1 files changed, 95 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/verifier/value_illegal_alu.c b/tools/testing/selftests/bpf/verifier/value_illegal_alu.c
new file mode 100644
index 000000000..d6f29eb4b
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/value_illegal_alu.c
@@ -0,0 +1,95 @@
+{
+	"map element value illegal alu op, 1",
+	.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, 2),
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_48b = { 3 },
+	.errstr = "R0 bitwise operator &= on pointer",
+	.result = REJECT,
+},
+{
+	"map element value illegal alu op, 2",
+	.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, 2),
+	BPF_ALU32_IMM(BPF_ADD, BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_48b = { 3 },
+	.errstr = "R0 32-bit pointer arithmetic prohibited",
+	.result = REJECT,
+},
+{
+	"map element value illegal alu op, 3",
+	.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, 2),
+	BPF_ALU64_IMM(BPF_DIV, BPF_REG_0, 42),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_48b = { 3 },
+	.errstr = "R0 pointer arithmetic with /= operator",
+	.result = REJECT,
+},
+{
+	"map element value illegal alu op, 4",
+	.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, 2),
+	BPF_ENDIAN(BPF_FROM_BE, BPF_REG_0, 64),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_48b = { 3 },
+	.errstr_unpriv = "R0 pointer arithmetic prohibited",
+	.errstr = "invalid mem access 'scalar'",
+	.result = REJECT,
+	.result_unpriv = REJECT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"map element value illegal alu op, 5",
+	.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_MOV64_IMM(BPF_REG_3, 4096),
+	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_0, 0),
+	BPF_ATOMIC_OP(BPF_DW, BPF_ADD, BPF_REG_2, BPF_REG_3, 0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 0),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_48b = { 3 },
+	.errstr_unpriv = "leaking pointer from stack off -8",
+	.errstr = "R0 invalid mem access 'scalar'",
+	.result = REJECT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},