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 99EE51C3BE7; Mon, 23 Dec 2024 18:10:18 +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=1734977418; cv=none; b=rtmmx8JYZVRFbglAQxPqWTPRgE49UchAP5zhAYZ0TTgam0g0FgUHV+WaXM7YOfBbA9qjvGbXvhp1KfK2MqFz6s/UhwlD4QwCalnvtf8LRxJtsDu/XUmohjAyFBB6wwPC4ZgTWImusUpHXF8xpMpwaJwIw02O6xd1J5EScdnFJvM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734977418; c=relaxed/simple; bh=KJiNIh4OQ8lGKPrQdi0wcuPy97JBnl46/hHW1i4t3tY=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=uVEqW8B9h4zyq6f2Lf1ncSYxnUHQgJhCst0pNbds8WCGL1Cj/ruU4UKHQozI+VgVcORJytTX9QWcWgYoGfzYilICksYRMbE8vpWLW1l4e2eVuWMsaqNDWZqTBKQOz9Q2NESMKArfLEbt6eXXbuH08EZ6wBaWS0RounHtbEmH3XY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gpKWtluU; 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="gpKWtluU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 794E8C4CED3; Mon, 23 Dec 2024 18:10:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1734977418; bh=KJiNIh4OQ8lGKPrQdi0wcuPy97JBnl46/hHW1i4t3tY=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=gpKWtluUlZGTHIrJPAmGB6U7rzyOHVeL/7+8jNTJR5TJk5+DSjc3wlD7SmqQQ/MR9 jx3118rbCUufPPQ5XCcy20zPR+desvj+43nOn+SF3yUAswowI0Z7vec+Vhm3kOlysF qrFgd0OSVj6DAAS/SvAG4+mE4Qhh+1cJLXBDItyFuDxmofe4DsSsxgNTVquqGHUrj8 QrVSv7AdqfuIETh1VqizuP8KmR6giW21JGhynWc2JNenJbfViqxBS7fvm8yYa0Tk0U mqPP9BDRqUNBHV0Qk8ADl2aCb/2uoQuEfSC4o1Y3GpI9uMgvlqa01tH9BEGPq8lkFN vAfpKCAzesZYg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 33E0E3805DB2; Mon, 23 Dec 2024 18:10:38 +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] netrom: check buffer length before accessing it From: patchwork-bot+netdevbpf@kernel.org Message-Id: <173497743701.3921163.18071428597161743809.git-patchwork-notify@kernel.org> Date: Mon, 23 Dec 2024 18:10:37 +0000 References: <20241219082308.3942-1-rabbelkin@mail.ru> In-Reply-To: <20241219082308.3942-1-rabbelkin@mail.ru> To: Ilya Shchipletsov Cc: netdev@vger.kernel.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, linux-hams@vger.kernel.org, linux-kernel@vger.kernel.org, hfggklm@gmail.com Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Thu, 19 Dec 2024 08:23:07 +0000 you wrote: > Syzkaller reports an uninit value read from ax25cmp when sending raw message > through ieee802154 implementation. > > ===================================================== > BUG: KMSAN: uninit-value in ax25cmp+0x3a5/0x460 net/ax25/ax25_addr.c:119 > ax25cmp+0x3a5/0x460 net/ax25/ax25_addr.c:119 > nr_dev_get+0x20e/0x450 net/netrom/nr_route.c:601 > nr_route_frame+0x1a2/0xfc0 net/netrom/nr_route.c:774 > nr_xmit+0x5a/0x1c0 net/netrom/nr_dev.c:144 > __netdev_start_xmit include/linux/netdevice.h:4940 [inline] > netdev_start_xmit include/linux/netdevice.h:4954 [inline] > xmit_one net/core/dev.c:3548 [inline] > dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564 > __dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349 > dev_queue_xmit include/linux/netdevice.h:3134 [inline] > raw_sendmsg+0x654/0xc10 net/ieee802154/socket.c:299 > ieee802154_sock_sendmsg+0x91/0xc0 net/ieee802154/socket.c:96 > sock_sendmsg_nosec net/socket.c:730 [inline] > __sock_sendmsg net/socket.c:745 [inline] > ____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584 > ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638 > __sys_sendmsg net/socket.c:2667 [inline] > __do_sys_sendmsg net/socket.c:2676 [inline] > __se_sys_sendmsg net/socket.c:2674 [inline] > __x64_sys_sendmsg+0x307/0x490 net/socket.c:2674 > do_syscall_x64 arch/x86/entry/common.c:52 [inline] > do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 > entry_SYSCALL_64_after_hwframe+0x63/0x6b > > [...] Here is the summary with links: - netrom: check buffer length before accessing it https://git.kernel.org/netdev/net/c/a4fd163aed2e You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html