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 7DAFC15099C for ; Mon, 8 Jul 2024 23:27:21 +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=1720481242; cv=none; b=onE0ZpFFz6yYvnTdFtTZGKebujDGlcCT8XJIwRKuny3rO2Rz8hanRg4moMrjguzRxn6rgsYnnTSi1aCqE46DbkzArMhPB2A2Dtk5tLE/M1lgP8Vxwfd9XXyz+R72AXwatoPtXFml6v0MQntf8nt4fRiO5nYVQSKH2561ps4UwyI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720481242; c=relaxed/simple; bh=V+9VyyFEUU5Tt0/zldChMRUa7x7UuysycddEsA6gplQ=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Zaj69+bNFnyPAL7vkg7jnD/eAJPuBatApJeFAiHzjuil0BC/ljBdwBgoLQ6L1aSZ34NyoOsif5eaUkfXogTQE2HmldnMi/l67mVTELQPUC8e4RgsdEM/oPBadS8f9TJ6KuEHKC/pWl8mKbu4ph+8HBw8RGyF8EfGQLAJ4kiNyMM= 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-7f61da4d7beso555898939f.2 for ; Mon, 08 Jul 2024 16:27:21 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720481240; x=1721086040; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=PagM1HHYLYDwKyHAo5/GE81TCstWTLOvOaKxe8EMN2E=; b=qKiIWGYP4sxQoyBK6IKZCOr4Bx5p2WXQoqJxlaMq4pJxU7K6n+clTSR2O8/UNpbnYY aHkoN9b1HfY06Fp6LJJL3exynCmRAc2Mn5HGSx1QjssZsoGOLeQtI0dKhSBJ7S9g3xPY yZfP8DyuHcWld/JWQrLQxIkwy2r0ZiUhdK/LB7hUjfb2yDvCUdh+ZFvm5jGvpNCjpIxP WnaBd59oKXJmUXlRdKi5wXn3orVroFisM4xx1LZaNeQvKQby0valh8TK9iK16O8iBVrm E0g+rLUme1V81G1vGfkGN9C4thIVLgDvlEo/glB1+3AAJYcD8VQ4/SCzVXAl3ZgnVVco Peeg== X-Forwarded-Encrypted: i=1; AJvYcCV1Br5ImL7gJr0KshxFdE0t0Mfi1baJiGRFAKe7cn4UbNt37mWhJhIMAbIWbpH6256bTEgPmBnWPIa8SR65qXh97Y9bhwxn/7707G81Lg6B X-Gm-Message-State: AOJu0Yx8E0xRCVN6aod1gxt1Oq8ABddV85fjEGvQAZwTREY7sALLjWJA O4XRZ94azsiMJI5BZU0TWUJp07BUUI9dCS6IwKUdS1r+p62DIt3uaYWwuju3o1kU+YBqOLUmmEO t4T2FTEMc4G2nlwE0ikY3EC9qghGzYtQLk+ChYHysLyE9UG6ah/o58wM= X-Google-Smtp-Source: AGHT+IHP4GE2cKxixBz5JFaBEuv2wNkbPf7C3VKDUwFVLPxxU5KtaWowJms+mFYtdJyJPvGznU/vO1hi9uTCEjiAirxob37L21Ko Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:710a:b0:4b9:def5:3dcb with SMTP id 8926c6da1cb9f-4c0b29ba495mr74461173.2.1720481240704; Mon, 08 Jul 2024 16:27:20 -0700 (PDT) Date: Mon, 08 Jul 2024 16:27:20 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000031fb62061cc4c118@google.com> Subject: [syzbot] [bluetooth?] BUG: workqueue leaked atomic, lock or RCU: kworker/u9:NUM[NUM] 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: c6653f49e4fd Merge tag 'powerpc-6.10-4' of git://git.kerne.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=170a1059980000 kernel config: https://syzkaller.appspot.com/x/.config?x=1ace69f521989b1f dashboard link: https://syzkaller.appspot.com/bug?extid=733a96463546d3026b60 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/a56f9eb616fa/disk-c6653f49.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2f09515c2f1b/vmlinux-c6653f49.xz kernel image: https://storage.googleapis.com/syzbot-assets/fdc471b5cbac/bzImage-c6653f49.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+733a96463546d3026b60@syzkaller.appspotmail.com BUG: workqueue leaked atomic, lock or RCU: kworker/u9:0[53] preempt=0x00000000 lock=0->1 RCU=0->0 workfn=hci_rx_work 1 lock held by kworker/u9:0/53: #0: ffff88802f56d518 (&chan->lock/1){+.+.}-{3:3}, at: l2cap_chan_lock include/net/bluetooth/l2cap.h:827 [inline] #0: ffff88802f56d518 (&chan->lock/1){+.+.}-{3:3}, at: l2cap_conless_channel net/bluetooth/l2cap_core.c:6764 [inline] #0: ffff88802f56d518 (&chan->lock/1){+.+.}-{3:3}, at: l2cap_recv_frame+0x7ca/0x10830 net/bluetooth/l2cap_core.c:6830 CPU: 1 PID: 53 Comm: kworker/u9:0 Not tainted 6.10.0-rc6-syzkaller-00223-gc6653f49e4fd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Workqueue: hci1 hci_rx_work Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 process_one_work kernel/workqueue.c:3269 [inline] process_scheduled_works+0x1121/0x1830 kernel/workqueue.c:3329 worker_thread+0x86d/0xd50 kernel/workqueue.c:3409 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 --- 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