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, 0 new issues were detected and 1 were fixed. In total, 43 issues are still open and 87 have already been fixed. Some of the still happening issues: Ref Crashes Repro Title <1> 40131 Yes KASAN: slab-use-after-free Read in l2cap_unregister_user https://syzkaller.appspot.com/bug?extid=14b6d57fb728e27ce23c <2> 6964 Yes WARNING in call_timer_fn https://syzkaller.appspot.com/bug?extid=6fb78d577e89e69602f9 <3> 2709 Yes general protection fault in lock_sock_nested https://syzkaller.appspot.com/bug?extid=d3ccfb78a0dc16ffebe3 <4> 675 Yes general protection fault in h5_recv https://syzkaller.appspot.com/bug?extid=b5691bb559396b262064 <5> 507 Yes WARNING in hci_conn_timeout (2) https://syzkaller.appspot.com/bug?extid=fc4b5b2477d4ca272907 <6> 404 Yes general protection fault in bcsp_recv https://syzkaller.appspot.com/bug?extid=4ed6852d4da4606c93da <7> 351 Yes KASAN: slab-use-after-free Read in force_devcd_write https://syzkaller.appspot.com/bug?extid=bc71245e56f06e3127b7 <8> 258 No WARNING in l2cap_chan_del https://syzkaller.appspot.com/bug?extid=3272785b7a1fc9b510f6 <9> 256 Yes WARNING: ODEBUG bug in hci_release_dev (2) https://syzkaller.appspot.com/bug?extid=b170dbf55520ebf5969a <10> 170 Yes possible deadlock in l2cap_conn_del https://syzkaller.appspot.com/bug?extid=b71bb48c13bf3fed3692 --- 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.