Re: [PATCH bpf 2/4] bpf: Check netfilter ctx accesses are aligned

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On 8/1/25 2:48 AM, Paul Chaignon wrote:
Similarly to the previous patch fixing the flow_dissector ctx accesses,
nf_is_valid_access also doesn't check that ctx accesses are aligned.
Contrary to flow_dissector programs, netfilter programs don't have
context conversion. The unaligned ctx accesses are therefore allowed by
the verifier.

Fixes: fd9c663b9ad6 ("bpf: minimal support for programs hooked into netfilter framework")
Signed-off-by: Paul Chaignon <paul.chaignon@xxxxxxxxx>

Acked-by: Yonghong Song <yonghong.song@xxxxxxxxx>






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