From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) (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 5BC9C1C691 for ; Sun, 17 Mar 2024 15:15:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710688528; cv=none; b=HWF4d5BwqxX4uGNzd4yVXljP7A08TU+dsElR4a+cmUsd6D3w60rxny1OiUsDiDRIdrIETKqvs8cgXjj+oYezsH4NEwVgJXnpk2TzXG17KigYWUvtyYJ7QGwtRw/OsgM+yiO5IiTdAbpf507oq26+R9GTr0ZaaPKZmP22pms0ajs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710688528; c=relaxed/simple; bh=JNMyT6Pp9T/AN28IGslHtW/8uUWOtjEo+0vtv76E6ok=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=R/ScU77aNA3XD+ud6u/Ckfq8PGDBgFwXzAsqhjS3+90uHn9kKNLJT67F3O4KY9zG/iuOm5v6jM8bPBXYHo5BMfxjFWEZ0b2hMhOjVieNGe6yBRFgmePGC/o3Si+pwpTvDpm496J/z8DkmEdf743j+YJ0ox0rJoyY6KQITWjn4+0= 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=209.85.166.69 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-f69.google.com with SMTP id ca18e2360f4ac-7cc01445f6bso186330239f.3 for ; Sun, 17 Mar 2024 08:15:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710688525; x=1711293325; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=c4MegSmNgbP67cM4Eg9+6Ly/Lj6iOzU/s39gtIU5YNA=; b=oPa5IrYuEBE1gPMbn47C3mQdORsbyfvW3xMWlSWxiPejQfUgZpSA0WjJwq9HxSIr2S krszPJzbMtel9+KF7JIPSBOfpSYa9gruEAn91bkZuEbpfdVTPNJT0ZCtGqcQyUxjX/Pr M8oBRDj7v2Kp7BiMkmknlc+D9C5PgmxBIHl0GE+D7gq15ekHrOGzCNot8yNk6PKmLtYr ZQQMbAi6l4jHaCtlNjEZSFE2TQ0iydUpDUA6SrSI+xCC0Z/6GNQEJf8yBKrfePfKn09P +9QAFCRfYGmAA2ntD0+S+1ivmMEgkOihsdzZCtKWcRYOnI0aBO0w8M6MeO9B4HlscnKq 0nFg== X-Forwarded-Encrypted: i=1; AJvYcCXH5VXEni8vCDKqxvZCG50P6O7ltAFEemXfXQsj3pjOvwnc9s1wNYbEKdZ87am8HJAqPy4JF+LrnVIilPimHiEcBbpVBKrQ58gzE8RQ9/Ag X-Gm-Message-State: AOJu0Yxu9iJLkpOMI6gN2+f35VAYHlOudHL2vrtMcJKSeXtCam4PFhhG AywMyDwmF3zUiRT2O9pmLreknaBTOfMG3x/t57GW3mQ0WTyDGWROTgOGt5A2INLG2MdxFqH2tVy zx0/XlWpvr/VxI0nA9iuEC89q4VjFRbNmaF5rL3K52Ao3qyn4BiZDs+E= X-Google-Smtp-Source: AGHT+IGOI7cZzAMSL6yMplFa5y6AX80e1XSk0w8sadvRzZ0r+OU3OxUW29wdtXGii0ZbuxRyGaN5AC7dkymb2ah/cEDBUYSS2t8i Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:502:b0:366:b7c0:9c72 with SMTP id d2-20020a056e02050200b00366b7c09c72mr89508ils.3.1710688525553; Sun, 17 Mar 2024 08:15:25 -0700 (PDT) Date: Sun, 17 Mar 2024 08:15:25 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e327b00613dcb50d@google.com> Subject: [syzbot] [bluetooth?] WARNING in l2cap_chan_del From: syzbot To: johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, luiz.dentz@gmail.com, marcel@holtmann.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: b0546776ad3f Merge tag 'printk-for-6.9' of git://git.kerne.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15bf5b99180000 kernel config: https://syzkaller.appspot.com/x/.config?x=4ae24324b37fdefe dashboard link: https://syzkaller.appspot.com/bug?extid=3272785b7a1fc9b510f6 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: i386 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-b0546776.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/a07801fab32c/vmlinux-b0546776.xz kernel image: https://storage.googleapis.com/syzbot-assets/0696c91a7e74/bzImage-b0546776.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3272785b7a1fc9b510f6@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 9 at kernel/workqueue.c:2322 __queue_work+0xc44/0x1170 kernel/workqueue.c:2321 Modules linked in: CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.8.0-syzkaller-05292-gb0546776ad3f #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 Workqueue: events l2cap_chan_timeout RIP: 0010:__queue_work+0xc44/0x1170 kernel/workqueue.c:2321 Code: 38 d0 7c 09 84 d2 74 05 e8 89 f6 8f 00 8b 5b 2c 31 ff 83 e3 20 89 de e8 5a 64 34 00 85 db 0f 85 fe 00 00 00 e8 6d 69 34 00 90 <0f> 0b 90 e9 1c f9 ff ff e8 5f 69 34 00 90 0f 0b 90 e9 cb f8 ff ff RSP: 0018:ffffc900003b7ab8 EFLAGS: 00010093 RAX: 0000000000000000 RBX: ffff888014c94000 RCX: ffffffff815ae3ea RDX: ffff888015704880 RSI: ffffffff815928d3 RDI: ffff888014c94008 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000200000 R11: 0000000000000004 R12: ffff88801f8648c0 R13: 0000000000000008 R14: ffff88801f8648c8 R15: ffff88804bf9e000 FS: 0000000000000000(0000) GS:ffff88802c200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000030e25000 CR3: 00000000277b0000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __queue_delayed_work+0x21b/0x2e0 kernel/workqueue.c:2551 queue_delayed_work_on+0x10e/0x130 kernel/workqueue.c:2595 queue_delayed_work include/linux/workqueue.h:620 [inline] hci_conn_drop include/net/bluetooth/hci_core.h:1621 [inline] hci_conn_drop include/net/bluetooth/hci_core.h:1591 [inline] l2cap_chan_del+0x5a3/0x930 net/bluetooth/l2cap_core.c:647 l2cap_chan_close+0xff/0xa30 net/bluetooth/l2cap_core.c:820 l2cap_chan_timeout+0x17d/0x2f0 net/bluetooth/l2cap_core.c:432 process_one_work+0x902/0x19d0 kernel/workqueue.c:3254 process_scheduled_works kernel/workqueue.c:3335 [inline] worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416 kthread+0x2c1/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 --- 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