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From: patchwork-bot+netdevbpf@kernel.org
To: Jann Horn <jannh@google.com>
Cc: paul@paul-moore.com, davem@davemloft.net, edumazet@kernel.org,
	kuba@kernel.org, pabeni@redhat.com, jmorris@namei.org,
	serge@hallyn.com, horms@kernel.org,
	stephen.smalley.work@gmail.com, omosnacek@gmail.com,
	casey@schaufler-ca.com, netdev@vger.kernel.org,
	linux-security-module@vger.kernel.org,
	linux-kernel@vger.kernel.org, selinux@vger.kernel.org,
	stable@vger.kernel.org
Subject: Re: [PATCH net] cipso: stop modifying live ip_options_rcu
Date: Wed, 11 Nov 2026 00:50:05 +0000	[thread overview]
Message-ID: <179435820518.142717.5535232865040780378.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20261106-cipso-rcuopts-v1-1-31ae931d7a0f@google.com>

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Fri, 06 Nov 2026 22:40:31 +0100 you wrote:
> cipso_v4_delopt() operates on the ip_options_rcu of a socket or a request
> socket, and tries to remove CIPSO options from the middle by moving all
> subsequent options.
> That's not allowed - ip_options_rcu can be read locklessly and must always
> be consistent. For example, ip_options_undo() reads trusted offsets and
> length values from the options buffer.
> Fix it by doing the modification in a copy.
> 
> [...]

Here is the summary with links:
  - [net] cipso: stop modifying live ip_options_rcu
    https://git.kernel.org/netdev/net/c/1f2c5183fc09

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html



      parent reply	other threads:[~2026-11-11  0:50 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-06 21:40 [PATCH net] cipso: stop modifying live ip_options_rcu Jann Horn
2026-11-06 23:06 ` Eric Dumazet
2026-11-09 20:14   ` Paul Moore
2026-11-10 16:41   ` Casey Schaufler
2026-11-09 20:13 ` Paul Moore
2026-11-10 16:13   ` Casey Schaufler
2026-11-10 16:10 ` Casey Schaufler
2026-11-11  0:50 ` patchwork-bot+netdevbpf [this message]

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