Hello usb maintainers/developers, This is a 31-day syzbot report for the usb subsystem. All related reports/information can be found at: https://syzkaller.appspot.com/upstream/s/usb During the period, 3 new issues were detected and 1 were fixed. In total, 81 issues are still open and 390 have already been fixed. Some of the still happening issues: Ref Crashes Repro Title <1> 17047 Yes KASAN: slab-use-after-free Read in hdm_disconnect https://syzkaller.appspot.com/bug?extid=916742d5d24f6c254761 <2> 5297 Yes KASAN: use-after-free Read in v4l2_fh_init https://syzkaller.appspot.com/bug?extid=c025d34b8eaa54c571b8 <3> 2703 Yes WARNING in usb_free_urb https://syzkaller.appspot.com/bug?extid=b466336413a1fba398a5 <4> 2176 Yes KASAN: use-after-free Read in v4l2_fh_open https://syzkaller.appspot.com/bug?extid=b2391895514ed9ef4a8e <5> 1454 Yes possible deadlock in input_inject_event https://syzkaller.appspot.com/bug?extid=79c403850e6816dc39cf <6> 1418 Yes INFO: task hung in usbdev_open (2) https://syzkaller.appspot.com/bug?extid=b73659f5bb96fac34820 <7> 1396 Yes KASAN: use-after-free Read in em28xx_init_extension (2) https://syzkaller.appspot.com/bug?extid=99d6c66dbbc484f50e1c <8> 907 Yes WARNING in enable_work https://syzkaller.appspot.com/bug?extid=7053fbd8757fecbbe492 <9> 734 Yes INFO: task hung in hub_port_init (3) https://syzkaller.appspot.com/bug?extid=b6f11035e572f08bc20f <10> 532 Yes WARNING in usb_tx_block/usb_submit_urb https://syzkaller.appspot.com/bug?extid=355c68b459d1d96c4d06 --- 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.