diff options
Diffstat (limited to 'samples/bpf/test_verifier.c')
| -rw-r--r-- | samples/bpf/test_verifier.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/samples/bpf/test_verifier.c b/samples/bpf/test_verifier.c index 75d561f9fd6a..12f3780af73f 100644 --- a/samples/bpf/test_verifier.c +++ b/samples/bpf/test_verifier.c @@ -721,6 +721,28 @@ static struct bpf_test tests[] = { .errstr = "different pointers", .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 = {7}, + .errstr = "different pointers", + .result = REJECT, + }, }; static int probe_filter_length(struct bpf_insn *fp) @@ -769,7 +791,7 @@ static int test(void) prog_fd = bpf_prog_load(BPF_PROG_TYPE_SOCKET_FILTER, prog, prog_len * sizeof(struct bpf_insn), - "GPL"); + "GPL", 0); if (tests[i].result == ACCEPT) { if (prog_fd < 0) { |