From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794358207; b=v67XvonSUIOHNRAUCrZmhi5qD0zx8MXN1R13CNZCh9nUxQiN2xEeECUSrZDxK7rVBC9w 1gBuhZFnQclZSjY08v/KoXAS3pUCwDTpsptBdhyRstRzeyKqtz2v+j43X4ZLcOc3NnOzu jiyW9HSdOt7bahHdqrEmgNq/mjt8qFPXj78XmlaEPgGk4f5QQAhMvoQOU+yXhyNqbA2vY +ZPhq3Lioj4epNM+sRs8ovBXa52d3zTPhpsZlYCmxuPSM/7+ETAn2fe4Nxb8XdkY+nyzM ZyTe+cs1XSNexx4AEGZ59XUg2uy+B2gqinxh9hrNQoisG6aj1gY9i3sdEgt75JLnx3g== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794358207; h=Received:DKIM-Signature:Received:Content-Type:MIME-Version: Content-Transfer-Encoding:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; bh=d5faOEgw9/xCBeRgP4qFBQ9+iauNTkgah4zQf/hKjwc=; b=pVaytooKu44mWGMCQK307xlt/oPvFOto674+3Olzs2eEqNO7a8W2tXAvs2DIhc/G3Pp5 hdCL5LjbVUI87Bora75BM3TXZPlRQfLmRW4n00AXVfX5LGdojK85sV9M5t7ODvjwgnsTy y3hpeJXffAbEHo3opjXRYXN1xT54NEkYWK9m7QdaBq9JMkWTzyV23d7yDWsn1wjAR3jqz x0BbkkDP0/yp0kERK6MAuMD0wopXzu7TUaDe6UfaTDawshopk2V+uMvu4rO3dOvA7KFMU O+tx4iXK97Z5iIH/v5Olh0SPAAG03io3iA5GbR/7F+N/srBOPeEdGwDelsg7wXnDL1A== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=neVdYXZw; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E5F20606A31C; Wed, 11 Nov 2026 00:50:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=neVdYXZw Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6B5691F0089F; Wed, 11 Nov 2026 00:50:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794358206; bh=d5faOEgw9/xCBeRgP4qFBQ9+iauNTkgah4zQf/hKjwc=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=neVdYXZwsoWzXbS0Ns29tqjDabZmucPjU3doSpLTzSh5AnhvIqT3+tdKRb8a2soVA AGOuquDi8QwqSg3q2RLbUn5CGHLx4Av8R2iCg9iAN1VW2f4worR6QUw0kLgJvRW/XU 9UMqbiTe8wN4YJP0qm/HGKmgSESg01HRfSsbeu9242FFnec1+hTJvdcF9941GqldwN dFtFV9AjY0F7+j5cML5EupPlJPwA+GpXxwe083+SjOOVSQdmVwoGmGkS6ufj6SfOtv WrmjRVw/EV6ltRQTuJM3MfvbWCMlJ2euECeTan4V1ybmNjoWxTPovOdmqMaciqSel/ fRBfMQiGmEBIA== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 5E08639E8A55; Wed, 11 Nov 2026 00:50:06 +0000 (UTC) Content-Type: text/plain; charset="utf-8" X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net] cipso: stop modifying live ip_options_rcu From: patchwork-bot+netdevbpf@kernel.org Message-Id: <179435820518.142717.5535232865040780378.git-patchwork-notify@kernel.org> Date: Wed, 11 Nov 2026 00:50:05 +0000 References: <20261106-cipso-rcuopts-v1-1-31ae931d7a0f@google.com> In-Reply-To: <20261106-cipso-rcuopts-v1-1-31ae931d7a0f@google.com> To: Jann Horn 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 Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : 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