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 545765137 for ; Fri, 18 Mar 2022 21:20:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id F1686C340F0; Fri, 18 Mar 2022 21:20:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1647638413; bh=1nmMWiYNcjCRu0y7t8Gr4VgP3eDKoAYhbGIR/JIpUMw=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=bYk3qVdCU/J8HYrU3Fl+/10r1HlgJMwlIy3TKNZZZr0UbRSwxJvZBbOFvSUTfFSZ4 t7sY6owgZv2xp1yvRGpkwmjeLD1MI6lvuPeh42cL/PDon8SVwUqTI+H3iiEIqPN07q mOODBRFrjw3H7beQqm1EHkPcT6gBZRxmI5Bg9W5pg7KGP/SvXY/dMrHnTDNP9v10eW abBQbYnBG910L8xOuDaJXpc958aw29AnoYU2N9xMksjzvXw7bzAy69MmsBqH5bjcPx AydRwjLdgzHmcbGg3DjqY0KaVGjZvG/O6HwuEr6GsC1UwzNNIVovmfGS+E0nagYyzv zvtpDLzqGP1qQ== Received: from aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (localhost.localdomain [127.0.0.1]) by aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (Postfix) with ESMTP id D7A3AE6D44B; Fri, 18 Mar 2022 21:20:12 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net] mptcp: Fix crash due to tcp_tsorted_anchor was initialized before release skb From: patchwork-bot+netdevbpf@kernel.org Message-Id: <164763841287.20195.16890121074112773780.git-patchwork-notify@kernel.org> Date: Fri, 18 Mar 2022 21:20:12 +0000 References: <20220317220953.426024-1-mathew.j.martineau@linux.intel.com> In-Reply-To: <20220317220953.426024-1-mathew.j.martineau@linux.intel.com> To: Mat Martineau Cc: netdev@vger.kernel.org, liyonglong@chinatelecom.cn, davem@davemloft.net, kuba@kernel.org, matthieu.baerts@tessares.net, mptcp@lists.linux.dev, stable@vger.kernel.org, pabeni@redhat.com Hello: This patch was applied to netdev/net.git (master) by Jakub Kicinski : On Thu, 17 Mar 2022 15:09:53 -0700 you wrote: > From: Yonglong Li > > Got crash when doing pressure test of mptcp: > > =========================================================================== > dst_release: dst:ffffa06ce6e5c058 refcnt:-1 > kernel tried to execute NX-protected page - exploit attempt? (uid: 0) > BUG: unable to handle kernel paging request at ffffa06ce6e5c058 > PGD 190a01067 P4D 190a01067 PUD 43fffb067 PMD 22e403063 PTE 8000000226e5c063 > Oops: 0011 [#1] SMP PTI > CPU: 7 PID: 7823 Comm: kworker/7:0 Kdump: loaded Tainted: G E > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.2.1 04/01/2014 > Call Trace: > ? skb_release_head_state+0x68/0x100 > ? skb_release_all+0xe/0x30 > ? kfree_skb+0x32/0xa0 > ? mptcp_sendmsg_frag+0x57e/0x750 > ? __mptcp_retrans+0x21b/0x3c0 > ? __switch_to_asm+0x35/0x70 > ? mptcp_worker+0x25e/0x320 > ? process_one_work+0x1a7/0x360 > ? worker_thread+0x30/0x390 > ? create_worker+0x1a0/0x1a0 > ? kthread+0x112/0x130 > ? kthread_flush_work_fn+0x10/0x10 > ? ret_from_fork+0x35/0x40 > =========================================================================== > > [...] Here is the summary with links: - [net] mptcp: Fix crash due to tcp_tsorted_anchor was initialized before release skb https://git.kernel.org/netdev/net/c/3ef3905aa3b5 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html