From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5E96C2A1BB for ; Sat, 15 Nov 2025 02:20:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763173241; cv=none; b=MH+1W2yCdxWrzp63w8u/460WeaIpsP+MPTn96rj5ft31jTkq3BWnib0iSo0OGyCNfLJhzSG1ygpg3w20WTKwduhOYwa6PQmt0Bs2TdKimWfVXVX3WJBjK69gBZ4TZJ9Va2ch1Jz5T+3iG51QPcPsFiBkfxpGvUP2vRkC0FAFY70= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763173241; c=relaxed/simple; bh=EZdgVBu5kBbW9srrpkJ06/A+kS4jcUVxpR1vAGzvd6Y=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=S2Fw3dDA2YCB1Rxvgm6vY7P6HMiEvkuZcDJCeiMnW42l2Je8PH4OoEuDH2KA4sbRbWJhIABIFzDCk7iciLoKIasBZz8SE9F3B3j7p/HkSO1koAcr7yvgC2TODdQJhCXXY/jiqwiBdQ+Kd55UZK91Y9W6YhRWiwwRvXDlTxZidRg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lrC86Z21; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="lrC86Z21" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DE1FAC4CEFB; Sat, 15 Nov 2025 02:20:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1763173240; bh=EZdgVBu5kBbW9srrpkJ06/A+kS4jcUVxpR1vAGzvd6Y=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=lrC86Z21b5xVapR+dYJu1gBw06nTwNFoQmyQ9CUfSlONq+k2yw3QX0TMB0SD7B+it DgvrOq+2aufhV5y6iRr/4eN2HwBGJkpSmTPMOQE7sXbWMQCBNPTZxCm8qNn7KJthyO eOh0qLOGtordTpfTEiwU6dWajTDQQ/qojLb5Qr6WigY5d7I7jlc7Mf628vu4NW2xvb qC1H4IHTT6gv45V02pIfOl6oytj76rEk4PxxTO4WLW8HtBU3EHNZZD48LeLf0cc84h T+ST0x2x54jhWzE/BE6jnhcimkZhVoxDUnOtInzfCpMRci8BP+GNSrQWf4RC9G3+zZ 4lWBs8xk1CeOg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 70E0A3A78A62; Sat, 15 Nov 2025 02:20:10 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net] mptcp: fix race condition in mptcp_schedule_work() From: patchwork-bot+netdevbpf@kernel.org Message-Id: <176317320926.1911668.347846021009894983.git-patchwork-notify@kernel.org> Date: Sat, 15 Nov 2025 02:20:09 +0000 References: <20251113103924.3737425-1-edumazet@google.com> In-Reply-To: <20251113103924.3737425-1-edumazet@google.com> To: Eric Dumazet Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, matttbe@kernel.org, martineau@kernel.org, geliang.tang@linux.dev, fw@strlen.de, netdev@vger.kernel.org, eric.dumazet@gmail.com, syzbot+355158e7e301548a1424@syzkaller.appspotmail.com Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Thu, 13 Nov 2025 10:39:24 +0000 you wrote: > syzbot reported use-after-free in mptcp_schedule_work() [1] > > Issue here is that mptcp_schedule_work() schedules a work, > then gets a refcount on sk->sk_refcnt if the work was scheduled. > This refcount will be released by mptcp_worker(). > > [A] if (schedule_work(...)) { > [B] sock_hold(sk); > return true; > } > > [...] Here is the summary with links: - [net] mptcp: fix race condition in mptcp_schedule_work() https://git.kernel.org/netdev/net/c/035bca3f017e You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html