From: Florian Westphal <fw@strlen.de>
To: Yuto Hamaguchi <Hamaguchi.Yuto@da.mitsubishielectric.co.jp>
Cc: pablo@netfilter.org, kadlec@netfilter.org,
netfilter-devel@vger.kernel.org, coreteam@netfilter.org,
netdev@vger.kernel.org
Subject: Re: [PATCH nf] netfilter: nf_conntrack: Add allow_clash to generic protocol handler
Date: Sat, 20 Dec 2025 21:05:59 +0100 [thread overview]
Message-ID: <aUcBp4VuHTPqCdEt@strlen.de> (raw)
In-Reply-To: <20251219115351.5662-1-Hamaguchi.Yuto@da.MitsubishiElectric.co.jp>
Yuto Hamaguchi <Hamaguchi.Yuto@da.MitsubishiElectric.co.jp> wrote:
> The upstream commit, 71d8c47fc653711c41bc3282e5b0e605b3727956
> ("netfilter: conntrack: introduce clash resolution on insertion race"),
> sets allow_clash=true in the UDP/UDPLITE protocol handler
> but does not set it in the generic protocol handler.
>
> As a result, packets composed of connectionless protocols at each layer,
> such as UDP over IP-in-IP, still drop packets due to conflicts during conntrack insertion.
>
> To resolve this, this patch sets allow_clash in the nf_conntrack_l4proto_generic.
Makes sense to me, thanks.
I'll apply this for the next batch.
next prev parent reply other threads:[~2025-12-20 20:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-19 11:53 [PATCH nf] netfilter: nf_conntrack: Add allow_clash to generic protocol handler Yuto Hamaguchi
2025-12-20 20:05 ` Florian Westphal [this message]
2025-12-22 10:32 ` Pablo Neira Ayuso
2025-12-22 11:22 ` Florian Westphal
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=aUcBp4VuHTPqCdEt@strlen.de \
--to=fw@strlen.de \
--cc=Hamaguchi.Yuto@da.mitsubishielectric.co.jp \
--cc=coreteam@netfilter.org \
--cc=kadlec@netfilter.org \
--cc=netdev@vger.kernel.org \
--cc=netfilter-devel@vger.kernel.org \
--cc=pablo@netfilter.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).