From: Florian Westphal <fw@strlen.de>
To: Ren Wei <n05ec@lzu.edu.cn>
Cc: netfilter-devel@vger.kernel.org, pablo@netfilter.org,
phil@nwl.cc, davem@davemloft.net, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, horms@kernel.org,
ebiederm@xmission.com, yuantan098@gmail.com, yifanwucs@gmail.com,
tomapufckgml@gmail.com, bird@lzu.edu.cn,
wangjiexun2025@gmail.com
Subject: Re: [PATCH nf 1/1] netfilter: xt_policy: fix strict mode inbound policy matching
Date: Fri, 17 Apr 2026 14:49:14 +0200 [thread overview]
Message-ID: <aeIsSl26ZZJZ1n7U@strlen.de> (raw)
In-Reply-To: <85a95e0ef783ed8f5f4a787138cca22f995d8056.1776141503.git.wangjiexun2025@gmail.com>
Ren Wei <n05ec@lzu.edu.cn> wrote:
> From: Jiexun Wang <wangjiexun2025@gmail.com>
>
> match_policy_in() walks sec_path entries from the last transform to the
> first one, but strict policy matching needs to consume info->pol[] in
> the same forward order as the rule layout.
>
> Derive the strict-match policy position from the number of transforms
> already consumed so that multi-element inbound rules are matched
> consistently.
That hints that secpaths with len > 1 do not exist, or at least
have never been used. This has always been broken.
For the patch
Acked-by: Florian Westphal <fw@strlen.de>
prev parent reply other threads:[~2026-04-17 12:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1776141503.git.wangjiexun2025@gmail.com>
2026-04-17 12:25 ` [PATCH nf 1/1] netfilter: xt_policy: fix strict mode inbound policy matching Ren Wei
2026-04-17 12:49 ` Florian Westphal [this message]
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