bpf: Reject tracing/freplace progs for struct_ops with arena args

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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 <memxor@gmail.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://patch.msgid.link/20260808003938.3486067-14-memxor@gmail.com
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>

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Kumar Kartikeya Dwivedi 2026-08-08 02:39:33 +02:00 • committed by Eduard Zingerman

parent 2d4de9a493

commit fd6094ac87

1 changed files with 10 additions and 0 deletions

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kernel/bpf/verifier.c

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