Re: [PATCH bpf-next v5 13/14] bpf: Reject tracing/freplace progs for struct_ops with arena args
Eduard Zingerman <[email protected]>
| Newsgroups | org.kernel.vger.bpf |
|---|---|
| Message-ID | <[email protected]> |
On Sat, 2026-08-08 at 02:39 +0200, Kumar Kartikeya Dwivedi wrote: > Reject tracing and freplace attachments to a target program with arena > context arguments. The struct_ops indirect trampoline converts those > arguments before entering the target, so a generic tracing trampoline > would otherwise expose arena offsets using the target BTF pointer type. > > Signed-off-by: Kumar Kartikeya Dwivedi <[email protected]> > --- It appears a similar check is needed for kfuncs with __arena args, let's add as a follow-up. (But we need figure out how to properly handle these args eventually). Acked-by: Eduard Zingerman <[email protected]> ...