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From: Qi Tang <tpluszz77@gmail.com>
To: fw@strlen.de
Cc: netfilter-devel@vger.kernel.org, netdev@vger.kernel.org,
	pablo@netfilter.org, herbert@gondor.apana.org.au,
	michael.bommarito@gmail.com, lyutoon@gmail.com,
	Qi Tang <tpluszz77@gmail.com>
Subject: Re: [RFC] netfilter: disable payload mangling in userns
Date: Fri, 15 May 2026 19:48:48 +0800	[thread overview]
Message-ID: <20260515114848.1105927-1-tpluszz77@gmail.com> (raw)
In-Reply-To: <20260515100411.3141-1-fw@strlen.de>

I agree with the userns block.  I'll keep pushing the five
consumer-side bounds-check patches: root in init userns can
still install the same payload-set rule and trigger the same
OOB at the re-read sites, so the underlying bug fix is still
worth landing.

None of the five sites overlap with the relax wishlist (saddr/
daddr, transport, linklayer).  Same class showed up in an
earlier patch:
  https://lore.kernel.org/netdev/20260514035802.1540395-1-tpluszz77@gmail.com/

These five are unlikely to be all of them; we think the
consumer side warrants a broader audit.  Thoughts?

Qi

  reply	other threads:[~2026-05-15 11:48 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-15 10:04 [RFC] netfilter: disable payload mangling in userns Florian Westphal
2026-05-15 11:48 ` Qi Tang [this message]
2026-05-15 12:48   ` Florian Westphal

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