From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2CCC846AF for ; Sun, 14 Apr 2024 00:26:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713054390; cv=none; b=pxFOuYu27x3zW7TPzfPrCOBxtWiZ2r279HBSmrqKcgP3jUSAKQsjtwhtDKkvkSyBqNT7zB8v6IBOc7GFFnQACe8U0ztNuK9jl0t9+dTFGNUpw60M0X3kjxRYVN8k1inPq0+t9rFFqJPvpKWpjjNLRt1Zf6ccR6y7fgJ93dxtUwo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713054390; c=relaxed/simple; bh=2amr6wG99uO/mIM3nGfbYUX9VWalVE/e1WEzqM/t2oA=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=ZvyXcUH28V18aXkmTAWkFry370btakuuhpaTCoJRCz8PrS9nyILbKjQ4nJ4/W0LeURNoz9UFeHLkHTmnPX+vZgFBWKHyRO2eUjts7+OsST2QxcjHfPtxejJA6esWMgA72zlaPWi8PbCaFeVN5hAWzuag4e5KVmdczoWpRStZ58I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.70 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f70.google.com with SMTP id ca18e2360f4ac-7cc7a6a04d9so270443839f.3 for ; Sat, 13 Apr 2024 17:26:28 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1713054388; x=1713659188; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=FsIqhJuQNmACm2Ng6LAS1JB1TTW5nlMwGw5jr/sCgBA=; b=Zso+sFO/lOdU7/YMH9SGhzohpPqn5QSWusNhlSRXRCNDAGmv4WDRI07jAGTrDMKaMT Xpjo+BlkI7uo10VzNV5lj305XV+jPx4eIZ2lcFoj9FIXetsYRpMTs5F09TevAZn6/L0G WHdep4of0HcStaV/DNdRgxbsstXLK/xdHWG+gFDcrX8P1LK2nkFnVLPsdJBJLGKHQ7JE 3Am937VkzrG7f7Dg3Oz2O3//y2w64nLMdKDinjDd5U96r3GHRgCqyToZlFHldXPVjKhl CnNc6LdJEp3BHtgtenf7uT0R0/DL9v1Qq7Bw7ULUEJgWwJl7oMh0eWghD36irbhAZBIt 84KA== X-Forwarded-Encrypted: i=1; AJvYcCVw20Yi1p0WhrES+9aXjSdOR7thNsJ1gHIBMVxKGxTmbH9moAPNzOPaN7fKan3Rvlg31n6BXYEwNw/LDEjmu73I6sE6Hu8B X-Gm-Message-State: AOJu0YxjDY3AhbcP0RezE7k/qHgrOkX6LsE1lxb8U8mPWCyiRpxQ0YWg oYX9T1s8t+elvNXQB+ZuzdfMNIclCT+ShWgkGbIdLIMow7RXkoBj/TtHpsmcgQo8yA/8834XCug PEQrDCNhi3/OTJuh4d1G0/8EQlPOkoruydSnHr+UqAhOpnncTL4P9SPo= X-Google-Smtp-Source: AGHT+IGXSZRjxeasgIby8IVsdEwfLp48enTRZALg+PBa66YzSIy9ESl04YsfvOzSZg4pjfnNcKzkHoVfYcckRShj/tQRyp8YLS2E Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a6f:b0:369:f7ca:a361 with SMTP id w15-20020a056e021a6f00b00369f7caa361mr478849ilv.1.1713054388468; Sat, 13 Apr 2024 17:26:28 -0700 (PDT) Date: Sat, 13 Apr 2024 17:26:28 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004e50e40616038e72@google.com> Subject: [syzbot] [bluetooth?] WARNING in l2cap_chan_send From: syzbot To: johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, luiz.dentz@gmail.com, marcel@holtmann.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: f99c5f563c17 Merge tag 'nf-24-03-21' of git://git.kernel.o.. git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=14f69bd3180000 kernel config: https://syzkaller.appspot.com/x/.config?x=6fb1be60a193d440 dashboard link: https://syzkaller.appspot.com/bug?extid=b6919040d9958e2fc1ae compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/65d3f3eb786e/disk-f99c5f56.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/799cf7f28ff8/vmlinux-f99c5f56.xz kernel image: https://storage.googleapis.com/syzbot-assets/ab26c60c3845/bzImage-f99c5f56.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b6919040d9958e2fc1ae@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8027 at kernel/workqueue.c:2322 __queue_work+0xc6a/0xec0 kernel/workqueue.c:2321 Modules linked in: CPU: 1 PID: 8027 Comm: syz-executor.4 Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__queue_work+0xc6a/0xec0 kernel/workqueue.c:2321 Code: ff e8 3a e0 35 00 eb 21 e8 33 e0 35 00 eb 1a e8 2c e0 35 00 eb 13 e8 25 e0 35 00 90 0f 0b 90 e9 74 fd ff ff e8 17 e0 35 00 90 <0f> 0b 90 48 83 c4 68 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc RSP: 0018:ffffc9000305f4c0 EFLAGS: 00010083 RAX: ffffffff815f103d RBX: ffff888022ff3c00 RCX: 0000000000040000 RDX: ffffc90012785000 RSI: 0000000000016230 RDI: 0000000000016231 RBP: 0000000000000000 R08: ffffffff815f0513 R09: 1ffff1100d0621be R10: dffffc0000000000 R11: ffffed100d0621bf R12: dffffc0000000000 R13: ffff88802e5ad9c0 R14: ffff88802e5ad800 R15: 0000000000000008 FS: 00007f9fcf6a96c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001300 CR3: 0000000062a38000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queue_work_on+0x14f/0x250 kernel/workqueue.c:2435 l2cap_chan_send+0x3d6/0x2680 l2cap_sock_sendmsg+0x1b4/0x2c0 net/bluetooth/l2cap_sock.c:1139 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [inline] __sys_sendmmsg+0x3b2/0x740 net/socket.c:2724 __do_sys_sendmmsg net/socket.c:2753 [inline] __se_sys_sendmmsg net/socket.c:2750 [inline] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2750 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f9fce87de69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9fcf6a90c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f9fce9abf80 RCX: 00007f9fce87de69 RDX: 00000000ffffff80 RSI: 0000000020004100 RDI: 0000000000000006 RBP: 00007f9fce8ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000010040 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f9fce9abf80 R15: 00007ffd6dcb5768 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup