linux/tools/testing/selftests/bpf/verifier/prevent_map_lookup.c

30 lines
858 B
C

{
"prevent map lookup in stack trace",
.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_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
BPF_EXIT_INSN(),
},
.fixup_map_stacktrace = { 3 },
.result = REJECT,
.errstr = "cannot pass map_type 7 into func bpf_map_lookup_elem",
.prog_type = BPF_PROG_TYPE_PERF_EVENT,
},
{
"prevent map lookup in prog array",
.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_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
BPF_EXIT_INSN(),
},
.fixup_prog2 = { 3 },
.result = REJECT,
.errstr = "cannot pass map_type 3 into func bpf_map_lookup_elem",
},