Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 104 insertions, 0 deletions

diff --git a/tools/testing/selftests/bpf/verifier/value.c b/tools/testing/selftests/bpf/verifier/value.c
new file mode 100644
index 000000000..0e42592b1
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/value.c
@@ -0,0 +1,104 @@
+{
+	"map element value store of cleared call register",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	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_1, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_48b = { 3 },
+	.errstr_unpriv = "R1 !read_ok",
+	.errstr = "R1 !read_ok",
+	.result = REJECT,
+	.result_unpriv = REJECT,
+},
+{
+	"map element value with unaligned store",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 17),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 43),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, -2, 44),
+	BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+	BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 32),
+	BPF_ST_MEM(BPF_DW, BPF_REG_8, 2, 33),
+	BPF_ST_MEM(BPF_DW, BPF_REG_8, -2, 34),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_8, 5),
+	BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 22),
+	BPF_ST_MEM(BPF_DW, BPF_REG_8, 4, 23),
+	BPF_ST_MEM(BPF_DW, BPF_REG_8, -7, 24),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_8),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 3),
+	BPF_ST_MEM(BPF_DW, BPF_REG_7, 0, 22),
+	BPF_ST_MEM(BPF_DW, BPF_REG_7, 4, 23),
+	BPF_ST_MEM(BPF_DW, BPF_REG_7, -4, 24),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_48b = { 3 },
+	.errstr_unpriv = "R0 leaks addr",
+	.result = ACCEPT,
+	.result_unpriv = REJECT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"map element value with unaligned load",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 9),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 2),
+	BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 5),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 4),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_48b = { 3 },
+	.errstr_unpriv = "R0 leaks addr",
+	.result = ACCEPT,
+	.result_unpriv = REJECT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"map element value is preserved across register spilling",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, offsetof(struct test_val, foo)),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184),
+	BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0),
+	BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_48b = { 3 },
+	.errstr_unpriv = "R0 leaks addr",
+	.result = ACCEPT,
+	.result_unpriv = REJECT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},