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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /tools/testing/selftests/bpf/verifier
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/bpf/verifier')
-rw-r--r--tools/testing/selftests/bpf/verifier/.gitignore2
-rw-r--r--tools/testing/selftests/bpf/verifier/atomic_and.c100
-rw-r--r--tools/testing/selftests/bpf/verifier/atomic_bounds.c27
-rw-r--r--tools/testing/selftests/bpf/verifier/atomic_cmpxchg.c235
-rw-r--r--tools/testing/selftests/bpf/verifier/atomic_fetch.c151
-rw-r--r--tools/testing/selftests/bpf/verifier/atomic_fetch_add.c106
-rw-r--r--tools/testing/selftests/bpf/verifier/atomic_invalid.c25
-rw-r--r--tools/testing/selftests/bpf/verifier/atomic_or.c102
-rw-r--r--tools/testing/selftests/bpf/verifier/atomic_xchg.c46
-rw-r--r--tools/testing/selftests/bpf/verifier/atomic_xor.c77
-rw-r--r--tools/testing/selftests/bpf/verifier/basic.c23
-rw-r--r--tools/testing/selftests/bpf/verifier/basic_call.c50
-rw-r--r--tools/testing/selftests/bpf/verifier/basic_instr.c219
-rw-r--r--tools/testing/selftests/bpf/verifier/basic_stx_ldx.c45
-rw-r--r--tools/testing/selftests/bpf/verifier/bpf_loop_inline.c264
-rw-r--r--tools/testing/selftests/bpf/verifier/bpf_st_mem.c67
-rw-r--r--tools/testing/selftests/bpf/verifier/calls.c2398
-rw-r--r--tools/testing/selftests/bpf/verifier/ctx_sk_lookup.c532
-rw-r--r--tools/testing/selftests/bpf/verifier/ctx_skb.c1195
-rw-r--r--tools/testing/selftests/bpf/verifier/dead_code.c173
-rw-r--r--tools/testing/selftests/bpf/verifier/direct_value_access.c350
-rw-r--r--tools/testing/selftests/bpf/verifier/event_output.c119
-rw-r--r--tools/testing/selftests/bpf/verifier/jit.c218
-rw-r--r--tools/testing/selftests/bpf/verifier/jmp32.c895
-rw-r--r--tools/testing/selftests/bpf/verifier/jset.c169
-rw-r--r--tools/testing/selftests/bpf/verifier/jump.c397
-rw-r--r--tools/testing/selftests/bpf/verifier/junk_insn.c45
-rw-r--r--tools/testing/selftests/bpf/verifier/ld_abs.c286
-rw-r--r--tools/testing/selftests/bpf/verifier/ld_dw.c45
-rw-r--r--tools/testing/selftests/bpf/verifier/ld_imm64.c146
-rw-r--r--tools/testing/selftests/bpf/verifier/map_kptr.c444
-rw-r--r--tools/testing/selftests/bpf/verifier/perf_event_sample_period.c59
-rw-r--r--tools/testing/selftests/bpf/verifier/precise.c258
-rw-r--r--tools/testing/selftests/bpf/verifier/scale.c18
-rw-r--r--tools/testing/selftests/bpf/verifier/sleepable.c91
-rw-r--r--tools/testing/selftests/bpf/verifier/wide_access.c83
36 files changed, 9460 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/verifier/.gitignore b/tools/testing/selftests/bpf/verifier/.gitignore
new file mode 100644
index 0000000000..89c4a3d375
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+tests.h
diff --git a/tools/testing/selftests/bpf/verifier/atomic_and.c b/tools/testing/selftests/bpf/verifier/atomic_and.c
new file mode 100644
index 0000000000..fe4bb70eb9
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_and.c
@@ -0,0 +1,100 @@
+{
+ "BPF_ATOMIC_AND without fetch",
+ .insns = {
+ /* val = 0x110; */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
+ /* atomic_and(&val, 0x011); */
+ BPF_MOV64_IMM(BPF_REG_1, 0x011),
+ BPF_ATOMIC_OP(BPF_DW, BPF_AND, BPF_REG_10, BPF_REG_1, -8),
+ /* if (val != 0x010) exit(2); */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0x010, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ /* r1 should not be clobbered, no BPF_FETCH flag */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x011, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "BPF_ATOMIC_AND with fetch",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 123),
+ /* val = 0x110; */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
+ /* old = atomic_fetch_and(&val, 0x011); */
+ BPF_MOV64_IMM(BPF_REG_1, 0x011),
+ BPF_ATOMIC_OP(BPF_DW, BPF_AND | BPF_FETCH, BPF_REG_10, BPF_REG_1, -8),
+ /* if (old != 0x110) exit(3); */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x110, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ /* if (val != 0x010) exit(2); */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x010, 2),
+ BPF_MOV64_IMM(BPF_REG_1, 2),
+ BPF_EXIT_INSN(),
+ /* Check R0 wasn't clobbered (for fear of x86 JIT bug) */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 123, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ /* exit(0); */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "BPF_ATOMIC_AND with fetch 32bit",
+ .insns = {
+ /* r0 = (s64) -1 */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 1),
+ /* val = 0x110; */
+ BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 0x110),
+ /* old = atomic_fetch_and(&val, 0x011); */
+ BPF_MOV32_IMM(BPF_REG_1, 0x011),
+ BPF_ATOMIC_OP(BPF_W, BPF_AND | BPF_FETCH, BPF_REG_10, BPF_REG_1, -4),
+ /* if (old != 0x110) exit(3); */
+ BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 0x110, 2),
+ BPF_MOV32_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ /* if (val != 0x010) exit(2); */
+ BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_10, -4),
+ BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 0x010, 2),
+ BPF_MOV32_IMM(BPF_REG_1, 2),
+ BPF_EXIT_INSN(),
+ /* Check R0 wasn't clobbered (for fear of x86 JIT bug)
+ * It should be -1 so add 1 to get exit code.
+ */
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "BPF_ATOMIC_AND with fetch - r0 as source reg",
+ .insns = {
+ /* val = 0x110; */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
+ /* old = atomic_fetch_and(&val, 0x011); */
+ BPF_MOV64_IMM(BPF_REG_0, 0x011),
+ BPF_ATOMIC_OP(BPF_DW, BPF_AND | BPF_FETCH, BPF_REG_10, BPF_REG_0, -8),
+ /* if (old != 0x110) exit(3); */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0x110, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ /* if (val != 0x010) exit(2); */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x010, 2),
+ BPF_MOV64_IMM(BPF_REG_1, 2),
+ BPF_EXIT_INSN(),
+ /* exit(0); */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/atomic_bounds.c b/tools/testing/selftests/bpf/verifier/atomic_bounds.c
new file mode 100644
index 0000000000..e82183e491
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_bounds.c
@@ -0,0 +1,27 @@
+{
+ "BPF_ATOMIC bounds propagation, mem->reg",
+ .insns = {
+ /* a = 0; */
+ /*
+ * Note this is implemented with two separate instructions,
+ * where you might think one would suffice:
+ *
+ * BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ *
+ * This is because BPF_ST_MEM doesn't seem to set the stack slot
+ * type to 0 when storing an immediate.
+ */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
+ /* b = atomic_fetch_add(&a, 1); */
+ BPF_MOV64_IMM(BPF_REG_1, 1),
+ BPF_ATOMIC_OP(BPF_DW, BPF_ADD | BPF_FETCH, BPF_REG_10, BPF_REG_1, -8),
+ /* Verifier should be able to tell that this infinite loop isn't reachable. */
+ /* if (b) while (true) continue; */
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, -1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .result_unpriv = REJECT,
+ .errstr_unpriv = "back-edge",
+},
diff --git a/tools/testing/selftests/bpf/verifier/atomic_cmpxchg.c b/tools/testing/selftests/bpf/verifier/atomic_cmpxchg.c
new file mode 100644
index 0000000000..9a7b1106fd
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_cmpxchg.c
@@ -0,0 +1,235 @@
+{
+ "atomic compare-and-exchange smoketest - 64bit",
+ .insns = {
+ /* val = 3; */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 3),
+ /* old = atomic_cmpxchg(&val, 2, 4); */
+ BPF_MOV64_IMM(BPF_REG_1, 4),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_ATOMIC_OP(BPF_DW, BPF_CMPXCHG, BPF_REG_10, BPF_REG_1, -8),
+ /* if (old != 3) exit(2); */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 3, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ /* if (val != 3) exit(3); */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 3, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ /* old = atomic_cmpxchg(&val, 3, 4); */
+ BPF_MOV64_IMM(BPF_REG_1, 4),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_ATOMIC_OP(BPF_DW, BPF_CMPXCHG, BPF_REG_10, BPF_REG_1, -8),
+ /* if (old != 3) exit(4); */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 3, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 4),
+ BPF_EXIT_INSN(),
+ /* if (val != 4) exit(5); */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 4, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 5),
+ BPF_EXIT_INSN(),
+ /* exit(0); */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "atomic compare-and-exchange smoketest - 32bit",
+ .insns = {
+ /* val = 3; */
+ BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 3),
+ /* old = atomic_cmpxchg(&val, 2, 4); */
+ BPF_MOV32_IMM(BPF_REG_1, 4),
+ BPF_MOV32_IMM(BPF_REG_0, 2),
+ BPF_ATOMIC_OP(BPF_W, BPF_CMPXCHG, BPF_REG_10, BPF_REG_1, -4),
+ /* if (old != 3) exit(2); */
+ BPF_JMP32_IMM(BPF_JEQ, BPF_REG_0, 3, 2),
+ BPF_MOV32_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ /* if (val != 3) exit(3); */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -4),
+ BPF_JMP32_IMM(BPF_JEQ, BPF_REG_0, 3, 2),
+ BPF_MOV32_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ /* old = atomic_cmpxchg(&val, 3, 4); */
+ BPF_MOV32_IMM(BPF_REG_1, 4),
+ BPF_MOV32_IMM(BPF_REG_0, 3),
+ BPF_ATOMIC_OP(BPF_W, BPF_CMPXCHG, BPF_REG_10, BPF_REG_1, -4),
+ /* if (old != 3) exit(4); */
+ BPF_JMP32_IMM(BPF_JEQ, BPF_REG_0, 3, 2),
+ BPF_MOV32_IMM(BPF_REG_0, 4),
+ BPF_EXIT_INSN(),
+ /* if (val != 4) exit(5); */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -4),
+ BPF_JMP32_IMM(BPF_JEQ, BPF_REG_0, 4, 2),
+ BPF_MOV32_IMM(BPF_REG_0, 5),
+ BPF_EXIT_INSN(),
+ /* exit(0); */
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "Can't use cmpxchg on uninit src reg",
+ .insns = {
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 3),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_ATOMIC_OP(BPF_DW, BPF_CMPXCHG, BPF_REG_10, BPF_REG_2, -8),
+ BPF_EXIT_INSN(),
+ },
+ .result = REJECT,
+ .errstr = "!read_ok",
+},
+{
+ "BPF_W cmpxchg should zero top 32 bits",
+ .insns = {
+ /* r0 = U64_MAX; */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 1),
+ /* u64 val = r0; */
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
+ /* r0 = (u32)atomic_cmpxchg((u32 *)&val, r0, 1); */
+ BPF_MOV32_IMM(BPF_REG_1, 1),
+ BPF_ATOMIC_OP(BPF_W, BPF_CMPXCHG, BPF_REG_10, BPF_REG_1, -8),
+ /* r1 = 0x00000000FFFFFFFFull; */
+ BPF_MOV64_IMM(BPF_REG_1, 1),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 32),
+ BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 1),
+ /* if (r0 != r1) exit(1); */
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_1, 2),
+ BPF_MOV32_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ /* exit(0); */
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "Dest pointer in r0 - fail",
+ .insns = {
+ /* val = 0; */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ /* r0 = &val */
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
+ /* r0 = atomic_cmpxchg(&val, r0, 1); */
+ BPF_MOV64_IMM(BPF_REG_1, 1),
+ BPF_ATOMIC_OP(BPF_DW, BPF_CMPXCHG, BPF_REG_10, BPF_REG_1, -8),
+ /* if (r0 != 0) exit(1); */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ /* exit(0); */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .result_unpriv = REJECT,
+ .errstr_unpriv = "R0 leaks addr into mem",
+},
+{
+ "Dest pointer in r0 - succeed",
+ .insns = {
+ /* r0 = &val */
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
+ /* val = r0; */
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
+ /* r0 = atomic_cmpxchg(&val, r0, 0); */
+ BPF_MOV64_IMM(BPF_REG_1, 0),
+ BPF_ATOMIC_OP(BPF_DW, BPF_CMPXCHG, BPF_REG_10, BPF_REG_1, -8),
+ /* r1 = *r0 */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8),
+ /* exit(0); */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .result_unpriv = REJECT,
+ .errstr_unpriv = "R0 leaks addr into mem",
+},
+{
+ "Dest pointer in r0 - succeed, check 2",
+ .insns = {
+ /* r0 = &val */
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
+ /* val = r0; */
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
+ /* r5 = &val */
+ BPF_MOV64_REG(BPF_REG_5, BPF_REG_10),
+ /* r0 = atomic_cmpxchg(&val, r0, r5); */
+ BPF_ATOMIC_OP(BPF_DW, BPF_CMPXCHG, BPF_REG_10, BPF_REG_5, -8),
+ /* r1 = *r0 */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8),
+ /* exit(0); */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .result_unpriv = REJECT,
+ .errstr_unpriv = "R0 leaks addr into mem",
+},
+{
+ "Dest pointer in r0 - succeed, check 3",
+ .insns = {
+ /* r0 = &val */
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
+ /* val = r0; */
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
+ /* r5 = &val */
+ BPF_MOV64_REG(BPF_REG_5, BPF_REG_10),
+ /* r0 = atomic_cmpxchg(&val, r0, r5); */
+ BPF_ATOMIC_OP(BPF_W, BPF_CMPXCHG, BPF_REG_10, BPF_REG_5, -8),
+ /* exit(0); */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = REJECT,
+ .errstr = "invalid size of register fill",
+ .errstr_unpriv = "R0 leaks addr into mem",
+},
+{
+ "Dest pointer in r0 - succeed, check 4",
+ .insns = {
+ /* r0 = &val */
+ BPF_MOV32_REG(BPF_REG_0, BPF_REG_10),
+ /* val = r0; */
+ BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -8),
+ /* r5 = &val */
+ BPF_MOV32_REG(BPF_REG_5, BPF_REG_10),
+ /* r0 = atomic_cmpxchg(&val, r0, r5); */
+ BPF_ATOMIC_OP(BPF_W, BPF_CMPXCHG, BPF_REG_10, BPF_REG_5, -8),
+ /* r1 = *r10 */
+ BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_10, -8),
+ /* exit(0); */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .result_unpriv = REJECT,
+ .errstr_unpriv = "R10 partial copy of pointer",
+},
+{
+ "Dest pointer in r0 - succeed, check 5",
+ .insns = {
+ /* r0 = &val */
+ BPF_MOV32_REG(BPF_REG_0, BPF_REG_10),
+ /* val = r0; */
+ BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -8),
+ /* r5 = &val */
+ BPF_MOV32_REG(BPF_REG_5, BPF_REG_10),
+ /* r0 = atomic_cmpxchg(&val, r0, r5); */
+ BPF_ATOMIC_OP(BPF_W, BPF_CMPXCHG, BPF_REG_10, BPF_REG_5, -8),
+ /* r1 = *r0 */
+ BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, -8),
+ /* exit(0); */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = REJECT,
+ .errstr = "R0 invalid mem access",
+ .errstr_unpriv = "R10 partial copy of pointer",
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
diff --git a/tools/testing/selftests/bpf/verifier/atomic_fetch.c b/tools/testing/selftests/bpf/verifier/atomic_fetch.c
new file mode 100644
index 0000000000..5bf03fb4fa
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_fetch.c
@@ -0,0 +1,151 @@
+{
+ "atomic dw/fetch and address leakage of (map ptr & -1) via stack slot",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_1, -1),
+ BPF_LD_MAP_FD(BPF_REG_8, 0),
+ BPF_LD_MAP_FD(BPF_REG_9, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_9, 0),
+ BPF_ATOMIC_OP(BPF_DW, BPF_AND | BPF_FETCH, BPF_REG_2, BPF_REG_1, 0),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_2, 0),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+ BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+ BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_9, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 2, 4 },
+ .result = ACCEPT,
+ .result_unpriv = REJECT,
+ .errstr_unpriv = "leaking pointer from stack off -8",
+},
+{
+ "atomic dw/fetch and address leakage of (map ptr & -1) via returned value",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_1, -1),
+ BPF_LD_MAP_FD(BPF_REG_8, 0),
+ BPF_LD_MAP_FD(BPF_REG_9, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_9, 0),
+ BPF_ATOMIC_OP(BPF_DW, BPF_AND | BPF_FETCH, BPF_REG_2, BPF_REG_1, 0),
+ BPF_MOV64_REG(BPF_REG_9, BPF_REG_1),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+ BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+ BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_9, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 2, 4 },
+ .result = ACCEPT,
+ .result_unpriv = REJECT,
+ .errstr_unpriv = "leaking pointer from stack off -8",
+},
+{
+ "atomic w/fetch and address leakage of (map ptr & -1) via stack slot",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_1, -1),
+ BPF_LD_MAP_FD(BPF_REG_8, 0),
+ BPF_LD_MAP_FD(BPF_REG_9, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_9, 0),
+ BPF_ATOMIC_OP(BPF_W, BPF_AND | BPF_FETCH, BPF_REG_2, BPF_REG_1, 0),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_2, 0),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+ BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+ BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_9, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 2, 4 },
+ .result = REJECT,
+ .errstr = "invalid size of register fill",
+},
+{
+ "atomic w/fetch and address leakage of (map ptr & -1) via returned value",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_1, -1),
+ BPF_LD_MAP_FD(BPF_REG_8, 0),
+ BPF_LD_MAP_FD(BPF_REG_9, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_9, 0),
+ BPF_ATOMIC_OP(BPF_W, BPF_AND | BPF_FETCH, BPF_REG_2, BPF_REG_1, 0),
+ BPF_MOV64_REG(BPF_REG_9, BPF_REG_1),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+ BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+ BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_9, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 2, 4 },
+ .result = REJECT,
+ .errstr = "invalid size of register fill",
+},
+#define __ATOMIC_FETCH_OP_TEST(src_reg, dst_reg, operand1, op, operand2, expect) \
+ { \
+ "atomic fetch " #op ", src=" #dst_reg " dst=" #dst_reg, \
+ .insns = { \
+ /* u64 val = operan1; */ \
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, operand1), \
+ /* u64 old = atomic_fetch_add(&val, operand2); */ \
+ BPF_MOV64_REG(dst_reg, BPF_REG_10), \
+ BPF_MOV64_IMM(src_reg, operand2), \
+ BPF_ATOMIC_OP(BPF_DW, op, \
+ dst_reg, src_reg, -8), \
+ /* if (old != operand1) exit(1); */ \
+ BPF_JMP_IMM(BPF_JEQ, src_reg, operand1, 2), \
+ BPF_MOV64_IMM(BPF_REG_0, 1), \
+ BPF_EXIT_INSN(), \
+ /* if (val != result) exit (2); */ \
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -8), \
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, expect, 2), \
+ BPF_MOV64_IMM(BPF_REG_0, 2), \
+ BPF_EXIT_INSN(), \
+ /* exit(0); */ \
+ BPF_MOV64_IMM(BPF_REG_0, 0), \
+ BPF_EXIT_INSN(), \
+ }, \
+ .result = ACCEPT, \
+ }
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_2, 1, BPF_ADD | BPF_FETCH, 2, 3),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_0, BPF_REG_1, 1, BPF_ADD | BPF_FETCH, 2, 3),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_0, 1, BPF_ADD | BPF_FETCH, 2, 3),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_2, BPF_REG_3, 1, BPF_ADD | BPF_FETCH, 2, 3),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_4, BPF_REG_5, 1, BPF_ADD | BPF_FETCH, 2, 3),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_9, BPF_REG_8, 1, BPF_ADD | BPF_FETCH, 2, 3),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_2, 0x010, BPF_AND | BPF_FETCH, 0x011, 0x010),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_0, BPF_REG_1, 0x010, BPF_AND | BPF_FETCH, 0x011, 0x010),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_0, 0x010, BPF_AND | BPF_FETCH, 0x011, 0x010),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_2, BPF_REG_3, 0x010, BPF_AND | BPF_FETCH, 0x011, 0x010),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_4, BPF_REG_5, 0x010, BPF_AND | BPF_FETCH, 0x011, 0x010),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_9, BPF_REG_8, 0x010, BPF_AND | BPF_FETCH, 0x011, 0x010),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_2, 0x010, BPF_OR | BPF_FETCH, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_0, BPF_REG_1, 0x010, BPF_OR | BPF_FETCH, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_0, 0x010, BPF_OR | BPF_FETCH, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_2, BPF_REG_3, 0x010, BPF_OR | BPF_FETCH, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_4, BPF_REG_5, 0x010, BPF_OR | BPF_FETCH, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_9, BPF_REG_8, 0x010, BPF_OR | BPF_FETCH, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_2, 0x010, BPF_XOR | BPF_FETCH, 0x011, 0x001),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_0, BPF_REG_1, 0x010, BPF_XOR | BPF_FETCH, 0x011, 0x001),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_0, 0x010, BPF_XOR | BPF_FETCH, 0x011, 0x001),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_2, BPF_REG_3, 0x010, BPF_XOR | BPF_FETCH, 0x011, 0x001),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_4, BPF_REG_5, 0x010, BPF_XOR | BPF_FETCH, 0x011, 0x001),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_9, BPF_REG_8, 0x010, BPF_XOR | BPF_FETCH, 0x011, 0x001),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_2, 0x010, BPF_XCHG, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_0, BPF_REG_1, 0x010, BPF_XCHG, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_0, 0x010, BPF_XCHG, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_2, BPF_REG_3, 0x010, BPF_XCHG, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_4, BPF_REG_5, 0x010, BPF_XCHG, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_9, BPF_REG_8, 0x010, BPF_XCHG, 0x011, 0x011),
+#undef __ATOMIC_FETCH_OP_TEST
diff --git a/tools/testing/selftests/bpf/verifier/atomic_fetch_add.c b/tools/testing/selftests/bpf/verifier/atomic_fetch_add.c
new file mode 100644
index 0000000000..a91de8cd9d
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_fetch_add.c
@@ -0,0 +1,106 @@
+{
+ "BPF_ATOMIC_FETCH_ADD smoketest - 64bit",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ /* Write 3 to stack */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 3),
+ /* Put a 1 in R1, add it to the 3 on the stack, and load the value back into R1 */
+ BPF_MOV64_IMM(BPF_REG_1, 1),
+ BPF_ATOMIC_OP(BPF_DW, BPF_ADD | BPF_FETCH, BPF_REG_10, BPF_REG_1, -8),
+ /* Check the value we loaded back was 3 */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ /* Load value from stack */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -8),
+ /* Check value loaded from stack was 4 */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "BPF_ATOMIC_FETCH_ADD smoketest - 32bit",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ /* Write 3 to stack */
+ BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 3),
+ /* Put a 1 in R1, add it to the 3 on the stack, and load the value back into R1 */
+ BPF_MOV32_IMM(BPF_REG_1, 1),
+ BPF_ATOMIC_OP(BPF_W, BPF_ADD | BPF_FETCH, BPF_REG_10, BPF_REG_1, -4),
+ /* Check the value we loaded back was 3 */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ /* Load value from stack */
+ BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_10, -4),
+ /* Check value loaded from stack was 4 */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "Can't use ATM_FETCH_ADD on frame pointer",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 3),
+ BPF_ATOMIC_OP(BPF_DW, BPF_ADD | BPF_FETCH, BPF_REG_10, BPF_REG_10, -8),
+ BPF_EXIT_INSN(),
+ },
+ .result = REJECT,
+ .errstr_unpriv = "R10 leaks addr into mem",
+ .errstr = "frame pointer is read only",
+},
+{
+ "Can't use ATM_FETCH_ADD on uninit src reg",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 3),
+ BPF_ATOMIC_OP(BPF_DW, BPF_ADD | BPF_FETCH, BPF_REG_10, BPF_REG_2, -8),
+ BPF_EXIT_INSN(),
+ },
+ .result = REJECT,
+ /* It happens that the address leak check is first, but it would also be
+ * complain about the fact that we're trying to modify R10.
+ */
+ .errstr = "!read_ok",
+},
+{
+ "Can't use ATM_FETCH_ADD on uninit dst reg",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ATOMIC_OP(BPF_DW, BPF_ADD | BPF_FETCH, BPF_REG_2, BPF_REG_0, -8),
+ BPF_EXIT_INSN(),
+ },
+ .result = REJECT,
+ /* It happens that the address leak check is first, but it would also be
+ * complain about the fact that we're trying to modify R10.
+ */
+ .errstr = "!read_ok",
+},
+{
+ "Can't use ATM_FETCH_ADD on kernel memory",
+ .insns = {
+ /* This is an fentry prog, context is array of the args of the
+ * kernel function being called. Load first arg into R2.
+ */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 0),
+ /* First arg of bpf_fentry_test7 is a pointer to a struct.
+ * Attempt to modify that struct. Verifier shouldn't let us
+ * because it's kernel memory.
+ */
+ BPF_MOV64_IMM(BPF_REG_3, 1),
+ BPF_ATOMIC_OP(BPF_DW, BPF_ADD | BPF_FETCH, BPF_REG_2, BPF_REG_3, 0),
+ /* Done */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_TRACE_FENTRY,
+ .kfunc = "bpf_fentry_test7",
+ .result = REJECT,
+ .errstr = "only read is supported",
+},
diff --git a/tools/testing/selftests/bpf/verifier/atomic_invalid.c b/tools/testing/selftests/bpf/verifier/atomic_invalid.c
new file mode 100644
index 0000000000..25f4ac1c69
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_invalid.c
@@ -0,0 +1,25 @@
+#define __INVALID_ATOMIC_ACCESS_TEST(op) \
+ { \
+ "atomic " #op " access through non-pointer ", \
+ .insns = { \
+ BPF_MOV64_IMM(BPF_REG_0, 1), \
+ BPF_MOV64_IMM(BPF_REG_1, 0), \
+ BPF_ATOMIC_OP(BPF_DW, op, BPF_REG_1, BPF_REG_0, -8), \
+ BPF_MOV64_IMM(BPF_REG_0, 0), \
+ BPF_EXIT_INSN(), \
+ }, \
+ .result = REJECT, \
+ .errstr = "R1 invalid mem access 'scalar'" \
+ }
+__INVALID_ATOMIC_ACCESS_TEST(BPF_ADD),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_ADD | BPF_FETCH),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_ADD),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_ADD | BPF_FETCH),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_AND),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_AND | BPF_FETCH),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_OR),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_OR | BPF_FETCH),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_XOR),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_XOR | BPF_FETCH),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_XCHG),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_CMPXCHG),
diff --git a/tools/testing/selftests/bpf/verifier/atomic_or.c b/tools/testing/selftests/bpf/verifier/atomic_or.c
new file mode 100644
index 0000000000..9d0716ac50
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_or.c
@@ -0,0 +1,102 @@
+{
+ "BPF_ATOMIC OR without fetch",
+ .insns = {
+ /* val = 0x110; */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
+ /* atomic_or(&val, 0x011); */
+ BPF_MOV64_IMM(BPF_REG_1, 0x011),
+ BPF_ATOMIC_OP(BPF_DW, BPF_OR, BPF_REG_10, BPF_REG_1, -8),
+ /* if (val != 0x111) exit(2); */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0x111, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ /* r1 should not be clobbered, no BPF_FETCH flag */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x011, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "BPF_ATOMIC OR with fetch",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 123),
+ /* val = 0x110; */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
+ /* old = atomic_fetch_or(&val, 0x011); */
+ BPF_MOV64_IMM(BPF_REG_1, 0x011),
+ BPF_ATOMIC_OP(BPF_DW, BPF_OR | BPF_FETCH, BPF_REG_10, BPF_REG_1, -8),
+ /* if (old != 0x110) exit(3); */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x110, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ /* if (val != 0x111) exit(2); */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x111, 2),
+ BPF_MOV64_IMM(BPF_REG_1, 2),
+ BPF_EXIT_INSN(),
+ /* Check R0 wasn't clobbered (for fear of x86 JIT bug) */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 123, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ /* exit(0); */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "BPF_ATOMIC OR with fetch 32bit",
+ .insns = {
+ /* r0 = (s64) -1 */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 1),
+ /* val = 0x110; */
+ BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 0x110),
+ /* old = atomic_fetch_or(&val, 0x011); */
+ BPF_MOV32_IMM(BPF_REG_1, 0x011),
+ BPF_ATOMIC_OP(BPF_W, BPF_OR | BPF_FETCH, BPF_REG_10, BPF_REG_1, -4),
+ /* if (old != 0x110) exit(3); */
+ BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 0x110, 2),
+ BPF_MOV32_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ /* if (val != 0x111) exit(2); */
+ BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_10, -4),
+ BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 0x111, 2),
+ BPF_MOV32_IMM(BPF_REG_1, 2),
+ BPF_EXIT_INSN(),
+ /* Check R0 wasn't clobbered (for fear of x86 JIT bug)
+ * It should be -1 so add 1 to get exit code.
+ */
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "BPF_W atomic_fetch_or should zero top 32 bits",
+ .insns = {
+ /* r1 = U64_MAX; */
+ BPF_MOV64_IMM(BPF_REG_1, 0),
+ BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 1),
+ /* u64 val = r1; */
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
+ /* r1 = (u32)atomic_fetch_or((u32 *)&val, 2); */
+ BPF_MOV32_IMM(BPF_REG_1, 2),
+ BPF_ATOMIC_OP(BPF_W, BPF_OR | BPF_FETCH, BPF_REG_10, BPF_REG_1, -8),
+ /* r2 = 0x00000000FFFFFFFF; */
+ BPF_MOV64_IMM(BPF_REG_2, 1),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 32),
+ BPF_ALU64_IMM(BPF_SUB, BPF_REG_2, 1),
+ /* if (r2 != r1) exit(1); */
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_2, BPF_REG_1, 2),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ /* exit(0); */
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/atomic_xchg.c b/tools/testing/selftests/bpf/verifier/atomic_xchg.c
new file mode 100644
index 0000000000..33e2d6c973
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_xchg.c
@@ -0,0 +1,46 @@
+{
+ "atomic exchange smoketest - 64bit",
+ .insns = {
+ /* val = 3; */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 3),
+ /* old = atomic_xchg(&val, 4); */
+ BPF_MOV64_IMM(BPF_REG_1, 4),
+ BPF_ATOMIC_OP(BPF_DW, BPF_XCHG, BPF_REG_10, BPF_REG_1, -8),
+ /* if (old != 3) exit(1); */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ /* if (val != 4) exit(2); */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 4, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ /* exit(0); */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "atomic exchange smoketest - 32bit",
+ .insns = {
+ /* val = 3; */
+ BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 3),
+ /* old = atomic_xchg(&val, 4); */
+ BPF_MOV32_IMM(BPF_REG_1, 4),
+ BPF_ATOMIC_OP(BPF_W, BPF_XCHG, BPF_REG_10, BPF_REG_1, -4),
+ /* if (old != 3) exit(1); */
+ BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
+ BPF_MOV32_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ /* if (val != 4) exit(2); */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -4),
+ BPF_JMP32_IMM(BPF_JEQ, BPF_REG_0, 4, 2),
+ BPF_MOV32_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ /* exit(0); */
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/atomic_xor.c b/tools/testing/selftests/bpf/verifier/atomic_xor.c
new file mode 100644
index 0000000000..74e8fb4669
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_xor.c
@@ -0,0 +1,77 @@
+{
+ "BPF_ATOMIC XOR without fetch",
+ .insns = {
+ /* val = 0x110; */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
+ /* atomic_xor(&val, 0x011); */
+ BPF_MOV64_IMM(BPF_REG_1, 0x011),
+ BPF_ATOMIC_OP(BPF_DW, BPF_XOR, BPF_REG_10, BPF_REG_1, -8),
+ /* if (val != 0x101) exit(2); */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0x101, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ /* r1 should not be clobbered, no BPF_FETCH flag */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x011, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "BPF_ATOMIC XOR with fetch",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 123),
+ /* val = 0x110; */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
+ /* old = atomic_fetch_xor(&val, 0x011); */
+ BPF_MOV64_IMM(BPF_REG_1, 0x011),
+ BPF_ATOMIC_OP(BPF_DW, BPF_XOR | BPF_FETCH, BPF_REG_10, BPF_REG_1, -8),
+ /* if (old != 0x110) exit(3); */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x110, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ /* if (val != 0x101) exit(2); */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x101, 2),
+ BPF_MOV64_IMM(BPF_REG_1, 2),
+ BPF_EXIT_INSN(),
+ /* Check R0 wasn't clobbered (fxor fear of x86 JIT bug) */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 123, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ /* exit(0); */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "BPF_ATOMIC XOR with fetch 32bit",
+ .insns = {
+ /* r0 = (s64) -1 */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 1),
+ /* val = 0x110; */
+ BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 0x110),
+ /* old = atomic_fetch_xor(&val, 0x011); */
+ BPF_MOV32_IMM(BPF_REG_1, 0x011),
+ BPF_ATOMIC_OP(BPF_W, BPF_XOR | BPF_FETCH, BPF_REG_10, BPF_REG_1, -4),
+ /* if (old != 0x110) exit(3); */
+ BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 0x110, 2),
+ BPF_MOV32_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ /* if (val != 0x101) exit(2); */
+ BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_10, -4),
+ BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 0x101, 2),
+ BPF_MOV32_IMM(BPF_REG_1, 2),
+ BPF_EXIT_INSN(),
+ /* Check R0 wasn't clobbered (fxor fear of x86 JIT bug)
+ * It should be -1 so add 1 to get exit code.
+ */
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/basic.c b/tools/testing/selftests/bpf/verifier/basic.c
new file mode 100644
index 0000000000..de84f0d570
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/basic.c
@@ -0,0 +1,23 @@
+{
+ "empty prog",
+ .insns = {
+ },
+ .errstr = "last insn is not an exit or jmp",
+ .result = REJECT,
+},
+{
+ "only exit insn",
+ .insns = {
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "R0 !read_ok",
+ .result = REJECT,
+},
+{
+ "no bpf_exit",
+ .insns = {
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_0, BPF_REG_2),
+ },
+ .errstr = "not an exit",
+ .result = REJECT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/basic_call.c b/tools/testing/selftests/bpf/verifier/basic_call.c
new file mode 100644
index 0000000000..a8c6ab4c16
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/basic_call.c
@@ -0,0 +1,50 @@
+{
+ "invalid call insn1",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL | BPF_X, 0, 0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "unknown opcode 8d",
+ .result = REJECT,
+},
+{
+ "invalid call insn2",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 1, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "BPF_CALL uses reserved",
+ .result = REJECT,
+},
+{
+ "invalid function call",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1234567),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid func unknown#1234567",
+ .result = REJECT,
+},
+{
+ "invalid argument register",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_cgroup_classid),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_cgroup_classid),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "R1 !read_ok",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
+{
+ "non-invalid argument register",
+ .insns = {
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_cgroup_classid),
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_6),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_cgroup_classid),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
diff --git a/tools/testing/selftests/bpf/verifier/basic_instr.c b/tools/testing/selftests/bpf/verifier/basic_instr.c
new file mode 100644
index 0000000000..bd928a72ad
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/basic_instr.c
@@ -0,0 +1,219 @@
+{
+ "add+sub+mul",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_1, 1),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 2),
+ BPF_MOV64_IMM(BPF_REG_2, 3),
+ BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1),
+ BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 3),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = -3,
+},
+{
+ "xor32 zero extend check",
+ .insns = {
+ BPF_MOV32_IMM(BPF_REG_2, -1),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 32),
+ BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 0xffff),
+ BPF_ALU32_REG(BPF_XOR, BPF_REG_2, BPF_REG_2),
+ BPF_MOV32_IMM(BPF_REG_0, 2),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 1),
+ BPF_MOV32_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "arsh32 on imm",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_ALU32_IMM(BPF_ARSH, BPF_REG_0, 5),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 0,
+},
+{
+ "arsh32 on imm 2",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_0, 0x1122334485667788),
+ BPF_ALU32_IMM(BPF_ARSH, BPF_REG_0, 7),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = -16069393,
+},
+{
+ "arsh32 on reg",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_MOV64_IMM(BPF_REG_1, 5),
+ BPF_ALU32_REG(BPF_ARSH, BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 0,
+},
+{
+ "arsh32 on reg 2",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_0, 0xffff55667788),
+ BPF_MOV64_IMM(BPF_REG_1, 15),
+ BPF_ALU32_REG(BPF_ARSH, BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 43724,
+},
+{
+ "arsh64 on imm",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_ALU64_IMM(BPF_ARSH, BPF_REG_0, 5),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "arsh64 on reg",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_MOV64_IMM(BPF_REG_1, 5),
+ BPF_ALU64_REG(BPF_ARSH, BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "lsh64 by 0 imm",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_0, 1),
+ BPF_LD_IMM64(BPF_REG_1, 1),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 0),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "rsh64 by 0 imm",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_0, 1),
+ BPF_LD_IMM64(BPF_REG_1, 0x100000000LL),
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 0),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "arsh64 by 0 imm",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_0, 1),
+ BPF_LD_IMM64(BPF_REG_1, 0x100000000LL),
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1),
+ BPF_ALU64_IMM(BPF_ARSH, BPF_REG_1, 0),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "lsh64 by 0 reg",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_0, 1),
+ BPF_LD_IMM64(BPF_REG_1, 1),
+ BPF_LD_IMM64(BPF_REG_2, 0),
+ BPF_ALU64_REG(BPF_LSH, BPF_REG_1, BPF_REG_2),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "rsh64 by 0 reg",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_0, 1),
+ BPF_LD_IMM64(BPF_REG_1, 0x100000000LL),
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1),
+ BPF_LD_IMM64(BPF_REG_3, 0),
+ BPF_ALU64_REG(BPF_RSH, BPF_REG_1, BPF_REG_3),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "arsh64 by 0 reg",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_0, 1),
+ BPF_LD_IMM64(BPF_REG_1, 0x100000000LL),
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1),
+ BPF_LD_IMM64(BPF_REG_3, 0),
+ BPF_ALU64_REG(BPF_ARSH, BPF_REG_1, BPF_REG_3),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "invalid 64-bit BPF_END with BPF_TO_BE",
+ .insns = {
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ {
+ .code = BPF_ALU64 | BPF_END | BPF_TO_BE,
+ .dst_reg = BPF_REG_0,
+ .src_reg = 0,
+ .off = 0,
+ .imm = 32,
+ },
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "unknown opcode df",
+ .result = REJECT,
+},
+{
+ "mov64 src == dst",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_2, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_2),
+ // Check bounds are OK
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+},
+{
+ "mov64 src != dst",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_3, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_3),
+ // Check bounds are OK
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/basic_stx_ldx.c b/tools/testing/selftests/bpf/verifier/basic_stx_ldx.c
new file mode 100644
index 0000000000..7a0aab3f2c
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/basic_stx_ldx.c
@@ -0,0 +1,45 @@
+{
+ "invalid src register in STX",
+ .insns = {
+ BPF_STX_MEM(BPF_B, BPF_REG_10, -1, -1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "R15 is invalid",
+ .result = REJECT,
+},
+{
+ "invalid dst register in STX",
+ .insns = {
+ BPF_STX_MEM(BPF_B, 14, BPF_REG_10, -1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "R14 is invalid",
+ .result = REJECT,
+},
+{
+ "invalid dst register in ST",
+ .insns = {
+ BPF_ST_MEM(BPF_B, 14, -1, -1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "R14 is invalid",
+ .result = REJECT,
+},
+{
+ "invalid src register in LDX",
+ .insns = {
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, 12, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "R12 is invalid",
+ .result = REJECT,
+},
+{
+ "invalid dst register in LDX",
+ .insns = {
+ BPF_LDX_MEM(BPF_B, 11, BPF_REG_1, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "R11 is invalid",
+ .result = REJECT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/bpf_loop_inline.c b/tools/testing/selftests/bpf/verifier/bpf_loop_inline.c
new file mode 100644
index 0000000000..a535d41dc2
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/bpf_loop_inline.c
@@ -0,0 +1,264 @@
+#define BTF_TYPES \
+ .btf_strings = "\0int\0i\0ctx\0callback\0main\0", \
+ .btf_types = { \
+ /* 1: int */ BTF_TYPE_INT_ENC(1, BTF_INT_SIGNED, 0, 32, 4), \
+ /* 2: int* */ BTF_PTR_ENC(1), \
+ /* 3: void* */ BTF_PTR_ENC(0), \
+ /* 4: int __(void*) */ BTF_FUNC_PROTO_ENC(1, 1), \
+ BTF_FUNC_PROTO_ARG_ENC(7, 3), \
+ /* 5: int __(int, int*) */ BTF_FUNC_PROTO_ENC(1, 2), \
+ BTF_FUNC_PROTO_ARG_ENC(5, 1), \
+ BTF_FUNC_PROTO_ARG_ENC(7, 2), \
+ /* 6: main */ BTF_FUNC_ENC(20, 4), \
+ /* 7: callback */ BTF_FUNC_ENC(11, 5), \
+ BTF_END_RAW \
+ }
+
+#define MAIN_TYPE 6
+#define CALLBACK_TYPE 7
+
+/* can't use BPF_CALL_REL, jit_subprogs adjusts IMM & OFF
+ * fields for pseudo calls
+ */
+#define PSEUDO_CALL_INSN() \
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_CALL, \
+ INSN_OFF_MASK, INSN_IMM_MASK)
+
+/* can't use BPF_FUNC_loop constant,
+ * do_mix_fixups adjusts the IMM field
+ */
+#define HELPER_CALL_INSN() \
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, INSN_OFF_MASK, INSN_IMM_MASK)
+
+{
+ "inline simple bpf_loop call",
+ .insns = {
+ /* main */
+ /* force verifier state branching to verify logic on first and
+ * subsequent bpf_loop insn processing steps
+ */
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 777, 2),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 2),
+
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 6),
+ BPF_RAW_INSN(0, 0, 0, 0, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ /* callback */
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .expected_insns = { PSEUDO_CALL_INSN() },
+ .unexpected_insns = { HELPER_CALL_INSN() },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .result = ACCEPT,
+ .runs = 0,
+ .func_info = { { 0, MAIN_TYPE }, { 12, CALLBACK_TYPE } },
+ .func_info_cnt = 2,
+ BTF_TYPES
+},
+{
+ "don't inline bpf_loop call, flags non-zero",
+ .insns = {
+ /* main */
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_7, BPF_REG_0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_6, 0, 9),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 7),
+ BPF_RAW_INSN(0, 0, 0, 0, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 1),
+ BPF_JMP_IMM(BPF_JA, 0, 0, -10),
+ /* callback */
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .expected_insns = { HELPER_CALL_INSN() },
+ .unexpected_insns = { PSEUDO_CALL_INSN() },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .result = ACCEPT,
+ .runs = 0,
+ .func_info = { { 0, MAIN_TYPE }, { 16, CALLBACK_TYPE } },
+ .func_info_cnt = 2,
+ BTF_TYPES
+},
+{
+ "don't inline bpf_loop call, callback non-constant",
+ .insns = {
+ /* main */
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 777, 4), /* pick a random callback */
+
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 10),
+ BPF_RAW_INSN(0, 0, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 3),
+
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 8),
+ BPF_RAW_INSN(0, 0, 0, 0, 0),
+
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ /* callback */
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ /* callback #2 */
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .expected_insns = { HELPER_CALL_INSN() },
+ .unexpected_insns = { PSEUDO_CALL_INSN() },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .result = ACCEPT,
+ .runs = 0,
+ .func_info = {
+ { 0, MAIN_TYPE },
+ { 14, CALLBACK_TYPE },
+ { 16, CALLBACK_TYPE }
+ },
+ .func_info_cnt = 3,
+ BTF_TYPES
+},
+{
+ "bpf_loop_inline and a dead func",
+ .insns = {
+ /* main */
+
+ /* A reference to callback #1 to make verifier count it as a func.
+ * This reference is overwritten below and callback #1 is dead.
+ */
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 9),
+ BPF_RAW_INSN(0, 0, 0, 0, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 8),
+ BPF_RAW_INSN(0, 0, 0, 0, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ /* callback */
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ /* callback #2 */
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .expected_insns = { PSEUDO_CALL_INSN() },
+ .unexpected_insns = { HELPER_CALL_INSN() },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .result = ACCEPT,
+ .runs = 0,
+ .func_info = {
+ { 0, MAIN_TYPE },
+ { 10, CALLBACK_TYPE },
+ { 12, CALLBACK_TYPE }
+ },
+ .func_info_cnt = 3,
+ BTF_TYPES
+},
+{
+ "bpf_loop_inline stack locations for loop vars",
+ .insns = {
+ /* main */
+ BPF_ST_MEM(BPF_W, BPF_REG_10, -12, 0x77),
+ /* bpf_loop call #1 */
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 22),
+ BPF_RAW_INSN(0, 0, 0, 0, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+ /* bpf_loop call #2 */
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 2),
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 16),
+ BPF_RAW_INSN(0, 0, 0, 0, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+ /* call func and exit */
+ BPF_CALL_REL(2),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ /* func */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -32, 0x55),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 2),
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 6),
+ BPF_RAW_INSN(0, 0, 0, 0, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ /* callback */
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .expected_insns = {
+ BPF_ST_MEM(BPF_W, BPF_REG_10, -12, 0x77),
+ SKIP_INSNS(),
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -40),
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_7, -32),
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_8, -24),
+ SKIP_INSNS(),
+ /* offsets are the same as in the first call */
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -40),
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_7, -32),
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_8, -24),
+ SKIP_INSNS(),
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -32, 0x55),
+ SKIP_INSNS(),
+ /* offsets differ from main because of different offset
+ * in BPF_ST_MEM instruction
+ */
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -56),
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_7, -48),
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_8, -40),
+ },
+ .unexpected_insns = { HELPER_CALL_INSN() },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .result = ACCEPT,
+ .func_info = {
+ { 0, MAIN_TYPE },
+ { 16, MAIN_TYPE },
+ { 25, CALLBACK_TYPE },
+ },
+ .func_info_cnt = 3,
+ BTF_TYPES
+},
+{
+ "inline bpf_loop call in a big program",
+ .insns = {},
+ .fill_helper = bpf_fill_big_prog_with_loop_1,
+ .expected_insns = { PSEUDO_CALL_INSN() },
+ .unexpected_insns = { HELPER_CALL_INSN() },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .func_info = { { 0, MAIN_TYPE }, { 16, CALLBACK_TYPE } },
+ .func_info_cnt = 2,
+ BTF_TYPES
+},
+
+#undef HELPER_CALL_INSN
+#undef PSEUDO_CALL_INSN
+#undef CALLBACK_TYPE
+#undef MAIN_TYPE
+#undef BTF_TYPES
diff --git a/tools/testing/selftests/bpf/verifier/bpf_st_mem.c b/tools/testing/selftests/bpf/verifier/bpf_st_mem.c
new file mode 100644
index 0000000000..3af2501082
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/bpf_st_mem.c
@@ -0,0 +1,67 @@
+{
+ "BPF_ST_MEM stack imm non-zero",
+ .insns = {
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 42),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, -42),
+ /* if value is tracked correctly R0 is zero */
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ /* Use prog type that requires return value in range [0, 1] */
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+ .runs = -1,
+},
+{
+ "BPF_ST_MEM stack imm zero",
+ .insns = {
+ /* mark stack 0000 0000 */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ /* read and sum a few bytes */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_10, -8),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_10, -4),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_10, -1),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+ /* if value is tracked correctly R0 is zero */
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ /* Use prog type that requires return value in range [0, 1] */
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+ .runs = -1,
+},
+{
+ "BPF_ST_MEM stack imm zero, variable offset",
+ .insns = {
+ /* set fp[-16], fp[-24] to zeros */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, 0),
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -24, 0),
+ /* r0 = random value in range [-32, -15] */
+ BPF_EMIT_CALL(BPF_FUNC_get_prandom_u32),
+ BPF_JMP_IMM(BPF_JLE, BPF_REG_0, 16, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 32),
+ /* fp[r0] = 0, make a variable offset write of zero,
+ * this should preserve zero marks on stack.
+ */
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_10),
+ BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+ /* r0 = fp[-20], if variable offset write was tracked correctly
+ * r0 would be a known zero.
+ */
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_10, -20),
+ /* Would fail return code verification if r0 range is not tracked correctly. */
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ /* Use prog type that requires return value in range [0, 1] */
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+ .runs = -1,
+},
diff --git a/tools/testing/selftests/bpf/verifier/calls.c b/tools/testing/selftests/bpf/verifier/calls.c
new file mode 100644
index 0000000000..ab25a81fd3
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/calls.c
@@ -0,0 +1,2398 @@
+{
+ "calls: invalid kfunc call not eliminated",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .result = REJECT,
+ .errstr = "invalid kernel function call not eliminated in verifier pass",
+},
+{
+ "calls: invalid kfunc call unreachable",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_JMP_IMM(BPF_JGT, BPF_REG_0, 0, 2),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .result = ACCEPT,
+},
+{
+ "calls: invalid kfunc call: ptr_to_mem to struct with non-scalar",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "arg#0 pointer type STRUCT prog_test_fail1 must point to scalar",
+ .fixup_kfunc_btf_id = {
+ { "bpf_kfunc_call_test_fail1", 2 },
+ },
+},
+{
+ "calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "max struct nesting depth exceeded\narg#0 pointer type STRUCT prog_test_fail2",
+ .fixup_kfunc_btf_id = {
+ { "bpf_kfunc_call_test_fail2", 2 },
+ },
+},
+{
+ "calls: invalid kfunc call: ptr_to_mem to struct with FAM",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "arg#0 pointer type STRUCT prog_test_fail3 must point to scalar",
+ .fixup_kfunc_btf_id = {
+ { "bpf_kfunc_call_test_fail3", 2 },
+ },
+},
+{
+ "calls: invalid kfunc call: reg->type != PTR_TO_CTX",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "R1 must have zero offset when passed to release func or trusted arg to kfunc",
+ .fixup_kfunc_btf_id = {
+ { "bpf_kfunc_call_test_pass_ctx", 2 },
+ },
+},
+{
+ "calls: invalid kfunc call: void * not allowed in func proto without mem size arg",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "arg#0 pointer type UNKNOWN must point to scalar",
+ .fixup_kfunc_btf_id = {
+ { "bpf_kfunc_call_test_mem_len_fail1", 2 },
+ },
+},
+{
+ "calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "Possibly NULL pointer passed to trusted arg0",
+ .fixup_kfunc_btf_id = {
+ { "bpf_kfunc_call_test_acquire", 3 },
+ { "bpf_kfunc_call_test_release", 5 },
+ },
+},
+{
+ "calls: invalid kfunc call: reg->off must be zero when passed to release kfunc",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "R1 must have zero offset when passed to release func",
+ .fixup_kfunc_btf_id = {
+ { "bpf_kfunc_call_test_acquire", 3 },
+ { "bpf_kfunc_call_memb_release", 8 },
+ },
+},
+{
+ "calls: invalid kfunc call: don't match first member type when passed to release kfunc",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "kernel function bpf_kfunc_call_memb1_release args#0 expected pointer",
+ .fixup_kfunc_btf_id = {
+ { "bpf_kfunc_call_memb_acquire", 1 },
+ { "bpf_kfunc_call_memb1_release", 5 },
+ },
+},
+{
+ "calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -4),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_kfunc_btf_id = {
+ { "bpf_kfunc_call_test_acquire", 3 },
+ { "bpf_kfunc_call_test_offset", 9 },
+ { "bpf_kfunc_call_test_release", 12 },
+ },
+ .result_unpriv = REJECT,
+ .result = REJECT,
+ .errstr = "ptr R1 off=-4 disallowed",
+},
+{
+ "calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_0, 4),
+ BPF_JMP_IMM(BPF_JLE, BPF_REG_2, 4, 3),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 3),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_kfunc_btf_id = {
+ { "bpf_kfunc_call_test_acquire", 3 },
+ { "bpf_kfunc_call_test_release", 9 },
+ { "bpf_kfunc_call_test_release", 13 },
+ { "bpf_kfunc_call_test_release", 17 },
+ },
+ .result_unpriv = REJECT,
+ .result = REJECT,
+ .errstr = "variable ptr_ access var_off=(0x0; 0x7) disallowed",
+},
+{
+ "calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 16),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_kfunc_btf_id = {
+ { "bpf_kfunc_call_test_acquire", 3 },
+ { "bpf_kfunc_call_test_ref", 8 },
+ { "bpf_kfunc_call_test_ref", 10 },
+ },
+ .result_unpriv = REJECT,
+ .result = REJECT,
+ .errstr = "R1 must be",
+},
+{
+ "calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_kfunc_btf_id = {
+ { "bpf_kfunc_call_test_acquire", 3 },
+ { "bpf_kfunc_call_test_ref", 8 },
+ { "bpf_kfunc_call_test_release", 10 },
+ },
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+},
+{
+ "calls: basic sanity",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .result = ACCEPT,
+},
+{
+ "calls: not on unprivileged",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "calls: div by 0 in subprog",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 8),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV32_IMM(BPF_REG_2, 0),
+ BPF_MOV32_IMM(BPF_REG_3, 1),
+ BPF_ALU32_REG(BPF_DIV, BPF_REG_3, BPF_REG_2),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "calls: multiple ret types in subprog 1",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 8),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_MOV32_IMM(BPF_REG_0, 42),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "R0 invalid mem access 'scalar'",
+},
+{
+ "calls: multiple ret types in subprog 2",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 8),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 9),
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_6,
+ offsetof(struct __sk_buff, data)),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 64),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_hash_8b = { 16 },
+ .result = REJECT,
+ .errstr = "R0 min value is outside of the allowed memory range",
+},
+{
+ "calls: overlapping caller/callee",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "last insn is not an exit or jmp",
+ .result = REJECT,
+},
+{
+ "calls: wrong recursive calls",
+ .insns = {
+ BPF_JMP_IMM(BPF_JA, 0, 0, 4),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 4),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -2),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -2),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "jump out of range",
+ .result = REJECT,
+},
+{
+ "calls: wrong src reg",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 3, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "BPF_CALL uses reserved fields",
+ .result = REJECT,
+},
+{
+ "calls: wrong off value",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, -1, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "BPF_CALL uses reserved fields",
+ .result = REJECT,
+},
+{
+ "calls: jump back loop",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -1),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "the call stack of 9 frames is too deep",
+ .result = REJECT,
+},
+{
+ "calls: conditional call",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, mark)),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "jump out of range",
+ .result = REJECT,
+},
+{
+ "calls: conditional call 2",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, mark)),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .result = ACCEPT,
+},
+{
+ "calls: conditional call 3",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, mark)),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 4),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_JMP_IMM(BPF_JA, 0, 0, -6),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_JMP_IMM(BPF_JA, 0, 0, -6),
+ },
+ .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+ .errstr_unpriv = "back-edge from insn",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "calls: conditional call 4",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, mark)),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_JMP_IMM(BPF_JA, 0, 0, -5),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .result = ACCEPT,
+},
+{
+ "calls: conditional call 5",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, mark)),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_JMP_IMM(BPF_JA, 0, 0, -6),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "calls: conditional call 6",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, -3),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, mark)),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .errstr = "infinite loop detected",
+ .result = REJECT,
+},
+{
+ "calls: using r0 returned by callee",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .result = ACCEPT,
+},
+{
+ "calls: using uninit r0 from callee",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "!read_ok",
+ .result = REJECT,
+},
+{
+ "calls: callee is using r1",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, len)),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_ACT,
+ .result = ACCEPT,
+ .retval = TEST_DATA_LEN,
+},
+{
+ "calls: callee using args1",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "allowed for",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = POINTER_VALUE,
+},
+{
+ "calls: callee using wrong args2",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "R2 !read_ok",
+ .result = REJECT,
+},
+{
+ "calls: callee using two args",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_6,
+ offsetof(struct __sk_buff, len)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_6,
+ offsetof(struct __sk_buff, len)),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "allowed for",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = TEST_DATA_LEN + TEST_DATA_LEN - ETH_HLEN - ETH_HLEN,
+},
+{
+ "calls: callee changing pkt pointers",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, offsetof(struct xdp_md, data)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
+ offsetof(struct xdp_md, data_end)),
+ BPF_MOV64_REG(BPF_REG_8, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_8, 8),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_8, BPF_REG_7, 2),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ /* clear_all_pkt_pointers() has to walk all frames
+ * to make sure that pkt pointers in the caller
+ * are cleared when callee is calling a helper that
+ * adjusts packet size
+ */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_2, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_xdp_adjust_head),
+ BPF_EXIT_INSN(),
+ },
+ .result = REJECT,
+ .errstr = "R6 invalid mem access 'scalar'",
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "calls: ptr null check in subprog",
+ .insns = {
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_6, 0),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+ .fixup_map_hash_48b = { 3 },
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 0,
+},
+{
+ "calls: two calls with args",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 6),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, len)),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = TEST_DATA_LEN + TEST_DATA_LEN,
+},
+{
+ "calls: calls with stack arith",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -64),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -64),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -64),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 42,
+},
+{
+ "calls: calls with misaligned stack access",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -63),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -61),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -63),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+ .errstr = "misaligned stack access",
+ .result = REJECT,
+},
+{
+ "calls: calls control flow, jump test",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 43),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+ BPF_JMP_IMM(BPF_JA, 0, 0, -3),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 43,
+},
+{
+ "calls: calls control flow, jump test 2",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 43),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -3),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .errstr = "jump out of range from insn 1 to 4",
+ .result = REJECT,
+},
+{
+ "calls: two calls with bad jump",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 6),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, len)),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, -3),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "jump out of range from insn 11 to 9",
+ .result = REJECT,
+},
+{
+ "calls: recursive call. test1",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -1),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "the call stack of 9 frames is too deep",
+ .result = REJECT,
+},
+{
+ "calls: recursive call. test2",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -3),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "the call stack of 9 frames is too deep",
+ .result = REJECT,
+},
+{
+ "calls: unreachable code",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "unreachable insn 6",
+ .result = REJECT,
+},
+{
+ "calls: invalid call",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -4),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "invalid destination",
+ .result = REJECT,
+},
+{
+ "calls: invalid call 2",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 0x7fffffff),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "invalid destination",
+ .result = REJECT,
+},
+{
+ "calls: jumping across function bodies. test1",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "jump out of range",
+ .result = REJECT,
+},
+{
+ "calls: jumping across function bodies. test2",
+ .insns = {
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "jump out of range",
+ .result = REJECT,
+},
+{
+ "calls: call without exit",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -2),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "not an exit",
+ .result = REJECT,
+},
+{
+ "calls: call into middle of ld_imm64",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ BPF_LD_IMM64(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "last insn",
+ .result = REJECT,
+},
+{
+ "calls: call into middle of other call",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "last insn",
+ .result = REJECT,
+},
+{
+ "calls: subprog call with ld_abs in main prog",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_LD_ABS(BPF_B, 0),
+ BPF_LD_ABS(BPF_H, 0),
+ BPF_LD_ABS(BPF_W, 0),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_6),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 5),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_7),
+ BPF_LD_ABS(BPF_B, 0),
+ BPF_LD_ABS(BPF_H, 0),
+ BPF_LD_ABS(BPF_W, 0),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_2, 1),
+ BPF_MOV64_IMM(BPF_REG_3, 2),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_vlan_push),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+},
+{
+ "calls: two calls with bad fallthrough",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 6),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_0),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, len)),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .errstr = "not an exit",
+ .result = REJECT,
+},
+{
+ "calls: two calls with stack read",
+ .insns = {
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 6),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .result = ACCEPT,
+},
+{
+ "calls: two calls with stack write",
+ .insns = {
+ /* main prog */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -16),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 7),
+ BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_8),
+ /* write into stack frame of main prog */
+ BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 2 */
+ /* read from stack frame of main prog */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .result = ACCEPT,
+},
+{
+ "calls: stack overflow using two frames (pre-call access)",
+ .insns = {
+ /* prog 1 */
+ BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+
+ /* prog 2 */
+ BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .errstr = "combined stack size",
+ .result = REJECT,
+},
+{
+ "calls: stack overflow using two frames (post-call access)",
+ .insns = {
+ /* prog 1 */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 2),
+ BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
+ BPF_EXIT_INSN(),
+
+ /* prog 2 */
+ BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .errstr = "combined stack size",
+ .result = REJECT,
+},
+{
+ "calls: stack depth check using three frames. test1",
+ .insns = {
+ /* main */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 4), /* call A */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 5), /* call B */
+ BPF_ST_MEM(BPF_B, BPF_REG_10, -32, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ /* A */
+ BPF_ST_MEM(BPF_B, BPF_REG_10, -256, 0),
+ BPF_EXIT_INSN(),
+ /* B */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, -3), /* call A */
+ BPF_ST_MEM(BPF_B, BPF_REG_10, -64, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ /* stack_main=32, stack_A=256, stack_B=64
+ * and max(main+A, main+A+B) < 512
+ */
+ .result = ACCEPT,
+},
+{
+ "calls: stack depth check using three frames. test2",
+ .insns = {
+ /* main */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 4), /* call A */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 5), /* call B */
+ BPF_ST_MEM(BPF_B, BPF_REG_10, -32, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ /* A */
+ BPF_ST_MEM(BPF_B, BPF_REG_10, -64, 0),
+ BPF_EXIT_INSN(),
+ /* B */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, -3), /* call A */
+ BPF_ST_MEM(BPF_B, BPF_REG_10, -256, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ /* stack_main=32, stack_A=64, stack_B=256
+ * and max(main+A, main+A+B) < 512
+ */
+ .result = ACCEPT,
+},
+{
+ "calls: stack depth check using three frames. test3",
+ .insns = {
+ /* main */
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 6), /* call A */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 8), /* call B */
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_6, 0, 1),
+ BPF_ST_MEM(BPF_B, BPF_REG_10, -64, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ /* A */
+ BPF_JMP_IMM(BPF_JLT, BPF_REG_1, 10, 1),
+ BPF_EXIT_INSN(),
+ BPF_ST_MEM(BPF_B, BPF_REG_10, -224, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, -3),
+ /* B */
+ BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 2, 1),
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, -6), /* call A */
+ BPF_ST_MEM(BPF_B, BPF_REG_10, -256, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ /* stack_main=64, stack_A=224, stack_B=256
+ * and max(main+A, main+A+B) > 512
+ */
+ .errstr = "combined stack",
+ .result = REJECT,
+},
+{
+ "calls: stack depth check using three frames. test4",
+ /* void main(void) {
+ * func1(0);
+ * func1(1);
+ * func2(1);
+ * }
+ * void func1(int alloc_or_recurse) {
+ * if (alloc_or_recurse) {
+ * frame_pointer[-300] = 1;
+ * } else {
+ * func2(alloc_or_recurse);
+ * }
+ * }
+ * void func2(int alloc_or_recurse) {
+ * if (alloc_or_recurse) {
+ * frame_pointer[-300] = 1;
+ * }
+ * }
+ */
+ .insns = {
+ /* main */
+ BPF_MOV64_IMM(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 6), /* call A */
+ BPF_MOV64_IMM(BPF_REG_1, 1),
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 4), /* call A */
+ BPF_MOV64_IMM(BPF_REG_1, 1),
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 7), /* call B */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ /* A */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2),
+ BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
+ BPF_EXIT_INSN(),
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call B */
+ BPF_EXIT_INSN(),
+ /* B */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+ BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .result = REJECT,
+ .errstr = "combined stack",
+},
+{
+ "calls: stack depth check using three frames. test5",
+ .insns = {
+ /* main */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call A */
+ BPF_EXIT_INSN(),
+ /* A */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call B */
+ BPF_EXIT_INSN(),
+ /* B */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call C */
+ BPF_EXIT_INSN(),
+ /* C */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call D */
+ BPF_EXIT_INSN(),
+ /* D */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call E */
+ BPF_EXIT_INSN(),
+ /* E */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call F */
+ BPF_EXIT_INSN(),
+ /* F */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call G */
+ BPF_EXIT_INSN(),
+ /* G */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call H */
+ BPF_EXIT_INSN(),
+ /* H */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .errstr = "call stack",
+ .result = REJECT,
+},
+{
+ "calls: stack depth check in dead code",
+ .insns = {
+ /* main */
+ BPF_MOV64_IMM(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call A */
+ BPF_EXIT_INSN(),
+ /* A */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 2), /* call B */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ /* B */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call C */
+ BPF_EXIT_INSN(),
+ /* C */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call D */
+ BPF_EXIT_INSN(),
+ /* D */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call E */
+ BPF_EXIT_INSN(),
+ /* E */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call F */
+ BPF_EXIT_INSN(),
+ /* F */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call G */
+ BPF_EXIT_INSN(),
+ /* G */
+ BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call H */
+ BPF_EXIT_INSN(),
+ /* H */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .errstr = "call stack",
+ .result = REJECT,
+},
+{
+ "calls: spill into caller stack frame",
+ .insns = {
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .errstr = "cannot spill",
+ .result = REJECT,
+},
+{
+ "calls: write into caller stack frame",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
+ BPF_EXIT_INSN(),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .result = ACCEPT,
+ .retval = 42,
+},
+{
+ "calls: write into callee stack frame",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, -8),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .errstr = "cannot return stack pointer",
+ .result = REJECT,
+},
+{
+ "calls: two calls with stack write and void return",
+ .insns = {
+ /* main prog */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -16),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+
+ /* subprog 2 */
+ /* write into stack frame of main prog */
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+ BPF_EXIT_INSN(), /* void return */
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .result = ACCEPT,
+},
+{
+ "calls: ambiguous return value",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 5),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "allowed for",
+ .result_unpriv = REJECT,
+ .errstr = "R0 !read_ok",
+ .result = REJECT,
+},
+{
+ "calls: two calls that return map_value",
+ .insns = {
+ /* main prog */
+ /* pass fp-16, fp-8 into a function */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 8),
+
+ /* fetch map_value_ptr from the stack of this function */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+ /* fetch secound map_value_ptr from the stack */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -16),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ /* call 3rd function twice */
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+ /* first time with fp-8 */
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+ /* second time with fp-16 */
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+
+ /* subprog 2 */
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ /* lookup from map */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ /* write map_value_ptr into stack frame of main prog */
+ BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(), /* return 0 */
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .fixup_map_hash_8b = { 23 },
+ .result = ACCEPT,
+},
+{
+ "calls: two calls that return map_value with bool condition",
+ .insns = {
+ /* main prog */
+ /* pass fp-16, fp-8 into a function */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ /* call 3rd function twice */
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+ /* first time with fp-8 */
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 9),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 1, 2),
+ /* fetch map_value_ptr from the stack of this function */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+ /* second time with fp-16 */
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 1, 2),
+ /* fetch secound map_value_ptr from the stack */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_7, 0),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 2 */
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ /* lookup from map */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(), /* return 0 */
+ /* write map_value_ptr into stack frame of main prog */
+ BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(), /* return 1 */
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .fixup_map_hash_8b = { 23 },
+ .result = ACCEPT,
+},
+{
+ "calls: two calls that return map_value with incorrect bool check",
+ .insns = {
+ /* main prog */
+ /* pass fp-16, fp-8 into a function */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ /* call 3rd function twice */
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+ /* first time with fp-8 */
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 9),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 1, 2),
+ /* fetch map_value_ptr from the stack of this function */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+ /* second time with fp-16 */
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+ /* fetch secound map_value_ptr from the stack */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_7, 0),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 2 */
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ /* lookup from map */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(), /* return 0 */
+ /* write map_value_ptr into stack frame of main prog */
+ BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(), /* return 1 */
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .fixup_map_hash_8b = { 23 },
+ .result = REJECT,
+ .errstr = "R0 invalid mem access 'scalar'",
+ .result_unpriv = REJECT,
+ .errstr_unpriv = "invalid read from stack R7 off=-16 size=8",
+},
+{
+ "calls: two calls that receive map_value via arg=ptr_stack_of_caller. test1",
+ .insns = {
+ /* main prog */
+ /* pass fp-16, fp-8 into a function */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+ /* 1st lookup from map */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_8, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ /* write map_value_ptr into stack frame of main prog at fp-8 */
+ BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+ BPF_MOV64_IMM(BPF_REG_8, 1),
+
+ /* 2nd lookup from map */
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), /* 20 */
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, /* 24 */
+ BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_9, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ /* write map_value_ptr into stack frame of main prog at fp-16 */
+ BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+ BPF_MOV64_IMM(BPF_REG_9, 1),
+
+ /* call 3rd func with fp-8, 0|1, fp-16, 0|1 */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), /* 30 */
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_8),
+ BPF_MOV64_REG(BPF_REG_3, BPF_REG_7),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_9),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1), /* 34 */
+ BPF_EXIT_INSN(),
+
+ /* subprog 2 */
+ /* if arg2 == 1 do *arg1 = 0 */
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 1, 2),
+ /* fetch map_value_ptr from the stack of this function */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+
+ /* if arg4 == 1 do *arg3 = 0 */
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_4, 1, 2),
+ /* fetch map_value_ptr from the stack of this function */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_hash_8b = { 12, 22 },
+ .result = REJECT,
+ .errstr = "invalid access to map value, value_size=8 off=2 size=8",
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "calls: two calls that receive map_value via arg=ptr_stack_of_caller. test2",
+ .insns = {
+ /* main prog */
+ /* pass fp-16, fp-8 into a function */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+ /* 1st lookup from map */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_8, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ /* write map_value_ptr into stack frame of main prog at fp-8 */
+ BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+ BPF_MOV64_IMM(BPF_REG_8, 1),
+
+ /* 2nd lookup from map */
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), /* 20 */
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, /* 24 */
+ BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_9, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ /* write map_value_ptr into stack frame of main prog at fp-16 */
+ BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+ BPF_MOV64_IMM(BPF_REG_9, 1),
+
+ /* call 3rd func with fp-8, 0|1, fp-16, 0|1 */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), /* 30 */
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_8),
+ BPF_MOV64_REG(BPF_REG_3, BPF_REG_7),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_9),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1), /* 34 */
+ BPF_EXIT_INSN(),
+
+ /* subprog 2 */
+ /* if arg2 == 1 do *arg1 = 0 */
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 1, 2),
+ /* fetch map_value_ptr from the stack of this function */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+
+ /* if arg4 == 1 do *arg3 = 0 */
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_4, 1, 2),
+ /* fetch map_value_ptr from the stack of this function */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_hash_8b = { 12, 22 },
+ .result = ACCEPT,
+},
+{
+ "calls: two jumps that receive map_value via arg=ptr_stack_of_jumper. test3",
+ .insns = {
+ /* main prog */
+ /* pass fp-16, fp-8 into a function */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+ /* 1st lookup from map */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -24, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -24),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_8, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ /* write map_value_ptr into stack frame of main prog at fp-8 */
+ BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+ BPF_MOV64_IMM(BPF_REG_8, 1),
+
+ /* 2nd lookup from map */
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -24),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_9, 0), // 26
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ /* write map_value_ptr into stack frame of main prog at fp-16 */
+ BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+ BPF_MOV64_IMM(BPF_REG_9, 1),
+
+ /* call 3rd func with fp-8, 0|1, fp-16, 0|1 */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), // 30
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_8),
+ BPF_MOV64_REG(BPF_REG_3, BPF_REG_7),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_9),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), // 34
+ BPF_JMP_IMM(BPF_JA, 0, 0, -30),
+
+ /* subprog 2 */
+ /* if arg2 == 1 do *arg1 = 0 */
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 1, 2),
+ /* fetch map_value_ptr from the stack of this function */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+
+ /* if arg4 == 1 do *arg3 = 0 */
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_4, 1, 2),
+ /* fetch map_value_ptr from the stack of this function */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, -8),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_hash_8b = { 12, 22 },
+ .result = REJECT,
+ .errstr = "invalid access to map value, value_size=8 off=2 size=8",
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "calls: two calls that receive map_value_ptr_or_null via arg. test1",
+ .insns = {
+ /* main prog */
+ /* pass fp-16, fp-8 into a function */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+ /* 1st lookup from map */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ /* write map_value_ptr_or_null into stack frame of main prog at fp-8 */
+ BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_8, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+ BPF_MOV64_IMM(BPF_REG_8, 1),
+
+ /* 2nd lookup from map */
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ /* write map_value_ptr_or_null into stack frame of main prog at fp-16 */
+ BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_9, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+ BPF_MOV64_IMM(BPF_REG_9, 1),
+
+ /* call 3rd func with fp-8, 0|1, fp-16, 0|1 */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_8),
+ BPF_MOV64_REG(BPF_REG_3, BPF_REG_7),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_9),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+
+ /* subprog 2 */
+ /* if arg2 == 1 do *arg1 = 0 */
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 1, 2),
+ /* fetch map_value_ptr from the stack of this function */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+
+ /* if arg4 == 1 do *arg3 = 0 */
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_4, 1, 2),
+ /* fetch map_value_ptr from the stack of this function */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_hash_8b = { 12, 22 },
+ .result = ACCEPT,
+},
+{
+ "calls: two calls that receive map_value_ptr_or_null via arg. test2",
+ .insns = {
+ /* main prog */
+ /* pass fp-16, fp-8 into a function */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+ /* 1st lookup from map */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ /* write map_value_ptr_or_null into stack frame of main prog at fp-8 */
+ BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_8, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+ BPF_MOV64_IMM(BPF_REG_8, 1),
+
+ /* 2nd lookup from map */
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ /* write map_value_ptr_or_null into stack frame of main prog at fp-16 */
+ BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_9, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+ BPF_MOV64_IMM(BPF_REG_9, 1),
+
+ /* call 3rd func with fp-8, 0|1, fp-16, 0|1 */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_8),
+ BPF_MOV64_REG(BPF_REG_3, BPF_REG_7),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_9),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+
+ /* subprog 2 */
+ /* if arg2 == 1 do *arg1 = 0 */
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 1, 2),
+ /* fetch map_value_ptr from the stack of this function */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+
+ /* if arg4 == 0 do *arg3 = 0 */
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_4, 0, 2),
+ /* fetch map_value_ptr from the stack of this function */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
+ /* write into map value */
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_hash_8b = { 12, 22 },
+ .result = REJECT,
+ .errstr = "R0 invalid mem access 'scalar'",
+},
+{
+ "calls: pkt_ptr spill into caller stack",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ /* spill unchecked pkt_ptr into stack of caller */
+ BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
+ /* now the pkt range is verified, read pkt_ptr from stack */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0),
+ /* write 4 bytes into packet */
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .retval = POINTER_VALUE,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "calls: pkt_ptr spill into caller stack 2",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ /* Marking is still kept, but not in all cases safe. */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+ BPF_ST_MEM(BPF_W, BPF_REG_4, 0, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ /* spill unchecked pkt_ptr into stack of caller */
+ BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
+ /* now the pkt range is verified, read pkt_ptr from stack */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0),
+ /* write 4 bytes into packet */
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .errstr = "invalid access to packet",
+ .result = REJECT,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "calls: pkt_ptr spill into caller stack 3",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
+ /* Marking is still kept and safe here. */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+ BPF_ST_MEM(BPF_W, BPF_REG_4, 0, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ /* spill unchecked pkt_ptr into stack of caller */
+ BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+ BPF_MOV64_IMM(BPF_REG_5, 0),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
+ BPF_MOV64_IMM(BPF_REG_5, 1),
+ /* now the pkt range is verified, read pkt_ptr from stack */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0),
+ /* write 4 bytes into packet */
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 1,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "calls: pkt_ptr spill into caller stack 4",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
+ /* Check marking propagated. */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+ BPF_ST_MEM(BPF_W, BPF_REG_4, 0, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ /* spill unchecked pkt_ptr into stack of caller */
+ BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+ BPF_MOV64_IMM(BPF_REG_5, 0),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
+ BPF_MOV64_IMM(BPF_REG_5, 1),
+ /* don't read back pkt_ptr from stack here */
+ /* write 4 bytes into packet */
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 1,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "calls: pkt_ptr spill into caller stack 5",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+ BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_4, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ BPF_MOV64_IMM(BPF_REG_5, 0),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
+ /* spill checked pkt_ptr into stack of caller */
+ BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+ BPF_MOV64_IMM(BPF_REG_5, 1),
+ /* don't read back pkt_ptr from stack here */
+ /* write 4 bytes into packet */
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .errstr = "same insn cannot be used with different",
+ .result = REJECT,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "calls: pkt_ptr spill into caller stack 6",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+ BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_4, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ BPF_MOV64_IMM(BPF_REG_5, 0),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
+ /* spill checked pkt_ptr into stack of caller */
+ BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+ BPF_MOV64_IMM(BPF_REG_5, 1),
+ /* don't read back pkt_ptr from stack here */
+ /* write 4 bytes into packet */
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .errstr = "R4 invalid mem access",
+ .result = REJECT,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "calls: pkt_ptr spill into caller stack 7",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_2, 0),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+ BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_4, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ BPF_MOV64_IMM(BPF_REG_5, 0),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
+ /* spill checked pkt_ptr into stack of caller */
+ BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+ BPF_MOV64_IMM(BPF_REG_5, 1),
+ /* don't read back pkt_ptr from stack here */
+ /* write 4 bytes into packet */
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .errstr = "R4 invalid mem access",
+ .result = REJECT,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "calls: pkt_ptr spill into caller stack 8",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ BPF_JMP_REG(BPF_JLE, BPF_REG_0, BPF_REG_3, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+ BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_4, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ BPF_MOV64_IMM(BPF_REG_5, 0),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
+ /* spill checked pkt_ptr into stack of caller */
+ BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+ BPF_MOV64_IMM(BPF_REG_5, 1),
+ /* don't read back pkt_ptr from stack here */
+ /* write 4 bytes into packet */
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "calls: pkt_ptr spill into caller stack 9",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ BPF_JMP_REG(BPF_JLE, BPF_REG_0, BPF_REG_3, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+ BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_4, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ BPF_MOV64_IMM(BPF_REG_5, 0),
+ /* spill unchecked pkt_ptr into stack of caller */
+ BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
+ BPF_MOV64_IMM(BPF_REG_5, 1),
+ /* don't read back pkt_ptr from stack here */
+ /* write 4 bytes into packet */
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .errstr = "invalid access to packet",
+ .result = REJECT,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "calls: caller stack init to zero or map_value_or_null",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+ /* fetch map_value_or_null or const_zero from stack */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+ /* store into map_value */
+ BPF_ST_MEM(BPF_W, BPF_REG_0, 0, 0),
+ BPF_EXIT_INSN(),
+
+ /* subprog 1 */
+ /* if (ctx == 0) return; */
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 8),
+ /* else bpf_map_lookup() and *(fp - 8) = r0 */
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ /* write map_value_ptr_or_null into stack frame of main prog at fp-8 */
+ BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_hash_8b = { 13 },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_XDP,
+},
+{
+ "calls: stack init to zero and pruning",
+ .insns = {
+ /* first make allocated_stack 16 byte */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, 0),
+ /* now fork the execution such that the false branch
+ * of JGT insn will be verified second and it skisp zero
+ * init of fp-8 stack slot. If stack liveness marking
+ * is missing live_read marks from call map_lookup
+ * processing then pruning will incorrectly assume
+ * that fp-8 stack slot was unused in the fall-through
+ * branch and will accept the program incorrectly
+ */
+ BPF_EMIT_CALL(BPF_FUNC_get_prandom_u32),
+ BPF_JMP_IMM(BPF_JGT, BPF_REG_0, 2, 2),
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_hash_48b = { 7 },
+ .errstr_unpriv = "invalid indirect read from stack R2 off -8+0 size 8",
+ .result_unpriv = REJECT,
+ /* in privileged mode reads from uninitialized stack locations are permitted */
+ .result = ACCEPT,
+},
+{
+ "calls: ctx read at start of subprog",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 5),
+ BPF_JMP_REG(BPF_JSGT, BPF_REG_0, BPF_REG_0, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_B, BPF_REG_9, BPF_REG_1, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+ .errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+},
+{
+ "calls: cross frame pruning",
+ .insns = {
+ /* r8 = !!random();
+ * call pruner()
+ * if (r8)
+ * do something bad;
+ */
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+ BPF_MOV64_IMM(BPF_REG_8, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_MOV64_IMM(BPF_REG_8, 1),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_8, 1, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_9, BPF_REG_1, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+ .errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+ .errstr = "!read_ok",
+ .result = REJECT,
+},
+{
+ "calls: cross frame pruning - liveness propagation",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+ BPF_MOV64_IMM(BPF_REG_8, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_MOV64_IMM(BPF_REG_8, 1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+ BPF_MOV64_IMM(BPF_REG_9, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_MOV64_IMM(BPF_REG_9, 1),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_8, 1, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_2, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+ .errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+ .errstr = "!read_ok",
+ .result = REJECT,
+},
+/* Make sure that verifier.c:states_equal() considers IDs from all
+ * frames when building 'idmap' for check_ids().
+ */
+{
+ "calls: check_ids() across call boundary",
+ .insns = {
+ /* Function main() */
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ /* fp[-24] = map_lookup_elem(...) ; get a MAP_VALUE_PTR_OR_NULL with some ID */
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1,
+ 0),
+ BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+ BPF_STX_MEM(BPF_DW, BPF_REG_FP, BPF_REG_0, -24),
+ /* fp[-32] = map_lookup_elem(...) ; get a MAP_VALUE_PTR_OR_NULL with some ID */
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1,
+ 0),
+ BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+ BPF_STX_MEM(BPF_DW, BPF_REG_FP, BPF_REG_0, -32),
+ /* call foo(&fp[-24], &fp[-32]) ; both arguments have IDs in the current
+ * ; stack frame
+ */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_FP),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -24),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_FP),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32),
+ BPF_CALL_REL(2),
+ /* exit 0 */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ /* Function foo()
+ *
+ * r9 = &frame[0].fp[-24] ; save arguments in the callee saved registers,
+ * r8 = &frame[0].fp[-32] ; arguments are pointers to pointers to map value
+ */
+ BPF_MOV64_REG(BPF_REG_9, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_8, BPF_REG_2),
+ /* r7 = ktime_get_ns() */
+ BPF_EMIT_CALL(BPF_FUNC_ktime_get_ns),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+ /* r6 = ktime_get_ns() */
+ BPF_EMIT_CALL(BPF_FUNC_ktime_get_ns),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+ /* if r6 > r7 goto +1 ; no new information about the state is derived from
+ * ; this check, thus produced verifier states differ
+ * ; only in 'insn_idx'
+ * r9 = r8
+ */
+ BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 1),
+ BPF_MOV64_REG(BPF_REG_9, BPF_REG_8),
+ /* r9 = *r9 ; verifier get's to this point via two paths:
+ * ; (I) one including r9 = r8, verified first;
+ * ; (II) one excluding r9 = r8, verified next.
+ * ; After load of *r9 to r9 the frame[0].fp[-24].id == r9.id.
+ * ; Suppose that checkpoint is created here via path (I).
+ * ; When verifying via (II) the r9.id must be compared against
+ * ; frame[0].fp[-24].id, otherwise (I) and (II) would be
+ * ; incorrectly deemed equivalent.
+ * if r9 == 0 goto <exit>
+ */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_9, 0),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_9, 0, 1),
+ /* r8 = *r8 ; read map value via r8, this is not safe
+ * r0 = *r8 ; because r8 might be not equal to r9.
+ */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_8, BPF_REG_8, 0),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_8, 0),
+ /* exit 0 */
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .flags = BPF_F_TEST_STATE_FREQ,
+ .fixup_map_hash_8b = { 3, 9 },
+ .result = REJECT,
+ .errstr = "R8 invalid mem access 'map_value_or_null'",
+ .result_unpriv = REJECT,
+ .errstr_unpriv = "",
+ .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
diff --git a/tools/testing/selftests/bpf/verifier/ctx_sk_lookup.c b/tools/testing/selftests/bpf/verifier/ctx_sk_lookup.c
new file mode 100644
index 0000000000..a2b006e2fd
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/ctx_sk_lookup.c
@@ -0,0 +1,532 @@
+{
+ "valid 1,2,4,8-byte reads from bpf_sk_lookup",
+ .insns = {
+ /* 1-byte read from family field */
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, family)),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, family) + 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, family) + 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, family) + 3),
+ /* 2-byte read from family field */
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, family)),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, family) + 2),
+ /* 4-byte read from family field */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, family)),
+
+ /* 1-byte read from protocol field */
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, protocol)),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, protocol) + 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, protocol) + 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, protocol) + 3),
+ /* 2-byte read from protocol field */
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, protocol)),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, protocol) + 2),
+ /* 4-byte read from protocol field */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, protocol)),
+
+ /* 1-byte read from remote_ip4 field */
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip4)),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip4) + 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip4) + 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip4) + 3),
+ /* 2-byte read from remote_ip4 field */
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip4)),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip4) + 2),
+ /* 4-byte read from remote_ip4 field */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip4)),
+
+ /* 1-byte read from remote_ip6 field */
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6)),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 3),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 4),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 5),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 6),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 7),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 8),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 9),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 10),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 11),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 12),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 13),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 14),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 15),
+ /* 2-byte read from remote_ip6 field */
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6)),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 2),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 4),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 6),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 8),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 10),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 12),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 14),
+ /* 4-byte read from remote_ip6 field */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 4),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 8),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6) + 12),
+
+ /* 1-byte read from remote_port field */
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_port)),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_port) + 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_port) + 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_port) + 3),
+ /* 2-byte read from remote_port field */
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_port)),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_port) + 2),
+ /* 4-byte read from remote_port field */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_port)),
+
+ /* 1-byte read from local_ip4 field */
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip4)),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip4) + 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip4) + 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip4) + 3),
+ /* 2-byte read from local_ip4 field */
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip4)),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip4) + 2),
+ /* 4-byte read from local_ip4 field */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip4)),
+
+ /* 1-byte read from local_ip6 field */
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6)),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 3),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 4),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 5),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 6),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 7),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 8),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 9),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 10),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 11),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 12),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 13),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 14),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 15),
+ /* 2-byte read from local_ip6 field */
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6)),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 2),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 4),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 6),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 8),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 10),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 12),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 14),
+ /* 4-byte read from local_ip6 field */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 4),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 8),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6) + 12),
+
+ /* 1-byte read from local_port field */
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_port)),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_port) + 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_port) + 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_port) + 3),
+ /* 2-byte read from local_port field */
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_port)),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_port) + 2),
+ /* 4-byte read from local_port field */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_port)),
+
+ /* 1-byte read from ingress_ifindex field */
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, ingress_ifindex)),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, ingress_ifindex) + 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, ingress_ifindex) + 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, ingress_ifindex) + 3),
+ /* 2-byte read from ingress_ifindex field */
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, ingress_ifindex)),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, ingress_ifindex) + 2),
+ /* 4-byte read from ingress_ifindex field */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, ingress_ifindex)),
+
+ /* 8-byte read from sk field */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, sk)),
+
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+ .runs = -1,
+},
+/* invalid 8-byte reads from a 4-byte fields in bpf_sk_lookup */
+{
+ "invalid 8-byte read from bpf_sk_lookup family field",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, family)),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+ "invalid 8-byte read from bpf_sk_lookup protocol field",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, protocol)),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "invalid 8-byte read from bpf_sk_lookup remote_ip4 field",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip4)),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+ "invalid 8-byte read from bpf_sk_lookup remote_ip6 field",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_ip6)),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "invalid 8-byte read from bpf_sk_lookup remote_port field",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, remote_port)),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "invalid 8-byte read from bpf_sk_lookup local_ip4 field",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip4)),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+ "invalid 8-byte read from bpf_sk_lookup local_ip6 field",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_ip6)),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "invalid 8-byte read from bpf_sk_lookup local_port field",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, local_port)),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "invalid 8-byte read from bpf_sk_lookup ingress_ifindex field",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, ingress_ifindex)),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+/* invalid 1,2,4-byte reads from 8-byte fields in bpf_sk_lookup */
+{
+ "invalid 4-byte read from bpf_sk_lookup sk field",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, sk)),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+ "invalid 2-byte read from bpf_sk_lookup sk field",
+ .insns = {
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, sk)),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+ "invalid 1-byte read from bpf_sk_lookup sk field",
+ .insns = {
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, sk)),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+},
+/* out of bounds and unaligned reads from bpf_sk_lookup */
+{
+ "invalid 4-byte read past end of bpf_sk_lookup",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ sizeof(struct bpf_sk_lookup)),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+ "invalid 4-byte unaligned read from bpf_sk_lookup at odd offset",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 1),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "invalid 4-byte unaligned read from bpf_sk_lookup at even offset",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 2),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+/* in-bound and out-of-bound writes to bpf_sk_lookup */
+{
+ "invalid 8-byte write to bpf_sk_lookup",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0xcafe4a11U),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+ "invalid 4-byte write to bpf_sk_lookup",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0xcafe4a11U),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+ "invalid 2-byte write to bpf_sk_lookup",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0xcafe4a11U),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 0),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+ "invalid 1-byte write to bpf_sk_lookup",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0xcafe4a11U),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+ "invalid 4-byte write past end of bpf_sk_lookup",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0xcafe4a11U),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ sizeof(struct bpf_sk_lookup)),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+ .expected_attach_type = BPF_SK_LOOKUP,
+},
diff --git a/tools/testing/selftests/bpf/verifier/ctx_skb.c b/tools/testing/selftests/bpf/verifier/ctx_skb.c
new file mode 100644
index 0000000000..0b394a7f7a
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/ctx_skb.c
@@ -0,0 +1,1195 @@
+{
+ "access skb fields ok",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, len)),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, mark)),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, pkt_type)),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, queue_mapping)),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, protocol)),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, vlan_present)),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, vlan_tci)),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, napi_id)),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "access skb fields bad1",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -4),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "access skb fields bad2",
+ .insns = {
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 9),
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, pkt_type)),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_hash_8b = { 4 },
+ .errstr = "different pointers",
+ .errstr_unpriv = "R1 pointer comparison",
+ .result = REJECT,
+},
+{
+ "access skb fields bad3",
+ .insns = {
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, pkt_type)),
+ BPF_EXIT_INSN(),
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, -12),
+ },
+ .fixup_map_hash_8b = { 6 },
+ .errstr = "different pointers",
+ .errstr_unpriv = "R1 pointer comparison",
+ .result = REJECT,
+},
+{
+ "access skb fields bad4",
+ .insns = {
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 3),
+ BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+ offsetof(struct __sk_buff, len)),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, -13),
+ },
+ .fixup_map_hash_8b = { 7 },
+ .errstr = "different pointers",
+ .errstr_unpriv = "R1 pointer comparison",
+ .result = REJECT,
+},
+{
+ "invalid access __sk_buff family",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, family)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "invalid access __sk_buff remote_ip4",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "invalid access __sk_buff local_ip4",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "invalid access __sk_buff remote_ip6",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_ip6)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "invalid access __sk_buff local_ip6",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_ip6)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "invalid access __sk_buff remote_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "invalid access __sk_buff remote_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "valid access __sk_buff family",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, family)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+ "valid access __sk_buff remote_ip4",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+ "valid access __sk_buff local_ip4",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+ "valid access __sk_buff remote_ip6",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_ip6[0])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_ip6[1])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_ip6[2])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_ip6[3])),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+ "valid access __sk_buff local_ip6",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_ip6[0])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_ip6[1])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_ip6[2])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_ip6[3])),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+ "valid access __sk_buff remote_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_port)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+ "valid access __sk_buff remote_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_port)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+ "invalid access of tc_classid for SK_SKB",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, tc_classid)),
+ BPF_EXIT_INSN(),
+ },
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+ .errstr = "invalid bpf_context access",
+},
+{
+ "invalid access of skb->mark for SK_SKB",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, mark)),
+ BPF_EXIT_INSN(),
+ },
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+ .errstr = "invalid bpf_context access",
+},
+{
+ "check skb->mark is not writeable by SK_SKB",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, mark)),
+ BPF_EXIT_INSN(),
+ },
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+ .errstr = "invalid bpf_context access",
+},
+{
+ "check skb->tc_index is writeable by SK_SKB",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, tc_index)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+ "check skb->priority is writeable by SK_SKB",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, priority)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+ "direct packet read for SK_SKB",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+ "direct packet write for SK_SKB",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
+ BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+ "overlapping checks for direct packet access SK_SKB",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+ offsetof(struct __sk_buff, data_end)),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+ "check skb->mark is not writeable by sockets",
+ .insns = {
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+ offsetof(struct __sk_buff, mark)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .errstr_unpriv = "R1 leaks addr",
+ .result = REJECT,
+},
+{
+ "check skb->tc_index is not writeable by sockets",
+ .insns = {
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+ offsetof(struct __sk_buff, tc_index)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .errstr_unpriv = "R1 leaks addr",
+ .result = REJECT,
+},
+{
+ "check cb access: byte",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[0])),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[0]) + 1),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[0]) + 2),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[0]) + 3),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[1])),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[1]) + 1),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[1]) + 2),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[1]) + 3),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[2])),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[2]) + 1),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[2]) + 2),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[2]) + 3),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[3])),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[3]) + 1),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[3]) + 2),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[3]) + 3),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[4])),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[4]) + 1),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[4]) + 2),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[4]) + 3),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[0])),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[0]) + 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[0]) + 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[0]) + 3),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[1])),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[1]) + 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[1]) + 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[1]) + 3),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[2])),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[2]) + 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[2]) + 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[2]) + 3),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[3])),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[3]) + 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[3]) + 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[3]) + 3),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[4])),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[4]) + 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[4]) + 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[4]) + 3),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "__sk_buff->hash, offset 0, byte store not permitted",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, hash)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "__sk_buff->tc_index, offset 3, byte store not permitted",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, tc_index) + 3),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "check skb->hash byte load permitted",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hash)),
+#else
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hash) + 3),
+#endif
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "check skb->hash byte load permitted 1",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hash) + 1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "check skb->hash byte load permitted 2",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hash) + 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "check skb->hash byte load permitted 3",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hash) + 3),
+#else
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hash)),
+#endif
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "check cb access: byte, wrong type",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[0])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
+},
+{
+ "check cb access: half",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[0])),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[0]) + 2),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[1])),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[1]) + 2),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[2])),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[2]) + 2),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[3])),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[3]) + 2),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[4])),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[4]) + 2),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[0])),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[0]) + 2),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[1])),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[1]) + 2),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[2])),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[2]) + 2),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[3])),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[3]) + 2),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[4])),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[4]) + 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "check cb access: half, unaligned",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[0]) + 1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "misaligned context access",
+ .result = REJECT,
+ .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+},
+{
+ "check __sk_buff->hash, offset 0, half store not permitted",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, hash)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "check __sk_buff->tc_index, offset 2, half store not permitted",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, tc_index) + 2),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "check skb->hash half load permitted",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hash)),
+#else
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hash) + 2),
+#endif
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "check skb->hash half load permitted 2",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hash) + 2),
+#else
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hash)),
+#endif
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "check skb->hash half load not permitted, unaligned 1",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hash) + 1),
+#else
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hash) + 3),
+#endif
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "check skb->hash half load not permitted, unaligned 3",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hash) + 3),
+#else
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hash) + 1),
+#endif
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "check cb access: half, wrong type",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[0])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
+},
+{
+ "check cb access: word",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[0])),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[1])),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[2])),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[3])),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[4])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[0])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[1])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[2])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[3])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[4])),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "check cb access: word, unaligned 1",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[0]) + 2),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "misaligned context access",
+ .result = REJECT,
+ .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+},
+{
+ "check cb access: word, unaligned 2",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[4]) + 1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "misaligned context access",
+ .result = REJECT,
+ .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+},
+{
+ "check cb access: word, unaligned 3",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[4]) + 2),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "misaligned context access",
+ .result = REJECT,
+ .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+},
+{
+ "check cb access: word, unaligned 4",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[4]) + 3),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "misaligned context access",
+ .result = REJECT,
+ .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+},
+{
+ "check cb access: double",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[0])),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[2])),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[0])),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[2])),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "check cb access: double, unaligned 1",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[1])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "misaligned context access",
+ .result = REJECT,
+ .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+},
+{
+ "check cb access: double, unaligned 2",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[3])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "misaligned context access",
+ .result = REJECT,
+ .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+},
+{
+ "check cb access: double, oob 1",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[4])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "check cb access: double, oob 2",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[4])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "check __sk_buff->ifindex dw store not permitted",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, ifindex)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "check __sk_buff->ifindex dw load not permitted",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, ifindex)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "check cb access: double, wrong type",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[0])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
+},
+{
+ "check out of range skb->cb access",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[0]) + 256),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .errstr_unpriv = "",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SCHED_ACT,
+},
+{
+ "write skb fields from socket prog",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[4])),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, mark)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, tc_index)),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[0])),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[2])),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .errstr_unpriv = "R1 leaks addr",
+ .result_unpriv = REJECT,
+},
+{
+ "write skb fields from tc_cls_act prog",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, cb[0])),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, mark)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, tc_index)),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, tc_index)),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, cb[3])),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, tstamp)),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, tstamp)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
+{
+ "check skb->data half load not permitted",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, data)),
+#else
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, data) + 2),
+#endif
+ BPF_EXIT_INSN(),
+ },
+ .result = REJECT,
+ .errstr = "invalid bpf_context access",
+},
+{
+ "read gso_segs from CGROUP_SKB",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, gso_segs)),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+ "read gso_segs from CGROUP_SKB",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+ offsetof(struct __sk_buff, gso_segs)),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+ "write gso_segs from CGROUP_SKB",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, gso_segs)),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = REJECT,
+ .result_unpriv = REJECT,
+ .errstr = "invalid bpf_context access off=164 size=4",
+ .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+ "read gso_segs from CLS",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, gso_segs)),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
+{
+ "read gso_size from CGROUP_SKB",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, gso_size)),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+ "read gso_size from CGROUP_SKB",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+ offsetof(struct __sk_buff, gso_size)),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+ "write gso_size from CGROUP_SKB",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, gso_size)),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = REJECT,
+ .result_unpriv = REJECT,
+ .errstr = "invalid bpf_context access off=176 size=4",
+ .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+ "read gso_size from CLS",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, gso_size)),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
+{
+ "padding after gso_size is not accessible",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetofend(struct __sk_buff, gso_size)),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = REJECT,
+ .result_unpriv = REJECT,
+ .errstr = "invalid bpf_context access off=180 size=4",
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
+{
+ "read hwtstamp from CGROUP_SKB",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hwtstamp)),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+ "read hwtstamp from CGROUP_SKB",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1,
+ offsetof(struct __sk_buff, hwtstamp)),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+ "write hwtstamp from CGROUP_SKB",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct __sk_buff, hwtstamp)),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = REJECT,
+ .result_unpriv = REJECT,
+ .errstr = "invalid bpf_context access off=184 size=8",
+ .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+ "read hwtstamp from CLS",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, hwtstamp)),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
+{
+ "check wire_len is not readable by sockets",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, wire_len)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+},
+{
+ "check wire_len is readable by tc classifier",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, wire_len)),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+},
+{
+ "check wire_len is not writable by tc classifier",
+ .insns = {
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+ offsetof(struct __sk_buff, wire_len)),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .errstr = "invalid bpf_context access",
+ .errstr_unpriv = "R1 leaks addr",
+ .result = REJECT,
+},
+{
+ "pkt > pkt_end taken check",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, // 0. r2 = *(u32 *)(r1 + data_end)
+ offsetof(struct __sk_buff, data_end)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, // 1. r4 = *(u32 *)(r1 + data)
+ offsetof(struct __sk_buff, data)),
+ BPF_MOV64_REG(BPF_REG_3, BPF_REG_4), // 2. r3 = r4
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 42), // 3. r3 += 42
+ BPF_MOV64_IMM(BPF_REG_1, 0), // 4. r1 = 0
+ BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_2, 2), // 5. if r3 > r2 goto 8
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 14), // 6. r4 += 14
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_4), // 7. r1 = r4
+ BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_2, 1), // 8. if r3 > r2 goto 10
+ BPF_LDX_MEM(BPF_H, BPF_REG_2, BPF_REG_1, 9), // 9. r2 = *(u8 *)(r1 + 9)
+ BPF_MOV64_IMM(BPF_REG_0, 0), // 10. r0 = 0
+ BPF_EXIT_INSN(), // 11. exit
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "pkt_end < pkt taken check",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, // 0. r2 = *(u32 *)(r1 + data_end)
+ offsetof(struct __sk_buff, data_end)),
+ BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, // 1. r4 = *(u32 *)(r1 + data)
+ offsetof(struct __sk_buff, data)),
+ BPF_MOV64_REG(BPF_REG_3, BPF_REG_4), // 2. r3 = r4
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 42), // 3. r3 += 42
+ BPF_MOV64_IMM(BPF_REG_1, 0), // 4. r1 = 0
+ BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_2, 2), // 5. if r3 > r2 goto 8
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 14), // 6. r4 += 14
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_4), // 7. r1 = r4
+ BPF_JMP_REG(BPF_JLT, BPF_REG_2, BPF_REG_3, 1), // 8. if r2 < r3 goto 10
+ BPF_LDX_MEM(BPF_H, BPF_REG_2, BPF_REG_1, 9), // 9. r2 = *(u8 *)(r1 + 9)
+ BPF_MOV64_IMM(BPF_REG_0, 0), // 10. r0 = 0
+ BPF_EXIT_INSN(), // 11. exit
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
diff --git a/tools/testing/selftests/bpf/verifier/dead_code.c b/tools/testing/selftests/bpf/verifier/dead_code.c
new file mode 100644
index 0000000000..ee454327e5
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/dead_code.c
@@ -0,0 +1,173 @@
+{
+ "dead code: start",
+ .insns = {
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 7),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, -4),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R9 !read_ok",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 7,
+},
+{
+ "dead code: mid 1",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 7),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 7,
+},
+{
+ "dead code: mid 2",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+ BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 4),
+ BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 7),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "dead code: end 1",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 7),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 1),
+ BPF_EXIT_INSN(),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 7,
+},
+{
+ "dead code: end 2",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 7),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 12),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 7,
+},
+{
+ "dead code: end 3",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 7),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 8, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 1),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 12),
+ BPF_JMP_IMM(BPF_JA, 0, 0, -5),
+ },
+ .result = ACCEPT,
+ .retval = 7,
+},
+{
+ "dead code: tail of main + func",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 7),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 8, 1),
+ BPF_EXIT_INSN(),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 12),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 7,
+},
+{
+ "dead code: tail of main + two functions",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 7),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 8, 1),
+ BPF_EXIT_INSN(),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 12),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 7,
+},
+{
+ "dead code: function in the middle and mid of another func",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_1, 7),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 12),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 7),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 7, 1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -5),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 7,
+},
+{
+ "dead code: middle of main before call",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_1, 2),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 2, 1),
+ BPF_MOV64_IMM(BPF_REG_1, 5),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 2,
+},
+{
+ "dead code: start of a function",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_1, 2),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 2,
+},
+{
+ "dead code: zero extension",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -4),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -4),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 0,
+},
diff --git a/tools/testing/selftests/bpf/verifier/direct_value_access.c b/tools/testing/selftests/bpf/verifier/direct_value_access.c
new file mode 100644
index 0000000000..c0648dc009
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/direct_value_access.c
@@ -0,0 +1,350 @@
+{
+ "direct map access, write test 1",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 0),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 4242),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "direct map access, write test 2",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 8),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 4242),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "direct map access, write test 3",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 8),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 4242),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "direct map access, write test 4",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 40),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 4242),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "direct map access, write test 5",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 32),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 4242),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "direct map access, write test 6",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 40),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 4, 4242),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = REJECT,
+ .errstr = "R1 min value is outside of the allowed memory range",
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "direct map access, write test 7",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, -1),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 4, 4242),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = REJECT,
+ .errstr = "direct value offset of 4294967295 is not allowed",
+},
+{
+ "direct map access, write test 8",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 1),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, -1, 4242),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "direct map access, write test 9",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 48),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 4242),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = REJECT,
+ .errstr = "invalid access to map value pointer",
+},
+{
+ "direct map access, write test 10",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 47),
+ BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 4),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "direct map access, write test 11",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 48),
+ BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 4),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = REJECT,
+ .errstr = "invalid access to map value pointer",
+},
+{
+ "direct map access, write test 12",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, (1<<29)),
+ BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 4),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = REJECT,
+ .errstr = "direct value offset of 536870912 is not allowed",
+},
+{
+ "direct map access, write test 13",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, (1<<29)-1),
+ BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 4),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = REJECT,
+ .errstr = "invalid access to map value pointer, value_size=48 off=536870911",
+},
+{
+ "direct map access, write test 14",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 47),
+ BPF_LD_MAP_VALUE(BPF_REG_2, 0, 46),
+ BPF_ST_MEM(BPF_H, BPF_REG_2, 0, 0xffff),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1, 3 },
+ .result = ACCEPT,
+ .retval = 0xff,
+},
+{
+ "direct map access, write test 15",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 46),
+ BPF_LD_MAP_VALUE(BPF_REG_2, 0, 46),
+ BPF_ST_MEM(BPF_H, BPF_REG_2, 0, 0xffff),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1, 3 },
+ .result = ACCEPT,
+ .retval = 0xffff,
+},
+{
+ "direct map access, write test 16",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 46),
+ BPF_LD_MAP_VALUE(BPF_REG_2, 0, 47),
+ BPF_ST_MEM(BPF_H, BPF_REG_2, 0, 0xffff),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1, 3 },
+ .result = REJECT,
+ .errstr = "invalid access to map value, value_size=48 off=47 size=2",
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "direct map access, write test 17",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 46),
+ BPF_LD_MAP_VALUE(BPF_REG_2, 0, 46),
+ BPF_ST_MEM(BPF_H, BPF_REG_2, 1, 0xffff),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1, 3 },
+ .result = REJECT,
+ .errstr = "invalid access to map value, value_size=48 off=47 size=2",
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "direct map access, write test 18",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 0),
+ BPF_ST_MEM(BPF_H, BPF_REG_1, 0, 42),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_small = { 1 },
+ .result = REJECT,
+ .errstr = "R1 min value is outside of the allowed memory range",
+},
+{
+ "direct map access, write test 19",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 0),
+ BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_small = { 1 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "direct map access, write test 20",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_VALUE(BPF_REG_1, 0, 1),
+ BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_small = { 1 },
+ .result = REJECT,
+ .errstr = "invalid access to map value pointer",
+},
+{
+ "direct map access, invalid insn test 1",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_VALUE, 0, 1, 0, 47),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = REJECT,
+ .errstr = "invalid bpf_ld_imm64 insn",
+},
+{
+ "direct map access, invalid insn test 2",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_VALUE, 1, 0, 0, 47),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = REJECT,
+ .errstr = "BPF_LD_IMM64 uses reserved fields",
+},
+{
+ "direct map access, invalid insn test 3",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_VALUE, ~0, 0, 0, 47),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = REJECT,
+ .errstr = "BPF_LD_IMM64 uses reserved fields",
+},
+{
+ "direct map access, invalid insn test 4",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_VALUE, 0, ~0, 0, 47),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = REJECT,
+ .errstr = "invalid bpf_ld_imm64 insn",
+},
+{
+ "direct map access, invalid insn test 5",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_VALUE, ~0, ~0, 0, 47),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = REJECT,
+ .errstr = "invalid bpf_ld_imm64 insn",
+},
+{
+ "direct map access, invalid insn test 6",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_FD, ~0, 0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = REJECT,
+ .errstr = "BPF_LD_IMM64 uses reserved fields",
+},
+{
+ "direct map access, invalid insn test 7",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_FD, 0, ~0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = REJECT,
+ .errstr = "invalid bpf_ld_imm64 insn",
+},
+{
+ "direct map access, invalid insn test 8",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_FD, ~0, ~0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = REJECT,
+ .errstr = "invalid bpf_ld_imm64 insn",
+},
+{
+ "direct map access, invalid insn test 9",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_FD, 0, 0, 0, 47),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 1 },
+ .result = REJECT,
+ .errstr = "unrecognized bpf_ld_imm64 insn",
+},
diff --git a/tools/testing/selftests/bpf/verifier/event_output.c b/tools/testing/selftests/bpf/verifier/event_output.c
new file mode 100644
index 0000000000..c5e8059804
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/event_output.c
@@ -0,0 +1,119 @@
+/* instructions used to output a skb based software event, produced
+ * from code snippet:
+ * struct TMP {
+ * uint64_t tmp;
+ * } tt;
+ * tt.tmp = 5;
+ * bpf_perf_event_output(skb, &connection_tracking_event_map, 0,
+ * &tt, sizeof(tt));
+ * return 1;
+ *
+ * the bpf assembly from llvm is:
+ * 0: b7 02 00 00 05 00 00 00 r2 = 5
+ * 1: 7b 2a f8 ff 00 00 00 00 *(u64 *)(r10 - 8) = r2
+ * 2: bf a4 00 00 00 00 00 00 r4 = r10
+ * 3: 07 04 00 00 f8 ff ff ff r4 += -8
+ * 4: 18 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 r2 = 0ll
+ * 6: b7 03 00 00 00 00 00 00 r3 = 0
+ * 7: b7 05 00 00 08 00 00 00 r5 = 8
+ * 8: 85 00 00 00 19 00 00 00 call 25
+ * 9: b7 00 00 00 01 00 00 00 r0 = 1
+ * 10: 95 00 00 00 00 00 00 00 exit
+ *
+ * The reason I put the code here instead of fill_helpers is that map fixup
+ * is against the insns, instead of filled prog.
+ */
+
+#define __PERF_EVENT_INSNS__ \
+ BPF_MOV64_IMM(BPF_REG_2, 5), \
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -8), \
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_10), \
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8), \
+ BPF_LD_MAP_FD(BPF_REG_2, 0), \
+ BPF_MOV64_IMM(BPF_REG_3, 0), \
+ BPF_MOV64_IMM(BPF_REG_5, 8), \
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, \
+ BPF_FUNC_perf_event_output), \
+ BPF_MOV64_IMM(BPF_REG_0, 1), \
+ BPF_EXIT_INSN(),
+{
+ "perfevent for sockops",
+ .insns = { __PERF_EVENT_INSNS__ },
+ .prog_type = BPF_PROG_TYPE_SOCK_OPS,
+ .fixup_map_event_output = { 4 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "perfevent for tc",
+ .insns = { __PERF_EVENT_INSNS__ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_event_output = { 4 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "perfevent for lwt out",
+ .insns = { __PERF_EVENT_INSNS__ },
+ .prog_type = BPF_PROG_TYPE_LWT_OUT,
+ .fixup_map_event_output = { 4 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "perfevent for xdp",
+ .insns = { __PERF_EVENT_INSNS__ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .fixup_map_event_output = { 4 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "perfevent for socket filter",
+ .insns = { __PERF_EVENT_INSNS__ },
+ .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+ .fixup_map_event_output = { 4 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "perfevent for sk_skb",
+ .insns = { __PERF_EVENT_INSNS__ },
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+ .fixup_map_event_output = { 4 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "perfevent for cgroup skb",
+ .insns = { __PERF_EVENT_INSNS__ },
+ .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+ .fixup_map_event_output = { 4 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "perfevent for cgroup dev",
+ .insns = { __PERF_EVENT_INSNS__ },
+ .prog_type = BPF_PROG_TYPE_CGROUP_DEVICE,
+ .fixup_map_event_output = { 4 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "perfevent for cgroup sysctl",
+ .insns = { __PERF_EVENT_INSNS__ },
+ .prog_type = BPF_PROG_TYPE_CGROUP_SYSCTL,
+ .fixup_map_event_output = { 4 },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "perfevent for cgroup sockopt",
+ .insns = { __PERF_EVENT_INSNS__ },
+ .prog_type = BPF_PROG_TYPE_CGROUP_SOCKOPT,
+ .expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+ .fixup_map_event_output = { 4 },
+ .result = ACCEPT,
+ .retval = 1,
+},
diff --git a/tools/testing/selftests/bpf/verifier/jit.c b/tools/testing/selftests/bpf/verifier/jit.c
new file mode 100644
index 0000000000..8bf37e5207
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/jit.c
@@ -0,0 +1,218 @@
+{
+ "jit: lsh, rsh, arsh by 1",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_MOV64_IMM(BPF_REG_1, 0xff),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 1),
+ BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 1),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x3fc, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 1),
+ BPF_ALU32_IMM(BPF_RSH, BPF_REG_1, 1),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0xff, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_IMM(BPF_ARSH, BPF_REG_1, 1),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x7f, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 2,
+},
+{
+ "jit: lsh, rsh, arsh by reg",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_MOV64_IMM(BPF_REG_4, 1),
+ BPF_MOV64_IMM(BPF_REG_1, 0xff),
+ BPF_ALU64_REG(BPF_LSH, BPF_REG_1, BPF_REG_0),
+ BPF_ALU32_REG(BPF_LSH, BPF_REG_1, BPF_REG_4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x3fc, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_REG(BPF_RSH, BPF_REG_1, BPF_REG_4),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_1),
+ BPF_ALU32_REG(BPF_RSH, BPF_REG_4, BPF_REG_0),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_4, 0xff, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_REG(BPF_ARSH, BPF_REG_4, BPF_REG_4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_4, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 2,
+},
+{
+ "jit: mov32 for ldimm64, 1",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_LD_IMM64(BPF_REG_1, 0xfeffffffffffffffULL),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 32),
+ BPF_LD_IMM64(BPF_REG_2, 0xfeffffffULL),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 2,
+},
+{
+ "jit: mov32 for ldimm64, 2",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_IMM64(BPF_REG_1, 0x1ffffffffULL),
+ BPF_LD_IMM64(BPF_REG_2, 0xffffffffULL),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 2,
+},
+{
+ "jit: various mul tests",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_2, 0xeeff0d413122ULL),
+ BPF_LD_IMM64(BPF_REG_0, 0xfefefeULL),
+ BPF_LD_IMM64(BPF_REG_1, 0xefefefULL),
+ BPF_ALU64_REG(BPF_MUL, BPF_REG_0, BPF_REG_1),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_2, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LD_IMM64(BPF_REG_3, 0xfefefeULL),
+ BPF_ALU64_REG(BPF_MUL, BPF_REG_3, BPF_REG_1),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_3, BPF_REG_2, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LD_IMM64(BPF_REG_3, 0xfefefeULL),
+ BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, 0xefefef),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_3, BPF_REG_2, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV32_REG(BPF_REG_2, BPF_REG_2),
+ BPF_LD_IMM64(BPF_REG_0, 0xfefefeULL),
+ BPF_ALU32_REG(BPF_MUL, BPF_REG_0, BPF_REG_1),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_2, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LD_IMM64(BPF_REG_3, 0xfefefeULL),
+ BPF_ALU32_REG(BPF_MUL, BPF_REG_3, BPF_REG_1),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_3, BPF_REG_2, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LD_IMM64(BPF_REG_3, 0xfefefeULL),
+ BPF_ALU32_IMM(BPF_MUL, BPF_REG_3, 0xefefef),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_3, BPF_REG_2, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LD_IMM64(BPF_REG_0, 0xfefefeULL),
+ BPF_LD_IMM64(BPF_REG_2, 0x2ad4d4aaULL),
+ BPF_ALU32_IMM(BPF_MUL, BPF_REG_0, 0x2b),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_2, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LD_IMM64(BPF_REG_0, 0x952a7bbcULL),
+ BPF_LD_IMM64(BPF_REG_1, 0xfefefeULL),
+ BPF_LD_IMM64(BPF_REG_5, 0xeeff0d413122ULL),
+ BPF_ALU32_REG(BPF_MUL, BPF_REG_5, BPF_REG_1),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_5, BPF_REG_0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 2,
+},
+{
+ "jit: various div tests",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_2, 0xefeffeULL),
+ BPF_LD_IMM64(BPF_REG_0, 0xeeff0d413122ULL),
+ BPF_LD_IMM64(BPF_REG_1, 0xfefeeeULL),
+ BPF_ALU64_REG(BPF_DIV, BPF_REG_0, BPF_REG_1),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_2, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LD_IMM64(BPF_REG_3, 0xeeff0d413122ULL),
+ BPF_ALU64_IMM(BPF_DIV, BPF_REG_3, 0xfefeeeULL),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_3, BPF_REG_2, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LD_IMM64(BPF_REG_2, 0xaa93ULL),
+ BPF_ALU64_IMM(BPF_MOD, BPF_REG_1, 0xbeefULL),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LD_IMM64(BPF_REG_1, 0xfefeeeULL),
+ BPF_LD_IMM64(BPF_REG_3, 0xbeefULL),
+ BPF_ALU64_REG(BPF_MOD, BPF_REG_1, BPF_REG_3),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LD_IMM64(BPF_REG_2, 0x5ee1dULL),
+ BPF_LD_IMM64(BPF_REG_1, 0xfefeeeULL),
+ BPF_LD_IMM64(BPF_REG_3, 0x2bULL),
+ BPF_ALU32_REG(BPF_DIV, BPF_REG_1, BPF_REG_3),
+ BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_REG(BPF_DIV, BPF_REG_1, BPF_REG_1),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_REG(BPF_MOD, BPF_REG_2, BPF_REG_2),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 2,
+},
+{
+ "jit: jsgt, jslt",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_1, 0x80000000ULL),
+ BPF_LD_IMM64(BPF_REG_2, 0x0ULL),
+ BPF_JMP_REG(BPF_JSGT, BPF_REG_1, BPF_REG_2, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+
+ BPF_JMP_REG(BPF_JSLT, BPF_REG_2, BPF_REG_1, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 2,
+},
+{
+ "jit: torturous jumps, imm8 nop jmp and pure jump padding",
+ .insns = { },
+ .fill_helper = bpf_fill_torturous_jumps,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "jit: torturous jumps, imm32 nop jmp and jmp_cond padding",
+ .insns = { },
+ .fill_helper = bpf_fill_torturous_jumps,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 2,
+},
+{
+ "jit: torturous jumps in subprog",
+ .insns = { },
+ .fill_helper = bpf_fill_torturous_jumps,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 3,
+},
diff --git a/tools/testing/selftests/bpf/verifier/jmp32.c b/tools/testing/selftests/bpf/verifier/jmp32.c
new file mode 100644
index 0000000000..43776f6f92
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/jmp32.c
@@ -0,0 +1,895 @@
+{
+ "jset32: BPF_K",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ /* reg, high bits shouldn't be tested */
+ BPF_JMP32_IMM(BPF_JSET, BPF_REG_7, -2, 1),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+ BPF_EXIT_INSN(),
+
+ BPF_JMP32_IMM(BPF_JSET, BPF_REG_7, 1, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 0,
+ .data64 = { 1ULL << 63, }
+ },
+ { .retval = 2,
+ .data64 = { 1, }
+ },
+ { .retval = 2,
+ .data64 = { 1ULL << 63 | 1, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jset32: BPF_X",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_LD_IMM64(BPF_REG_8, 0x8000000000000000),
+ BPF_JMP32_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+ BPF_EXIT_INSN(),
+
+ BPF_LD_IMM64(BPF_REG_8, 0x8000000000000001),
+ BPF_JMP32_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 0,
+ .data64 = { 1ULL << 63, }
+ },
+ { .retval = 2,
+ .data64 = { 1, }
+ },
+ { .retval = 2,
+ .data64 = { 1ULL << 63 | 1, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jset32: ignores upper bits",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_LD_IMM64(BPF_REG_7, 0x8000000000000000),
+ BPF_LD_IMM64(BPF_REG_8, 0x8000000000000000),
+ BPF_JMP_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP32_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 2,
+},
+{
+ "jset32: min/max deduction",
+ .insns = {
+ BPF_RAND_UEXT_R7,
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_JMP32_IMM(BPF_JSET, BPF_REG_7, 0x10, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP32_IMM(BPF_JGE, BPF_REG_7, 0x10, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R9 !read_ok",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+},
+{
+ "jeq32: BPF_K",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_IMM(BPF_JEQ, BPF_REG_7, -1, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 2,
+ .retvals = {
+ { .retval = 0,
+ .data64 = { -2, }
+ },
+ { .retval = 2,
+ .data64 = { -1, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jeq32: BPF_X",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_LD_IMM64(BPF_REG_8, 0x7000000000000001),
+ BPF_JMP32_REG(BPF_JEQ, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 0,
+ .data64 = { 2, }
+ },
+ { .retval = 2,
+ .data64 = { 1, }
+ },
+ { .retval = 2,
+ .data64 = { 1ULL << 63 | 1, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jeq32: min/max deduction",
+ .insns = {
+ BPF_RAND_UEXT_R7,
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_JMP32_IMM(BPF_JEQ, BPF_REG_7, 0x10, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP32_IMM(BPF_JSGE, BPF_REG_7, 0xf, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R9 !read_ok",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+},
+{
+ "jne32: BPF_K",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_IMM(BPF_JNE, BPF_REG_7, -1, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 2,
+ .retvals = {
+ { .retval = 2,
+ .data64 = { 1, }
+ },
+ { .retval = 0,
+ .data64 = { -1, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jne32: BPF_X",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_LD_IMM64(BPF_REG_8, 0x8000000000000001),
+ BPF_JMP32_REG(BPF_JNE, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 0,
+ .data64 = { 1, }
+ },
+ { .retval = 2,
+ .data64 = { 2, }
+ },
+ { .retval = 2,
+ .data64 = { 1ULL << 63 | 2, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jne32: min/max deduction",
+ .insns = {
+ BPF_RAND_UEXT_R7,
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_JMP32_IMM(BPF_JNE, BPF_REG_7, 0x10, 1),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x10, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R9 !read_ok",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+},
+{
+ "jge32: BPF_K",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_IMM(BPF_JGE, BPF_REG_7, UINT_MAX - 1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 2,
+ .data64 = { UINT_MAX, }
+ },
+ { .retval = 2,
+ .data64 = { UINT_MAX - 1, }
+ },
+ { .retval = 0,
+ .data64 = { 0, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jge32: BPF_X",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LD_IMM64(BPF_REG_8, UINT_MAX | 1ULL << 32),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_REG(BPF_JGE, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 2,
+ .data64 = { UINT_MAX, }
+ },
+ { .retval = 0,
+ .data64 = { INT_MAX, }
+ },
+ { .retval = 0,
+ .data64 = { (UINT_MAX - 1) | 2ULL << 32, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jge32: min/max deduction",
+ .insns = {
+ BPF_RAND_UEXT_R7,
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
+ BPF_JMP32_REG(BPF_JGE, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP32_IMM(BPF_JGE, BPF_REG_7, 0x7ffffff0, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R0 invalid mem access 'scalar'",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 2,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jgt32: BPF_K",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_IMM(BPF_JGT, BPF_REG_7, UINT_MAX - 1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 2,
+ .data64 = { UINT_MAX, }
+ },
+ { .retval = 0,
+ .data64 = { UINT_MAX - 1, }
+ },
+ { .retval = 0,
+ .data64 = { 0, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jgt32: BPF_X",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LD_IMM64(BPF_REG_8, (UINT_MAX - 1) | 1ULL << 32),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_REG(BPF_JGT, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 2,
+ .data64 = { UINT_MAX, }
+ },
+ { .retval = 0,
+ .data64 = { UINT_MAX - 1, }
+ },
+ { .retval = 0,
+ .data64 = { (UINT_MAX - 1) | 2ULL << 32, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jgt32: min/max deduction",
+ .insns = {
+ BPF_RAND_UEXT_R7,
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
+ BPF_JMP32_REG(BPF_JGT, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JGT, BPF_REG_7, 0x7ffffff0, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R0 invalid mem access 'scalar'",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 2,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jle32: BPF_K",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_IMM(BPF_JLE, BPF_REG_7, INT_MAX, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 2,
+ .data64 = { INT_MAX - 1, }
+ },
+ { .retval = 0,
+ .data64 = { UINT_MAX, }
+ },
+ { .retval = 2,
+ .data64 = { INT_MAX, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jle32: BPF_X",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LD_IMM64(BPF_REG_8, (INT_MAX - 1) | 2ULL << 32),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_REG(BPF_JLE, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 0,
+ .data64 = { INT_MAX | 1ULL << 32, }
+ },
+ { .retval = 2,
+ .data64 = { INT_MAX - 2, }
+ },
+ { .retval = 0,
+ .data64 = { UINT_MAX, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jle32: min/max deduction",
+ .insns = {
+ BPF_RAND_UEXT_R7,
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
+ BPF_JMP32_REG(BPF_JLE, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP32_IMM(BPF_JLE, BPF_REG_7, 0x7ffffff0, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R0 invalid mem access 'scalar'",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 2,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jlt32: BPF_K",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_IMM(BPF_JLT, BPF_REG_7, INT_MAX, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 0,
+ .data64 = { INT_MAX, }
+ },
+ { .retval = 0,
+ .data64 = { UINT_MAX, }
+ },
+ { .retval = 2,
+ .data64 = { INT_MAX - 1, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jlt32: BPF_X",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LD_IMM64(BPF_REG_8, INT_MAX | 2ULL << 32),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_REG(BPF_JLT, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 0,
+ .data64 = { INT_MAX | 1ULL << 32, }
+ },
+ { .retval = 0,
+ .data64 = { UINT_MAX, }
+ },
+ { .retval = 2,
+ .data64 = { (INT_MAX - 1) | 3ULL << 32, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jlt32: min/max deduction",
+ .insns = {
+ BPF_RAND_UEXT_R7,
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
+ BPF_JMP32_REG(BPF_JLT, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JSLT, BPF_REG_7, 0x7ffffff0, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R0 invalid mem access 'scalar'",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 2,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jsge32: BPF_K",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_IMM(BPF_JSGE, BPF_REG_7, -1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 2,
+ .data64 = { 0, }
+ },
+ { .retval = 2,
+ .data64 = { -1, }
+ },
+ { .retval = 0,
+ .data64 = { -2, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jsge32: BPF_X",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LD_IMM64(BPF_REG_8, (__u32)-1 | 2ULL << 32),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_REG(BPF_JSGE, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 2,
+ .data64 = { -1, }
+ },
+ { .retval = 2,
+ .data64 = { 0x7fffffff | 1ULL << 32, }
+ },
+ { .retval = 0,
+ .data64 = { -2, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jsge32: min/max deduction",
+ .insns = {
+ BPF_RAND_UEXT_R7,
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
+ BPF_JMP32_REG(BPF_JSGE, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JSGE, BPF_REG_7, 0x7ffffff0, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R0 invalid mem access 'scalar'",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 2,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jsgt32: BPF_K",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_IMM(BPF_JSGT, BPF_REG_7, -1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 0,
+ .data64 = { (__u32)-2, }
+ },
+ { .retval = 0,
+ .data64 = { -1, }
+ },
+ { .retval = 2,
+ .data64 = { 1, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jsgt32: BPF_X",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LD_IMM64(BPF_REG_8, 0x7ffffffe | 1ULL << 32),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_REG(BPF_JSGT, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 0,
+ .data64 = { 0x7ffffffe, }
+ },
+ { .retval = 0,
+ .data64 = { 0x1ffffffffULL, }
+ },
+ { .retval = 2,
+ .data64 = { 0x7fffffff, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jsgt32: min/max deduction",
+ .insns = {
+ BPF_RAND_SEXT_R7,
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_LD_IMM64(BPF_REG_8, (__u32)(-2) | 1ULL << 32),
+ BPF_JMP32_REG(BPF_JSGT, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, -2, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R0 invalid mem access 'scalar'",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 2,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jsle32: BPF_K",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_IMM(BPF_JSLE, BPF_REG_7, -1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 2,
+ .data64 = { (__u32)-2, }
+ },
+ { .retval = 2,
+ .data64 = { -1, }
+ },
+ { .retval = 0,
+ .data64 = { 1, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jsle32: BPF_X",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LD_IMM64(BPF_REG_8, 0x7ffffffe | 1ULL << 32),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_REG(BPF_JSLE, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 2,
+ .data64 = { 0x7ffffffe, }
+ },
+ { .retval = 2,
+ .data64 = { (__u32)-1, }
+ },
+ { .retval = 0,
+ .data64 = { 0x7fffffff | 2ULL << 32, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jsle32: min/max deduction",
+ .insns = {
+ BPF_RAND_UEXT_R7,
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
+ BPF_JMP32_REG(BPF_JSLE, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JSLE, BPF_REG_7, 0x7ffffff0, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R0 invalid mem access 'scalar'",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 2,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jslt32: BPF_K",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_IMM(BPF_JSLT, BPF_REG_7, -1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 2,
+ .data64 = { (__u32)-2, }
+ },
+ { .retval = 0,
+ .data64 = { -1, }
+ },
+ { .retval = 0,
+ .data64 = { 1, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jslt32: BPF_X",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LD_IMM64(BPF_REG_8, 0x7fffffff | 1ULL << 32),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+ BPF_JMP32_REG(BPF_JSLT, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 3,
+ .retvals = {
+ { .retval = 2,
+ .data64 = { 0x7ffffffe, }
+ },
+ { .retval = 2,
+ .data64 = { 0xffffffff, }
+ },
+ { .retval = 0,
+ .data64 = { 0x7fffffff | 2ULL << 32, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jslt32: min/max deduction",
+ .insns = {
+ BPF_RAND_SEXT_R7,
+ BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+ BPF_LD_IMM64(BPF_REG_8, (__u32)(-1) | 1ULL << 32),
+ BPF_JMP32_REG(BPF_JSLT, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP32_IMM(BPF_JSLT, BPF_REG_7, -1, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R0 invalid mem access 'scalar'",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = 2,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jgt32: range bound deduction, reg op imm",
+ .insns = {
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+ BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+ BPF_EMIT_CALL(BPF_FUNC_get_cgroup_classid),
+ BPF_JMP32_IMM(BPF_JGT, BPF_REG_0, 1, 5),
+ BPF_MOV32_REG(BPF_REG_6, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_6, 32),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_6, 32),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_6),
+ BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_hash_48b = { 4 },
+ .result = ACCEPT,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jgt32: range bound deduction, reg1 op reg2, reg1 unknown",
+ .insns = {
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+ BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+ BPF_EMIT_CALL(BPF_FUNC_get_cgroup_classid),
+ BPF_MOV32_IMM(BPF_REG_2, 1),
+ BPF_JMP32_REG(BPF_JGT, BPF_REG_0, BPF_REG_2, 5),
+ BPF_MOV32_REG(BPF_REG_6, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_6, 32),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_6, 32),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_6),
+ BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_hash_48b = { 4 },
+ .result = ACCEPT,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jle32: range bound deduction, reg1 op reg2, reg2 unknown",
+ .insns = {
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+ BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+ BPF_EMIT_CALL(BPF_FUNC_get_cgroup_classid),
+ BPF_MOV32_IMM(BPF_REG_2, 1),
+ BPF_JMP32_REG(BPF_JLE, BPF_REG_2, BPF_REG_0, 5),
+ BPF_MOV32_REG(BPF_REG_6, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_6, 32),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_6, 32),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_6),
+ BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_hash_48b = { 4 },
+ .result = ACCEPT,
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jeq32/jne32: bounds checking",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_6, 563),
+ BPF_MOV64_IMM(BPF_REG_2, 0),
+ BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
+ BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
+ BPF_ALU32_REG(BPF_OR, BPF_REG_2, BPF_REG_6),
+ BPF_JMP32_IMM(BPF_JNE, BPF_REG_2, 8, 5),
+ BPF_JMP_IMM(BPF_JSGE, BPF_REG_2, 500, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 1,
+},
diff --git a/tools/testing/selftests/bpf/verifier/jset.c b/tools/testing/selftests/bpf/verifier/jset.c
new file mode 100644
index 0000000000..11fc68da73
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/jset.c
@@ -0,0 +1,169 @@
+{
+ "jset: functional",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+
+ /* reg, bit 63 or bit 0 set, taken */
+ BPF_LD_IMM64(BPF_REG_8, 0x8000000000000001),
+ BPF_JMP_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
+ BPF_EXIT_INSN(),
+
+ /* reg, bit 62, not taken */
+ BPF_LD_IMM64(BPF_REG_8, 0x4000000000000000),
+ BPF_JMP_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+ BPF_EXIT_INSN(),
+
+ /* imm, any bit set, taken */
+ BPF_JMP_IMM(BPF_JSET, BPF_REG_7, -1, 1),
+ BPF_EXIT_INSN(),
+
+ /* imm, bit 31 set, taken */
+ BPF_JMP_IMM(BPF_JSET, BPF_REG_7, 0x80000000, 1),
+ BPF_EXIT_INSN(),
+
+ /* all good - return r0 == 2 */
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .runs = 7,
+ .retvals = {
+ { .retval = 2,
+ .data64 = { (1ULL << 63) | (1U << 31) | (1U << 0), }
+ },
+ { .retval = 2,
+ .data64 = { (1ULL << 63) | (1U << 31), }
+ },
+ { .retval = 2,
+ .data64 = { (1ULL << 31) | (1U << 0), }
+ },
+ { .retval = 2,
+ .data64 = { (__u32)-1, }
+ },
+ { .retval = 2,
+ .data64 = { ~0x4000000000000000ULL, }
+ },
+ { .retval = 0,
+ .data64 = { 0, }
+ },
+ { .retval = 0,
+ .data64 = { ~0ULL, }
+ },
+ },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jset: sign-extend",
+ .insns = {
+ BPF_DIRECT_PKT_R2,
+ BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+
+ BPF_JMP_IMM(BPF_JSET, BPF_REG_7, 0x80000000, 1),
+ BPF_EXIT_INSN(),
+
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 2,
+ .data = { 1, 0, 0, 0, 0, 0, 0, 1, },
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "jset: known const compare",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+ .errstr_unpriv = "R9 !read_ok",
+ .result_unpriv = REJECT,
+ .retval = 1,
+ .result = ACCEPT,
+},
+{
+ "jset: known const compare bad",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+ .errstr_unpriv = "!read_ok",
+ .result_unpriv = REJECT,
+ .errstr = "!read_ok",
+ .result = REJECT,
+},
+{
+ "jset: unknown const compare taken",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+ BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+ .errstr_unpriv = "!read_ok",
+ .result_unpriv = REJECT,
+ .errstr = "!read_ok",
+ .result = REJECT,
+},
+{
+ "jset: unknown const compare not taken",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+ BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+ .errstr_unpriv = "!read_ok",
+ .result_unpriv = REJECT,
+ .errstr = "!read_ok",
+ .result = REJECT,
+},
+{
+ "jset: half-known const compare",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+ BPF_ALU64_IMM(BPF_OR, BPF_REG_0, 2),
+ BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 3, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+ .errstr_unpriv = "R9 !read_ok",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+},
+{
+ "jset: range",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ALU64_IMM(BPF_AND, BPF_REG_1, 0xff),
+ BPF_JMP_IMM(BPF_JSET, BPF_REG_1, 0xf0, 3),
+ BPF_JMP_IMM(BPF_JLT, BPF_REG_1, 0x10, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JSET, BPF_REG_1, 0x10, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0x10, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+ .errstr_unpriv = "R9 !read_ok",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/jump.c b/tools/testing/selftests/bpf/verifier/jump.c
new file mode 100644
index 0000000000..497fe17d2e
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/jump.c
@@ -0,0 +1,397 @@
+{
+ "jump test 1",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R1 pointer comparison",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+},
+{
+ "jump test 2",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 14),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 11),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 5),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R1 pointer comparison",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+},
+{
+ "jump test 3",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 19),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 15),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 11),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 7),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 3),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_delete_elem),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_hash_8b = { 24 },
+ .errstr_unpriv = "R1 pointer comparison",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+ .retval = -ENOENT,
+},
+{
+ "jump test 4",
+ .insns = {
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R1 pointer comparison",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+},
+{
+ "jump test 5",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr_unpriv = "R1 pointer comparison",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+},
+{
+ "jump test 6",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_MOV64_IMM(BPF_REG_1, 2),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ BPF_JMP_REG(BPF_JNE, BPF_REG_0, BPF_REG_1, 16),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, -20),
+ },
+ .result = ACCEPT,
+ .retval = 2,
+},
+{
+ "jump test 7",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 16),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_JMP_IMM(BPF_JA, 0, 0, -20),
+ },
+ .result = ACCEPT,
+ .retval = 3,
+},
+{
+ "jump test 8",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_MOV64_IMM(BPF_REG_1, 2),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ BPF_JMP_REG(BPF_JNE, BPF_REG_0, BPF_REG_1, 16),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_JMP_IMM(BPF_JA, 0, 0, -20),
+ },
+ .result = ACCEPT,
+ .retval = 3,
+},
+{
+ "jump/call test 9",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 16),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -20),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "jump out of range from insn 1 to 4",
+},
+{
+ "jump/call test 10",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 16),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -20),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "last insn is not an exit or jmp",
+},
+{
+ "jump/call test 11",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 3),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 26),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -31),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 3,
+},
+{
+ "jump & dead code elimination",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_MOV64_IMM(BPF_REG_3, 0),
+ BPF_ALU64_IMM(BPF_NEG, BPF_REG_3, 0),
+ BPF_ALU64_IMM(BPF_NEG, BPF_REG_3, 0),
+ BPF_ALU64_IMM(BPF_OR, BPF_REG_3, 32767),
+ BPF_JMP_IMM(BPF_JSGE, BPF_REG_3, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 0x8000, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, -32767),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_JMP_IMM(BPF_JLE, BPF_REG_3, 0, 1),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 2,
+},
diff --git a/tools/testing/selftests/bpf/verifier/junk_insn.c b/tools/testing/selftests/bpf/verifier/junk_insn.c
new file mode 100644
index 0000000000..89d690f199
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/junk_insn.c
@@ -0,0 +1,45 @@
+{
+ "junk insn",
+ .insns = {
+ BPF_RAW_INSN(0, 0, 0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "unknown opcode 00",
+ .result = REJECT,
+},
+{
+ "junk insn2",
+ .insns = {
+ BPF_RAW_INSN(1, 0, 0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "BPF_LDX uses reserved fields",
+ .result = REJECT,
+},
+{
+ "junk insn3",
+ .insns = {
+ BPF_RAW_INSN(-1, 0, 0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "unknown opcode ff",
+ .result = REJECT,
+},
+{
+ "junk insn4",
+ .insns = {
+ BPF_RAW_INSN(-1, -1, -1, -1, -1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "unknown opcode ff",
+ .result = REJECT,
+},
+{
+ "junk insn5",
+ .insns = {
+ BPF_RAW_INSN(0x7f, -1, -1, -1, -1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "BPF_ALU uses reserved fields",
+ .result = REJECT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/ld_abs.c b/tools/testing/selftests/bpf/verifier/ld_abs.c
new file mode 100644
index 0000000000..f6599d2ec2
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/ld_abs.c
@@ -0,0 +1,286 @@
+{
+ "ld_abs: check calling conv, r1",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_IMM(BPF_REG_1, 0),
+ BPF_LD_ABS(BPF_W, -0x200000),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "R1 !read_ok",
+ .result = REJECT,
+},
+{
+ "ld_abs: check calling conv, r2",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_IMM(BPF_REG_2, 0),
+ BPF_LD_ABS(BPF_W, -0x200000),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "R2 !read_ok",
+ .result = REJECT,
+},
+{
+ "ld_abs: check calling conv, r3",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_IMM(BPF_REG_3, 0),
+ BPF_LD_ABS(BPF_W, -0x200000),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "R3 !read_ok",
+ .result = REJECT,
+},
+{
+ "ld_abs: check calling conv, r4",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_IMM(BPF_REG_4, 0),
+ BPF_LD_ABS(BPF_W, -0x200000),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "R4 !read_ok",
+ .result = REJECT,
+},
+{
+ "ld_abs: check calling conv, r5",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_IMM(BPF_REG_5, 0),
+ BPF_LD_ABS(BPF_W, -0x200000),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "R5 !read_ok",
+ .result = REJECT,
+},
+{
+ "ld_abs: check calling conv, r7",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_MOV64_IMM(BPF_REG_7, 0),
+ BPF_LD_ABS(BPF_W, -0x200000),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "ld_abs: tests on r6 and skb data reload helper",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_LD_ABS(BPF_B, 0),
+ BPF_LD_ABS(BPF_H, 0),
+ BPF_LD_ABS(BPF_W, 0),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_6),
+ BPF_MOV64_IMM(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+ BPF_MOV64_IMM(BPF_REG_2, 1),
+ BPF_MOV64_IMM(BPF_REG_3, 2),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_vlan_push),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_7),
+ BPF_LD_ABS(BPF_B, 0),
+ BPF_LD_ABS(BPF_H, 0),
+ BPF_LD_ABS(BPF_W, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 42 /* ultimate return value */,
+},
+{
+ "ld_abs: invalid op 1",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_LD_ABS(BPF_DW, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "unknown opcode",
+},
+{
+ "ld_abs: invalid op 2",
+ .insns = {
+ BPF_MOV32_IMM(BPF_REG_0, 256),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_LD_IND(BPF_DW, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "unknown opcode",
+},
+{
+ "ld_abs: nmap reduced",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_LD_ABS(BPF_H, 12),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0x806, 28),
+ BPF_LD_ABS(BPF_H, 12),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0x806, 26),
+ BPF_MOV32_IMM(BPF_REG_0, 18),
+ BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -64),
+ BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_10, -64),
+ BPF_LD_IND(BPF_W, BPF_REG_7, 14),
+ BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -60),
+ BPF_MOV32_IMM(BPF_REG_0, 280971478),
+ BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -56),
+ BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_10, -56),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -60),
+ BPF_ALU32_REG(BPF_SUB, BPF_REG_0, BPF_REG_7),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 15),
+ BPF_LD_ABS(BPF_H, 12),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0x806, 13),
+ BPF_MOV32_IMM(BPF_REG_0, 22),
+ BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -56),
+ BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_10, -56),
+ BPF_LD_IND(BPF_H, BPF_REG_7, 14),
+ BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -52),
+ BPF_MOV32_IMM(BPF_REG_0, 17366),
+ BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -48),
+ BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_10, -48),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -52),
+ BPF_ALU32_REG(BPF_SUB, BPF_REG_0, BPF_REG_7),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+ BPF_MOV32_IMM(BPF_REG_0, 256),
+ BPF_EXIT_INSN(),
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .data = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x06, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0x10, 0xbf, 0x48, 0xd6, 0x43, 0xd6,
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 256,
+},
+{
+ "ld_abs: div + abs, test 1",
+ .insns = {
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
+ BPF_LD_ABS(BPF_B, 3),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_2, 2),
+ BPF_ALU32_REG(BPF_DIV, BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_8, BPF_REG_0),
+ BPF_LD_ABS(BPF_B, 4),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_0),
+ BPF_LD_IND(BPF_B, BPF_REG_8, -70),
+ BPF_EXIT_INSN(),
+ },
+ .data = {
+ 10, 20, 30, 40, 50,
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 10,
+},
+{
+ "ld_abs: div + abs, test 2",
+ .insns = {
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
+ BPF_LD_ABS(BPF_B, 3),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_2, 2),
+ BPF_ALU32_REG(BPF_DIV, BPF_REG_0, BPF_REG_2),
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_8, BPF_REG_0),
+ BPF_LD_ABS(BPF_B, 128),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_0),
+ BPF_LD_IND(BPF_B, BPF_REG_8, -70),
+ BPF_EXIT_INSN(),
+ },
+ .data = {
+ 10, 20, 30, 40, 50,
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 0,
+},
+{
+ "ld_abs: div + abs, test 3",
+ .insns = {
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_7, 0),
+ BPF_LD_ABS(BPF_B, 3),
+ BPF_ALU32_REG(BPF_DIV, BPF_REG_0, BPF_REG_7),
+ BPF_EXIT_INSN(),
+ },
+ .data = {
+ 10, 20, 30, 40, 50,
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 0,
+},
+{
+ "ld_abs: div + abs, test 4",
+ .insns = {
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_7, 0),
+ BPF_LD_ABS(BPF_B, 256),
+ BPF_ALU32_REG(BPF_DIV, BPF_REG_0, BPF_REG_7),
+ BPF_EXIT_INSN(),
+ },
+ .data = {
+ 10, 20, 30, 40, 50,
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 0,
+},
+{
+ "ld_abs: vlan + abs, test 1",
+ .insns = { },
+ .data = {
+ 0x34,
+ },
+ .fill_helper = bpf_fill_ld_abs_vlan_push_pop,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 0xbef,
+},
+{
+ "ld_abs: vlan + abs, test 2",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+ BPF_LD_ABS(BPF_B, 0),
+ BPF_LD_ABS(BPF_H, 0),
+ BPF_LD_ABS(BPF_W, 0),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_6),
+ BPF_MOV64_IMM(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+ BPF_MOV64_IMM(BPF_REG_2, 1),
+ BPF_MOV64_IMM(BPF_REG_3, 2),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+ BPF_FUNC_skb_vlan_push),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_7),
+ BPF_LD_ABS(BPF_B, 0),
+ BPF_LD_ABS(BPF_H, 0),
+ BPF_LD_ABS(BPF_W, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_EXIT_INSN(),
+ },
+ .data = {
+ 0x34,
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 42,
+},
+{
+ "ld_abs: jump around ld_abs",
+ .insns = { },
+ .data = {
+ 10, 11,
+ },
+ .fill_helper = bpf_fill_jump_around_ld_abs,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 10,
+},
diff --git a/tools/testing/selftests/bpf/verifier/ld_dw.c b/tools/testing/selftests/bpf/verifier/ld_dw.c
new file mode 100644
index 0000000000..0f18e62f00
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/ld_dw.c
@@ -0,0 +1,45 @@
+{
+ "ld_dw: xor semi-random 64 bit imms, test 1",
+ .insns = { },
+ .data = { },
+ .fill_helper = bpf_fill_rand_ld_dw,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 4090,
+},
+{
+ "ld_dw: xor semi-random 64 bit imms, test 2",
+ .insns = { },
+ .data = { },
+ .fill_helper = bpf_fill_rand_ld_dw,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 2047,
+},
+{
+ "ld_dw: xor semi-random 64 bit imms, test 3",
+ .insns = { },
+ .data = { },
+ .fill_helper = bpf_fill_rand_ld_dw,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 511,
+},
+{
+ "ld_dw: xor semi-random 64 bit imms, test 4",
+ .insns = { },
+ .data = { },
+ .fill_helper = bpf_fill_rand_ld_dw,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 5,
+},
+{
+ "ld_dw: xor semi-random 64 bit imms, test 5",
+ .insns = { },
+ .data = { },
+ .fill_helper = bpf_fill_rand_ld_dw,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 1000000 - 6,
+},
diff --git a/tools/testing/selftests/bpf/verifier/ld_imm64.c b/tools/testing/selftests/bpf/verifier/ld_imm64.c
new file mode 100644
index 0000000000..78f19c255f
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/ld_imm64.c
@@ -0,0 +1,146 @@
+{
+ "test1 ld_imm64",
+ .insns = {
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+ BPF_LD_IMM64(BPF_REG_0, 0),
+ BPF_LD_IMM64(BPF_REG_0, 0),
+ BPF_LD_IMM64(BPF_REG_0, 1),
+ BPF_LD_IMM64(BPF_REG_0, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "jump into the middle of ldimm64 insn 1",
+ .errstr_unpriv = "jump into the middle of ldimm64 insn 1",
+ .result = REJECT,
+},
+{
+ "test2 ld_imm64",
+ .insns = {
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+ BPF_LD_IMM64(BPF_REG_0, 0),
+ BPF_LD_IMM64(BPF_REG_0, 0),
+ BPF_LD_IMM64(BPF_REG_0, 1),
+ BPF_LD_IMM64(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "jump into the middle of ldimm64 insn 1",
+ .errstr_unpriv = "jump into the middle of ldimm64 insn 1",
+ .result = REJECT,
+},
+{
+ "test3 ld_imm64",
+ .insns = {
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
+ BPF_LD_IMM64(BPF_REG_0, 0),
+ BPF_LD_IMM64(BPF_REG_0, 0),
+ BPF_LD_IMM64(BPF_REG_0, 1),
+ BPF_LD_IMM64(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_ld_imm64 insn",
+ .result = REJECT,
+},
+{
+ "test4 ld_imm64",
+ .insns = {
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_ld_imm64 insn",
+ .result = REJECT,
+},
+{
+ "test6 ld_imm64",
+ .insns = {
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
+ BPF_RAW_INSN(0, 0, 0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "test7 ld_imm64",
+ .insns = {
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
+ BPF_RAW_INSN(0, 0, 0, 0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "test8 ld_imm64",
+ .insns = {
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 1, 1),
+ BPF_RAW_INSN(0, 0, 0, 0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "uses reserved fields",
+ .result = REJECT,
+},
+{
+ "test9 ld_imm64",
+ .insns = {
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
+ BPF_RAW_INSN(0, 0, 0, 1, 1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_ld_imm64 insn",
+ .result = REJECT,
+},
+{
+ "test10 ld_imm64",
+ .insns = {
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
+ BPF_RAW_INSN(0, BPF_REG_1, 0, 0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_ld_imm64 insn",
+ .result = REJECT,
+},
+{
+ "test11 ld_imm64",
+ .insns = {
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
+ BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_ld_imm64 insn",
+ .result = REJECT,
+},
+{
+ "test12 ld_imm64",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1),
+ BPF_RAW_INSN(0, 0, 0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "not pointing to valid bpf_map",
+ .result = REJECT,
+},
+{
+ "test13 ld_imm64",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1),
+ BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_ld_imm64 insn",
+ .result = REJECT,
+},
+{
+ "test14 ld_imm64: reject 2nd imm != 0",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_1,
+ BPF_PSEUDO_MAP_FD, 0, 0),
+ BPF_RAW_INSN(0, 0, 0, 0, 0xfefefe),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_hash_48b = { 1 },
+ .errstr = "unrecognized bpf_ld_imm64 insn",
+ .result = REJECT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/map_kptr.c b/tools/testing/selftests/bpf/verifier/map_kptr.c
new file mode 100644
index 0000000000..d25c3e9605
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/map_kptr.c
@@ -0,0 +1,444 @@
+/* Common tests */
+{
+ "map_kptr: BPF_ST imm != 0",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "BPF_ST imm must be 0 when storing to kptr at off=0",
+},
+{
+ "map_kptr: size != bpf_size_to_bytes(BPF_DW)",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ST_MEM(BPF_W, BPF_REG_0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "kptr access size must be BPF_DW",
+},
+{
+ "map_kptr: map_value non-const var_off",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, 0),
+ BPF_JMP_IMM(BPF_JLE, BPF_REG_2, 4, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "kptr access cannot have variable offset",
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "map_kptr: bpf_kptr_xchg non-const var_off",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, 0),
+ BPF_JMP_IMM(BPF_JLE, BPF_REG_2, 4, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_3),
+ BPF_MOV64_IMM(BPF_REG_2, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "R1 doesn't have constant offset. kptr has to be at the constant offset",
+},
+{
+ "map_kptr: unaligned boundary load/store",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 7),
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "kptr access misaligned expected=0 off=7",
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+ "map_kptr: reject var_off != 0",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
+ BPF_JMP_IMM(BPF_JLE, BPF_REG_2, 4, 1),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
+ BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "variable untrusted_ptr_ access var_off=(0x0; 0x7) disallowed",
+},
+/* Tests for unreferened PTR_TO_BTF_ID */
+{
+ "map_kptr: unref: reject btf_struct_ids_match == false",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4),
+ BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "invalid kptr access, R1 type=untrusted_ptr_prog_test_ref_kfunc expected=ptr_prog_test",
+},
+{
+ "map_kptr: unref: loaded pointer marked as untrusted",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "R0 invalid mem access 'untrusted_ptr_or_null_'",
+},
+{
+ "map_kptr: unref: correct in kernel type size",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 32),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "access beyond struct prog_test_ref_kfunc at off 32 size 8",
+},
+{
+ "map_kptr: unref: inherit PTR_UNTRUSTED on struct walk",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 16),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_this_cpu_ptr),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "R1 type=untrusted_ptr_ expected=percpu_ptr_",
+},
+{
+ "map_kptr: unref: no reference state created",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = ACCEPT,
+},
+{
+ "map_kptr: unref: bpf_kptr_xchg rejected",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_MOV64_IMM(BPF_REG_2, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "off=0 kptr isn't referenced kptr",
+},
+/* Tests for referenced PTR_TO_BTF_ID */
+{
+ "map_kptr: ref: loaded pointer marked as untrusted",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_IMM(BPF_REG_1, 0),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 8),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_this_cpu_ptr),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "R1 type=rcu_ptr_or_null_ expected=percpu_ptr_",
+},
+{
+ "map_kptr: ref: reject off != 0",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_MOV64_IMM(BPF_REG_2, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "invalid kptr access, R2 type=ptr_prog_test_ref_kfunc expected=ptr_prog_test_member",
+},
+{
+ "map_kptr: ref: reference state created and released on xchg",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "Unreleased reference id=5 alloc_insn=20",
+ .fixup_kfunc_btf_id = {
+ { "bpf_kfunc_call_test_acquire", 15 },
+ }
+},
+{
+ "map_kptr: ref: reject STX",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, 0),
+ BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "store to referenced kptr disallowed",
+},
+{
+ "map_kptr: ref: reject ST",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, 8, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "store to referenced kptr disallowed",
+},
+{
+ "map_kptr: reject helper access to kptr",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_delete_elem),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .fixup_map_kptr = { 1 },
+ .result = REJECT,
+ .errstr = "kptr cannot be accessed indirectly by helper",
+},
diff --git a/tools/testing/selftests/bpf/verifier/perf_event_sample_period.c b/tools/testing/selftests/bpf/verifier/perf_event_sample_period.c
new file mode 100644
index 0000000000..d8a9b1a1f9
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/perf_event_sample_period.c
@@ -0,0 +1,59 @@
+{
+ "check bpf_perf_event_data->sample_period byte load permitted",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_perf_event_data, sample_period)),
+#else
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_perf_event_data, sample_period) + 7),
+#endif
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_PERF_EVENT,
+},
+{
+ "check bpf_perf_event_data->sample_period half load permitted",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_perf_event_data, sample_period)),
+#else
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_perf_event_data, sample_period) + 6),
+#endif
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_PERF_EVENT,
+},
+{
+ "check bpf_perf_event_data->sample_period word load permitted",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_perf_event_data, sample_period)),
+#else
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_perf_event_data, sample_period) + 4),
+#endif
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_PERF_EVENT,
+},
+{
+ "check bpf_perf_event_data->sample_period dword load permitted",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_perf_event_data, sample_period)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_PERF_EVENT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/precise.c b/tools/testing/selftests/bpf/verifier/precise.c
new file mode 100644
index 0000000000..0d84dd1f38
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/precise.c
@@ -0,0 +1,258 @@
+{
+ "precise: test 1",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_FP),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_ST_MEM(BPF_DW, BPF_REG_FP, -8, 0),
+ BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+
+ BPF_MOV64_REG(BPF_REG_9, BPF_REG_0),
+
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_FP),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+
+ BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+
+ BPF_ALU64_REG(BPF_SUB, BPF_REG_9, BPF_REG_8), /* map_value_ptr -= map_value_ptr */
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_9),
+ BPF_JMP_IMM(BPF_JLT, BPF_REG_2, 8, 1),
+ BPF_EXIT_INSN(),
+
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), /* R2=scalar(umin=1, umax=8) */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_FP),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_MOV64_IMM(BPF_REG_3, 0),
+ BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .fixup_map_array_48b = { 1 },
+ .result = VERBOSE_ACCEPT,
+ .errstr =
+ "mark_precise: frame0: last_idx 26 first_idx 20\
+ mark_precise: frame0: regs=r2 stack= before 25\
+ mark_precise: frame0: regs=r2 stack= before 24\
+ mark_precise: frame0: regs=r2 stack= before 23\
+ mark_precise: frame0: regs=r2 stack= before 22\
+ mark_precise: frame0: regs=r2 stack= before 20\
+ mark_precise: frame0: parent state regs=r2 stack=:\
+ mark_precise: frame0: last_idx 19 first_idx 10\
+ mark_precise: frame0: regs=r2,r9 stack= before 19\
+ mark_precise: frame0: regs=r9 stack= before 18\
+ mark_precise: frame0: regs=r8,r9 stack= before 17\
+ mark_precise: frame0: regs=r0,r9 stack= before 15\
+ mark_precise: frame0: regs=r0,r9 stack= before 14\
+ mark_precise: frame0: regs=r9 stack= before 13\
+ mark_precise: frame0: regs=r9 stack= before 12\
+ mark_precise: frame0: regs=r9 stack= before 11\
+ mark_precise: frame0: regs=r9 stack= before 10\
+ mark_precise: frame0: parent state regs= stack=:",
+},
+{
+ "precise: test 2",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_FP),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_ST_MEM(BPF_DW, BPF_REG_FP, -8, 0),
+ BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+
+ BPF_MOV64_REG(BPF_REG_9, BPF_REG_0),
+
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_FP),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+
+ BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+
+ BPF_ALU64_REG(BPF_SUB, BPF_REG_9, BPF_REG_8), /* map_value_ptr -= map_value_ptr */
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_9),
+ BPF_JMP_IMM(BPF_JLT, BPF_REG_2, 8, 1),
+ BPF_EXIT_INSN(),
+
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), /* R2=scalar(umin=1, umax=8) */
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_FP),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_MOV64_IMM(BPF_REG_3, 0),
+ BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACEPOINT,
+ .fixup_map_array_48b = { 1 },
+ .result = VERBOSE_ACCEPT,
+ .flags = BPF_F_TEST_STATE_FREQ,
+ .errstr =
+ "26: (85) call bpf_probe_read_kernel#113\
+ mark_precise: frame0: last_idx 26 first_idx 22\
+ mark_precise: frame0: regs=r2 stack= before 25\
+ mark_precise: frame0: regs=r2 stack= before 24\
+ mark_precise: frame0: regs=r2 stack= before 23\
+ mark_precise: frame0: regs=r2 stack= before 22\
+ mark_precise: frame0: parent state regs=r2 stack=:\
+ mark_precise: frame0: last_idx 20 first_idx 20\
+ mark_precise: frame0: regs=r2,r9 stack= before 20\
+ mark_precise: frame0: parent state regs=r2,r9 stack=:\
+ mark_precise: frame0: last_idx 19 first_idx 17\
+ mark_precise: frame0: regs=r2,r9 stack= before 19\
+ mark_precise: frame0: regs=r9 stack= before 18\
+ mark_precise: frame0: regs=r8,r9 stack= before 17\
+ mark_precise: frame0: parent state regs= stack=:",
+},
+{
+ "precise: cross frame pruning",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+ BPF_MOV64_IMM(BPF_REG_8, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_MOV64_IMM(BPF_REG_8, 1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+ BPF_MOV64_IMM(BPF_REG_9, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_MOV64_IMM(BPF_REG_9, 1),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_8, 1, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_2, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .flags = BPF_F_TEST_STATE_FREQ,
+ .errstr = "!read_ok",
+ .result = REJECT,
+},
+{
+ "precise: ST insn causing spi > allocated_stack",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_3, BPF_REG_10),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_3, 123, 0),
+ BPF_ST_MEM(BPF_DW, BPF_REG_3, -8, 0),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+ BPF_MOV64_IMM(BPF_REG_0, -1),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .flags = BPF_F_TEST_STATE_FREQ,
+ .errstr = "mark_precise: frame0: last_idx 5 first_idx 5\
+ mark_precise: frame0: parent state regs=r4 stack=:\
+ mark_precise: frame0: last_idx 4 first_idx 2\
+ mark_precise: frame0: regs=r4 stack= before 4\
+ mark_precise: frame0: regs=r4 stack= before 3\
+ mark_precise: frame0: regs= stack=-8 before 2\
+ mark_precise: frame0: falling back to forcing all scalars precise\
+ force_precise: frame0: forcing r0 to be precise\
+ mark_precise: frame0: last_idx 5 first_idx 5\
+ mark_precise: frame0: parent state regs= stack=:",
+ .result = VERBOSE_ACCEPT,
+ .retval = -1,
+},
+{
+ "precise: STX insn causing spi > allocated_stack",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+ BPF_MOV64_REG(BPF_REG_3, BPF_REG_10),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_3, 123, 0),
+ BPF_STX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, -8),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+ BPF_MOV64_IMM(BPF_REG_0, -1),
+ BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .flags = BPF_F_TEST_STATE_FREQ,
+ .errstr = "mark_precise: frame0: last_idx 6 first_idx 6\
+ mark_precise: frame0: parent state regs=r4 stack=:\
+ mark_precise: frame0: last_idx 5 first_idx 3\
+ mark_precise: frame0: regs=r4 stack= before 5\
+ mark_precise: frame0: regs=r4 stack= before 4\
+ mark_precise: frame0: regs= stack=-8 before 3\
+ mark_precise: frame0: falling back to forcing all scalars precise\
+ force_precise: frame0: forcing r0 to be precise\
+ force_precise: frame0: forcing r0 to be precise\
+ force_precise: frame0: forcing r0 to be precise\
+ force_precise: frame0: forcing r0 to be precise\
+ mark_precise: frame0: last_idx 6 first_idx 6\
+ mark_precise: frame0: parent state regs= stack=:",
+ .result = VERBOSE_ACCEPT,
+ .retval = -1,
+},
+{
+ "precise: mark_chain_precision for ARG_CONST_ALLOC_SIZE_OR_ZERO",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, offsetof(struct xdp_md, ingress_ifindex)),
+ BPF_LD_MAP_FD(BPF_REG_6, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_MOV64_IMM(BPF_REG_2, 1),
+ BPF_MOV64_IMM(BPF_REG_3, 0),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_4, 0, 1),
+ BPF_MOV64_IMM(BPF_REG_2, 0x1000),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_reserve),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 42),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_submit),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_ringbuf = { 1 },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .flags = BPF_F_TEST_STATE_FREQ | F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+ .errstr = "invalid access to memory, mem_size=1 off=42 size=8",
+ .result = REJECT,
+},
+{
+ "precise: program doesn't prematurely prune branches",
+ .insns = {
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_6, 0x400),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_7, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_8, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_9, 0x80000000),
+ BPF_ALU64_IMM(BPF_MOD, BPF_REG_6, 0x401),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_JMP_REG(BPF_JLE, BPF_REG_6, BPF_REG_9, 2),
+ BPF_ALU64_IMM(BPF_MOD, BPF_REG_6, 1),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_9, 0),
+ BPF_JMP_REG(BPF_JLE, BPF_REG_6, BPF_REG_9, 1),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_6, 0),
+ BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -4),
+ BPF_LD_MAP_FD(BPF_REG_4, 0),
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_4),
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_6, 10),
+ BPF_ALU64_IMM(BPF_MUL, BPF_REG_6, 8192),
+ BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_0),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_6),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_3, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 13 },
+ .prog_type = BPF_PROG_TYPE_XDP,
+ .result = REJECT,
+ .errstr = "register with unbounded min value is not allowed",
+},
diff --git a/tools/testing/selftests/bpf/verifier/scale.c b/tools/testing/selftests/bpf/verifier/scale.c
new file mode 100644
index 0000000000..7f868d4802
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/scale.c
@@ -0,0 +1,18 @@
+{
+ "scale: scale test 1",
+ .insns = { },
+ .data = { },
+ .fill_helper = bpf_fill_scale,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "scale: scale test 2",
+ .insns = { },
+ .data = { },
+ .fill_helper = bpf_fill_scale,
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 2,
+},
diff --git a/tools/testing/selftests/bpf/verifier/sleepable.c b/tools/testing/selftests/bpf/verifier/sleepable.c
new file mode 100644
index 0000000000..1f0d2bdc67
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/sleepable.c
@@ -0,0 +1,91 @@
+{
+ "sleepable fentry accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_TRACE_FENTRY,
+ .kfunc = "bpf_fentry_test1",
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable fexit accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_TRACE_FENTRY,
+ .kfunc = "bpf_fentry_test1",
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable fmod_ret accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_MODIFY_RETURN,
+ .kfunc = "bpf_fentry_test1",
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable iter accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_TRACE_ITER,
+ .kfunc = "task",
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable lsm accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_LSM,
+ .kfunc = "bpf",
+ .expected_attach_type = BPF_LSM_MAC,
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable uprobe accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_KPROBE,
+ .kfunc = "bpf_fentry_test1",
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable raw tracepoint reject",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_TRACE_RAW_TP,
+ .kfunc = "sched_switch",
+ .result = REJECT,
+ .errstr = "Only fentry/fexit/fmod_ret, lsm, iter, uprobe, and struct_ops programs can be sleepable",
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
diff --git a/tools/testing/selftests/bpf/verifier/wide_access.c b/tools/testing/selftests/bpf/verifier/wide_access.c
new file mode 100644
index 0000000000..55af248efa
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/wide_access.c
@@ -0,0 +1,83 @@
+#define BPF_SOCK_ADDR_STORE(field, off, res, err, flgs) \
+{ \
+ "wide store to bpf_sock_addr." #field "[" #off "]", \
+ .insns = { \
+ BPF_MOV64_IMM(BPF_REG_0, 1), \
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, \
+ offsetof(struct bpf_sock_addr, field[off])), \
+ BPF_EXIT_INSN(), \
+ }, \
+ .result = res, \
+ .prog_type = BPF_PROG_TYPE_CGROUP_SOCK_ADDR, \
+ .expected_attach_type = BPF_CGROUP_UDP6_SENDMSG, \
+ .errstr = err, \
+ .flags = flgs, \
+}
+
+/* user_ip6[0] is u64 aligned */
+BPF_SOCK_ADDR_STORE(user_ip6, 0, ACCEPT,
+ NULL, 0),
+BPF_SOCK_ADDR_STORE(user_ip6, 1, REJECT,
+ "invalid bpf_context access off=12 size=8",
+ F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+BPF_SOCK_ADDR_STORE(user_ip6, 2, ACCEPT,
+ NULL, 0),
+BPF_SOCK_ADDR_STORE(user_ip6, 3, REJECT,
+ "invalid bpf_context access off=20 size=8",
+ F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+
+/* msg_src_ip6[0] is _not_ u64 aligned */
+BPF_SOCK_ADDR_STORE(msg_src_ip6, 0, REJECT,
+ "invalid bpf_context access off=44 size=8",
+ F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+BPF_SOCK_ADDR_STORE(msg_src_ip6, 1, ACCEPT,
+ NULL, 0),
+BPF_SOCK_ADDR_STORE(msg_src_ip6, 2, REJECT,
+ "invalid bpf_context access off=52 size=8",
+ F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+BPF_SOCK_ADDR_STORE(msg_src_ip6, 3, REJECT,
+ "invalid bpf_context access off=56 size=8", 0),
+
+#undef BPF_SOCK_ADDR_STORE
+
+#define BPF_SOCK_ADDR_LOAD(field, off, res, err, flgs) \
+{ \
+ "wide load from bpf_sock_addr." #field "[" #off "]", \
+ .insns = { \
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, \
+ offsetof(struct bpf_sock_addr, field[off])), \
+ BPF_MOV64_IMM(BPF_REG_0, 1), \
+ BPF_EXIT_INSN(), \
+ }, \
+ .result = res, \
+ .prog_type = BPF_PROG_TYPE_CGROUP_SOCK_ADDR, \
+ .expected_attach_type = BPF_CGROUP_UDP6_SENDMSG, \
+ .errstr = err, \
+ .flags = flgs, \
+}
+
+/* user_ip6[0] is u64 aligned */
+BPF_SOCK_ADDR_LOAD(user_ip6, 0, ACCEPT,
+ NULL, 0),
+BPF_SOCK_ADDR_LOAD(user_ip6, 1, REJECT,
+ "invalid bpf_context access off=12 size=8",
+ F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+BPF_SOCK_ADDR_LOAD(user_ip6, 2, ACCEPT,
+ NULL, 0),
+BPF_SOCK_ADDR_LOAD(user_ip6, 3, REJECT,
+ "invalid bpf_context access off=20 size=8",
+ F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+
+/* msg_src_ip6[0] is _not_ u64 aligned */
+BPF_SOCK_ADDR_LOAD(msg_src_ip6, 0, REJECT,
+ "invalid bpf_context access off=44 size=8",
+ F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+BPF_SOCK_ADDR_LOAD(msg_src_ip6, 1, ACCEPT,
+ NULL, 0),
+BPF_SOCK_ADDR_LOAD(msg_src_ip6, 2, REJECT,
+ "invalid bpf_context access off=52 size=8",
+ F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+BPF_SOCK_ADDR_LOAD(msg_src_ip6, 3, REJECT,
+ "invalid bpf_context access off=56 size=8", 0),
+
+#undef BPF_SOCK_ADDR_LOAD