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 05AD51BC07B; Wed, 11 Sep 2024 23:20:34 +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=1726096834; cv=none; b=ImnZrT3zjcitzYJhQbBcoku4ZCm4tqa8gPQprAWxlhvRgRmhhsaJaqq7TtEmCciko8MWduHZXSLLYAVP9e+EPBc9bKl6jI8a8utHdrHHY8/FW/iuHsTrwaTMfRuoMbZI0+rCSyKGMHkHuBA0akPnPEwvNglLw4+EO1OHSxbq4A0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726096834; c=relaxed/simple; bh=T+Xk9de/KDBxm3BAUHKnu2gHLOOciVSNBTtQ8HkA9as=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=GllAfpPkZOl7o4wdvxDks3O52AqZEUGYXONmpMOIxqto9fazzqi2b+gd26axqmC3Y0qvxeJYENWt62Dvn+P7qEJHFgpa0larMwAcDR5uOOlkjNC17WgYPgv2GMqEz4HMYGye4RbxMbQJNqz93/VmtpkwIYRzgTu9mJw/cmgCwPw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=OLvVlj8m; 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="OLvVlj8m" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D59C6C4CEC0; Wed, 11 Sep 2024 23:20:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1726096833; bh=T+Xk9de/KDBxm3BAUHKnu2gHLOOciVSNBTtQ8HkA9as=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=OLvVlj8mYSixA5P6WQq6QZXi3dIYgPQvMVIsiREQgjYDGt2KYSwmCkMcqvJqs18fO yvnhoH0wS94gRvnANjcQJFA5naTdO1FNBNIg3GLFTrVwAumC57UtQga3Ur9i4y4PAD jMp2C8dFrqSoMgUBka8KP25MD9kdWB+nSOjnoVBzlu3f7vU16FiWhZsPrE/RyPTrpw QRPzbb+DKfJcVskBwAJRgQi0xZTSNlkRTQN/fzbQXJrYrH7hmyBNadeRagQ3EOZd/v nsAp62RuHErr2c8CFkiYDph8/3mwk6s9cxUPmatYvxHaxZvSSNtTex9mkQKsaPMyH8 mBXKJ+lKPdzLQ== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 33D123806656; Wed, 11 Sep 2024 23:20:36 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net V4] mptcp: pm: Fix uaf in __timer_delete_sync From: patchwork-bot+netdevbpf@kernel.org Message-Id: <172609683476.1105624.7683534378726526616.git-patchwork-notify@kernel.org> Date: Wed, 11 Sep 2024 23:20:34 +0000 References: In-Reply-To: To: Edward Adam Davis Cc: davem@davemloft.net, edumazet@google.com, geliang@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, martineau@kernel.org, matttbe@kernel.org, mptcp@lists.linux.dev, netdev@vger.kernel.org, pabeni@redhat.com, syzbot+f3a31fb909db9b2a5c4d@syzkaller.appspotmail.com, syzkaller-bugs@googlegroups.com Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Tue, 10 Sep 2024 17:58:56 +0800 you wrote: > There are two paths to access mptcp_pm_del_add_timer, result in a race > condition: > > CPU1 CPU2 > ==== ==== > net_rx_action > napi_poll netlink_sendmsg > __napi_poll netlink_unicast > process_backlog netlink_unicast_kernel > __netif_receive_skb genl_rcv > __netif_receive_skb_one_core netlink_rcv_skb > NF_HOOK genl_rcv_msg > ip_local_deliver_finish genl_family_rcv_msg > ip_protocol_deliver_rcu genl_family_rcv_msg_doit > tcp_v4_rcv mptcp_pm_nl_flush_addrs_doit > tcp_v4_do_rcv mptcp_nl_remove_addrs_list > tcp_rcv_established mptcp_pm_remove_addrs_and_subflows > tcp_data_queue remove_anno_list_by_saddr > mptcp_incoming_options mptcp_pm_del_add_timer > mptcp_pm_del_add_timer kfree(entry) > > [...] Here is the summary with links: - [net,V4] mptcp: pm: Fix uaf in __timer_delete_sync https://git.kernel.org/netdev/net/c/b4cd80b03389 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html