From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (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 63629149C6E for ; Mon, 5 Aug 2024 07:53:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722844414; cv=none; b=dOo12sNxKZEymaMmzF1ZS4lMDey8T/1vW/Boei+/zETzBhvq26T3MO6XMpz8btj1VVYSCInUQOQxufqOpJp7Nw10cnEKq3jQW+t2FcU8qzwsGS60ABC1F7tpOq9BHolU1bmlbGQiBa3/3FEzFxPkS7mDVdQeWFpi3wjGeiycggw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722844414; c=relaxed/simple; bh=Bp3rc8+B5ldb3Bqx5Ww3mPn3PoVGIkWHfPp62YhYsUQ=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Wev7BfXs+7PFLEvZjTcXguSUTosQybQTLqd/+w36eV2tH6GVVYvOavm4fB7sC15F8Z2JlH1ndhfe4icGdehxnziinvSBMAOr5ZuPrKjyG3gi5LZdU8Tt8OTOYo5Nhcrv3JQSyC2zlORqlAyudfhRhP7VcwOGf3M77OeFdrj+z6U= 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=209.85.166.197 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-il1-f197.google.com with SMTP id e9e14a558f8ab-39b331c43deso34459645ab.1 for ; Mon, 05 Aug 2024 00:53:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722844412; x=1723449212; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=/hqbRbVqhbQ+OstlrW2rds1P4zFC0nDVGhZEUadRwDw=; b=lHdFmbgtxT/iB6ne/zvNBJtMKTGdBLjyeG4oP0bwsUE+eMS0VwS56Qt7en0PhTXXOD qu5SeTkQwMjgkgDvHhXaTWhKELLAAreYtWMtirZ/1rX8nUnuRNf2/9O8IMzWlTNYQMQg beXqmx9WK3WvMdbcfdBJzhBiLBOZdXgIt/NT5CAHx0AWNWEjv6cXjfePCSG9mJLVGP/L Hz09fn/p66FxyeJjeuX6fpwGLXY2L4YTMSotQccE+a+9pTbU6Z9PJ8IayomecRzS4fpS utwLajGKOJzV0aUy8lKeSUKAWt93fXxJuV4bukJxOseKCYEDf2FeF1CCVKCnUhLESjzl /vhA== X-Forwarded-Encrypted: i=1; AJvYcCU4SeTpMFi0mQuj/p1dYoTQ+238+BUPPNYKfF+KbI7YtCoGEFeBYrZpR8ZRdfolIXvSrrVS+gDKjPlhuJ8xvnXqF4yfDPKB X-Gm-Message-State: AOJu0Yzlj1dOSzLpdjd7X3nw+W2cD0NcNDcsnA6+9IiyeBVjCfbd1mhg mDnF25ct2SQi/d+qLeiIAsJSsQUXb4c0olb3nWlGYfqnEfrt3mfTdAYRiAXlS+DGvquEttk3b7+ W1hUFcP2scwDeSfaBFX80vgzWFsjevP9vudAZg4jYexfZGmyknzeb7NU= X-Google-Smtp-Source: AGHT+IEDYkeqt7HFUSvX4jwT7u3O6uW3j9Cx0fOTeF17yjwzR7uc6Qvvk+lEZADqbWCTOQxP8R5+hOO3QnB+Y9ayKBEHlVldMUy4 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:19cb:b0:381:7405:7887 with SMTP id e9e14a558f8ab-39b1fb988fbmr9805935ab.2.1722844412538; Mon, 05 Aug 2024 00:53:32 -0700 (PDT) Date: Mon, 05 Aug 2024 00:53:32 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000367cd9061eeaf918@google.com> Subject: [syzbot] [net?] WARNING in l2tp_nl_cmd_tunnel_delete From: syzbot To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: ce21e520fdef Merge branch 'axienet-coding-style' into main git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=142043bd980000 kernel config: https://syzkaller.appspot.com/x/.config?x=fbd68ab0b66eda34 dashboard link: https://syzkaller.appspot.com/bug?extid=4316cfd66c99427ed79f 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/e1f21962505e/disk-ce21e520.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/60dc5181e0ee/vmlinux-ce21e520.xz kernel image: https://storage.googleapis.com/syzbot-assets/dd3a41695d4b/bzImage-ce21e520.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4316cfd66c99427ed79f@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6787 at kernel/workqueue.c:2259 __queue_work+0xcd3/0xf50 kernel/workqueue.c:2258 Modules linked in: CPU: 1 UID: 0 PID: 6787 Comm: syz.4.401 Not tainted 6.11.0-rc1-syzkaller-00213-gce21e520fdef #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:__queue_work+0xcd3/0xf50 kernel/workqueue.c:2258 Code: ff e8 11 84 36 00 90 0f 0b 90 e9 1e fd ff ff e8 03 84 36 00 eb 13 e8 fc 83 36 00 eb 0c e8 f5 83 36 00 eb 05 e8 ee 83 36 00 90 <0f> 0b 90 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc RSP: 0018:ffffc900034e72a8 EFLAGS: 00010087 RAX: ffffffff815ce274 RBX: ffff88802b015a00 RCX: 0000000000040000 RDX: ffffc900095ba000 RSI: 00000000000032b0 RDI: 00000000000032b1 RBP: 0000000000000000 R08: ffffffff815cd6d4 R09: 0000000000000000 R10: ffffc900034e7380 R11: fffff5200069ce71 R12: ffff88802adfd800 R13: ffff88802adfd9c0 R14: dffffc0000000000 R15: 0000000000000008 FS: 00007efdb6a706c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001640 CR3: 000000006e874000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queue_work_on+0x1c2/0x380 kernel/workqueue.c:2392 l2tp_nl_cmd_tunnel_delete+0x191/0x200 net/l2tp/l2tp_netlink.c:281 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x7f0/0x990 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597 ___sys_sendmsg net/socket.c:2651 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efdb5d779f9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007efdb6a70048 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007efdb5f06058 RCX: 00007efdb5d779f9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000005 RBP: 00007efdb5de58ee R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007efdb5f06058 R15: 00007ffdef381b08 --- 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