On Tue, 1 Sep 2026 00:06:05 +0900 "Masami Hiramatsu (Google)" <[email protected]> wrote:
> From: Masami Hiramatsu (Google) <[email protected]> > > btf_find_struct_member() traverses into nested anonymous structures > and unions by pushing members with !member->name_off onto anon_stack. > However, it does not consider the unnamed bitfields (e.g. `int : 5` > or `unsigned int : 0`) which also have member->name_off == 0. > > If such an unnamed bitfield is pushed to anon_stack, the > btf_find_struct_member() return an error even if there are other > valid entries in anon_stack. > > To fix this, only push unnamed struct/union members to anon_stack. > Also move the btf_type_is_struct() check to the entry of this function > because now it is sure only struct/union are pushed to anon_stack. > Should we add Reported-by and a link to the Sashiko report? > Fixes: 302db0f5b3d8 ("tracing/probes: Add a function to search a member of a > struct/union") > Signed-off-by: Masami Hiramatsu (Google) <[email protected]> Reviewed-by: Steven Rostedt <[email protected]> -- Steve
