linux-kernel - Re: [PATCH net v2] netfilter: br_netfilter: do not check confirmed bit in br_nf_local

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Message-ID: <aKghV0FQDXa0qodb@strlen.de>
Date: Fri, 22 Aug 2025 09:50:58 +0200
From: Florian Westphal <fw@...len.de>
To: Wang Liang <wangliang74@...wei.com>
Cc: pablo@...filter.org, kadlec@...filter.org, razor@...ckwall.org,
	idosch@...dia.com, davem@...emloft.net, edumazet@...gle.com,
	kuba@...nel.org, pabeni@...hat.com, horms@...nel.org,
	yuehaibing@...wei.com, zhangchangzhong@...wei.com,
	netfilter-devel@...r.kernel.org, coreteam@...filter.org,
	bridge@...ts.linux.dev, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH net v2] netfilter: br_netfilter: do not check confirmed
 bit in br_nf_local_in() after confirm

Wang Liang <wangliang74@...wei.com> wrote:
> When send a broadcast packet to a tap device, which was added to a bridge,
> br_nf_local_in() is called to confirm the conntrack. If another conntrack
> with the same hash value is added to the hash table, which can be
> triggered by a normal packet to a non-bridge device, the below warning
> may happen.

I placed this in nf.git:testing.

In case netdev maintainers want to take it directly:

Acked-by: Florian Westphal <fw@...len.de>