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 3FEBD299A87; Sat, 14 Mar 2026 15:40:11 +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=1773502811; cv=none; b=VAm0718whB/RjZ7QHbeeZdGCB6yYKo1LVm2doLtFslhjrriVTX4lXVVuf3YbzH9ZLhtHPnCeK7icH3YatmuhTft+rLzgOD/89LtxfwMNO27KlulZJ93Thb4nBWp8ebyGT6Ai46rm72mcrgzyGRl614ZXahhqwLi1iYRsI4DujmY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773502811; c=relaxed/simple; bh=VaEr4zgt11yO0+g30xjvAho2IbqcTqvirp+IouJ0pA0=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=UEFIXZ06qvatg18Q4D2BXP7k6aH5NRZZ4XOVrvX+PoXZQvA8sAlU+4eEknO0daZ/jk8lDXtkZIWtw/EjpDb091wcruQypsUZz9wtwQerNWTmBLwQ2If3bEVhF4mNtQe2pCwhn9S54dnSb/WV0dEQcSISR71DgqPdwvLuf6BdTho= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=u+hmlKdi; 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="u+hmlKdi" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D2389C116C6; Sat, 14 Mar 2026 15:40:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773502810; bh=VaEr4zgt11yO0+g30xjvAho2IbqcTqvirp+IouJ0pA0=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=u+hmlKdiggDDVsC7hYMUF1uO50fqj35m1F6+QzioGkU4DfJ7INcGuDxWzigLlFGQM LbAR/4mrn6QlMtvGhePo4EI/PnOmh2sDqAQ89Vh1/N4MXlnRzitcrWxjfTyEG2iIfj kT5QoR1P58swhfbi6xRA/P8pPQqTSwf0WZ4RnS/znISfqExS2pXQJq/pAazrRPnAEw EFC6fHk4sLwEc9xOpvyfUrR73ML7QSvmiOw5lowVXXovTC32k7ftehK2Y4J3GSWDGd X+HuxX5elgK/b3WrKnHcTAgJMqBueEbrCMIEbD1IYtFwNv+VwGfn5fleIxjV2aZ8yQ Me3dCvrOK6rjg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 3FDAD3808200; Sat, 14 Mar 2026 15:40:06 +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 v2] atm: lec: fix use-after-free in sock_def_readable() From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177350280480.1717807.14508217013356805323.git-patchwork-notify@kernel.org> Date: Sat, 14 Mar 2026 15:40:04 +0000 References: <20260309155908.508768-1-kartikey406@gmail.com> In-Reply-To: <20260309155908.508768-1-kartikey406@gmail.com> To: Deepanshu Kartikey Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, mingo@kernel.org, tglx@kernel.org, jiayuan.chen@shopee.com, kees@kernel.org, netdev@vger.kernel.org, dan.carpenter@linaro.org, linux-kernel@vger.kernel.org, syzbot+f50072212ab792c86925@syzkaller.appspotmail.com Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Mon, 9 Mar 2026 21:29:08 +0530 you wrote: > A race condition exists between lec_atm_close() setting priv->lecd > to NULL and concurrent access to priv->lecd in send_to_lecd(), > lec_handle_bridge(), and lec_atm_send(). When the socket is freed > via RCU while another thread is still using it, a use-after-free > occurs in sock_def_readable() when accessing the socket's wait queue. > > The root cause is that lec_atm_close() clears priv->lecd without > any synchronization, while callers dereference priv->lecd without > any protection against concurrent teardown. > > [...] Here is the summary with links: - [v2] atm: lec: fix use-after-free in sock_def_readable() https://git.kernel.org/netdev/net/c/922814879542 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html