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From: Florian Westphal <fw@strlen.de>
To: zihan xi <zihanx@nebusec.ai>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>,
	"David S . Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Phil Sutter <phil@nwl.cc>, Simon Horman <horms@kernel.org>,
	netfilter-devel@vger.kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, coreteam@netfilter.org,
	stable@vger.kernel.org, Vega <vega@nebusec.ai>
Subject: Re: [PATCH nf 1/1] netfilter: nf_dup: prevent asynchronous duplicate recursion
Date: Thu, 3 Sep 2026 08:58:15 +0200	[thread overview]
Message-ID: <apkahwSdQhuE6gRV@strlen.de> (raw)
In-Reply-To: <CAANe3eT8ycDkomgpzZmni7hMrUX1fr2dE4QvQOcKCPEcw=J=2A@mail.gmail.com>

zihan xi <zihanx@nebusec.ai> wrote:
> If you do prefer to keep a small nf_dup-only change, I can prepare either:
> 
> 1. disable IPv4/IPv6 dup in network namespaces owned by a non-initial user
>    namespace; or

I think this is the better option, someone would have to explain
the use-case for DUP in a user netns.

  reply	other threads:[~2026-09-03  6:58 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-29  5:19 [PATCH nf 0/1] netfilter: nf_dup: prevent asynchronous duplicate recursion Zihan Xi
2026-08-29  5:19 ` [PATCH nf 1/1] " Zihan Xi
2026-08-29  9:27   ` Florian Westphal
2026-08-29 12:20     ` zihan xi
2026-09-03  6:58       ` Florian Westphal [this message]
2026-09-03  8:09         ` zihan xi

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