Hello bluetooth maintainers/developers, This is a 31-day syzbot report for the bluetooth subsystem. All related reports/information can be found at: https://syzkaller.appspot.com/upstream/s/bluetooth During the period, 6 new issues were detected and 0 were fixed. In total, 35 issues are still open and 58 have been fixed so far. Some of the still happening issues: Ref Crashes Repro Title <1> 14730 Yes possible deadlock in rfcomm_sk_state_change https://syzkaller.appspot.com/bug?extid=d7ce59b06b3eb14fd218 <2> 7414 Yes possible deadlock in rfcomm_dlc_exists https://syzkaller.appspot.com/bug?extid=b69a625d06e8ece26415 <3> 4858 Yes WARNING in hci_conn_timeout https://syzkaller.appspot.com/bug?extid=2446dd3cb07277388db6 <4> 4864 Yes possible deadlock in hci_dev_do_close https://syzkaller.appspot.com/bug?extid=4e3a76c5c505a3f49083 <5> 2074 Yes possible deadlock in hci_rfkill_set_block https://syzkaller.appspot.com/bug?extid=f93d183bc91522d90de9 <6> 1321 Yes KASAN: slab-use-after-free Read in hci_send_acl https://syzkaller.appspot.com/bug?extid=a0c80b06ae2cb8895bc4 <7> 421 Yes WARNING in call_timer_fn https://syzkaller.appspot.com/bug?extid=6fb78d577e89e69602f9 <8> 170 No possible deadlock in hci_unregister_dev https://syzkaller.appspot.com/bug?extid=c933391d8e4089f1f53e <9> 120 No possible deadlock in discov_off https://syzkaller.appspot.com/bug?extid=f047480b1e906b46a3f4 <10> 61 Yes KASAN: slab-use-after-free Write in sco_sock_timeout https://syzkaller.appspot.com/bug?extid=4c0d0c4cde787116d465 --- 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@xxxxxxxxxxxxxxxx. To disable reminders for individual bugs, reply with the following command: #syz set <Ref> no-reminders To change bug's subsystems, reply with: #syz set <Ref> subsystems: new-subsystem You may send multiple commands in a single email message.