We've already had two "error during ctx access conversion" warnings triggered by syzkaller. Let's improve the error message by dumping the cnt variable so that we can more easily differentiate between the different error cases. Signed-off-by: Paul Chaignon --- kernel/bpf/verifier.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 399f03e62508..0806295945e4 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -21445,7 +21445,7 @@ static int convert_ctx_accesses(struct bpf_verifier_env *env) &target_size); if (cnt == 0 || cnt >= INSN_BUF_SIZE || (ctx_field_size && !target_size)) { - verifier_bug(env, "error during ctx access conversion"); + verifier_bug(env, "error during ctx access conversion (%d)", cnt); return -EFAULT; } -- 2.43.0