On Sat, May 09, 2020 at 10:59:00AM -0700, Yonghong Song wrote: > diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c > index 70ad009577f8..d725ff7d11db 100644 > --- a/kernel/bpf/verifier.c > +++ b/kernel/bpf/verifier.c > @@ -7101,6 +7101,10 @@ static int check_return_code(struct bpf_verifier_env *env) > return 0; > range = tnum_const(0); > break; > + case BPF_PROG_TYPE_TRACING: > + if (env->prog->expected_attach_type != BPF_TRACE_ITER) > + return 0; > + break; Not related to this set, but I just noticed that I managed to forget to add this check for fentry/fexit/freplace. While it's not too late let's enforce return 0 for them ? Could you follow up with a patch for bpf tree?
