[  OK  ] Reached target Login Prompts.
[  OK  ] Reached target Multi-User System.
[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.1.66' (ECDSA) to the list of known hosts.
syzkaller login: [   35.630487][    T7] usb 1-1: new full-speed USB device number 2 using dummy_hcd
[   36.029725][    T7] usb 1-1: unable to get BOS descriptor or descriptor too short
[   36.069848][    T7] usb 1-1: not running at top speed; connect to a high speed hub
[   36.179660][    T7] usb 1-1: config 3 has an invalid interface number: 150 but max is 0
[   36.190103][    T7] usb 1-1: config 3 contains an unexpected descriptor of type 0x1, skipping
[   36.198982][    T7] usb 1-1: config 3 has no interface number 0
[   36.205580][    T7] usb 1-1: config 3 interface 150 altsetting 127 has an invalid endpoint with address 0x80, skipping
[   36.217022][    T7] usb 1-1: config 3 interface 150 has no altsetting 0
[   36.459480][    T7] usb 1-1: string descriptor 0 read error: -22
[   36.466235][    T7] usb 1-1: New USB device found, idVendor=1ac7, idProduct=0001, bcdDevice=fb.bb
[   36.475853][    T7] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   36.522589][    T7] ------------[ cut here ]------------
[   36.528187][    T7] usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType 2
[   36.537315][    T7] WARNING: CPU: 0 PID: 7 at drivers/usb/core/urb.c:410 usb_submit_urb+0x14aa/0x1830
[   36.547354][    T7] Modules linked in:
[   36.551560][    T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.13.0-rc2-syzkaller #0
[   36.560267][    T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   36.570897][    T7] Workqueue: usb_hub_wq hub_event
[   36.576740][    T7] RIP: 0010:usb_submit_urb+0x14aa/0x1830
[   36.582734][    T7] Code: 84 4c 01 00 00 e8 a6 14 b3 fd 4c 89 f7 e8 4e a7 1b ff 45 89 e8 44 89 e1 48 89 ea 48 89 c6 48 c7 c7 c0 09 63 86 e8 18 f1 fb 01 <0f> 0b 49 8d 4f 5c 48 b8 00 00 00 00 00 fc ff df 48 89 ca 48 89 4c
[   36.603576][    T7] RSP: 0018:ffffc9000007eee0 EFLAGS: 00010286
[   36.610243][    T7] RAX: 0000000000000000 RBX: ffff888118707058 RCX: 0000000000000000
[   36.618848][    T7] RDX: ffff888100283680 RSI: ffffffff812a6013 RDI: fffff5200000fdce
[   36.627299][    T7] RBP: ffff88810a37a0c8 R08: 0000000000000001 R09: 0000000000000000
[   36.636055][    T7] R10: ffffffff814b996b R11: 0000000000000000 R12: 0000000080000280
[   36.644807][    T7] R13: 0000000000000002 R14: ffff8881187070a8 R15: ffff88810299f600
[   36.654326][    T7] FS:  0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000
[   36.663635][    T7] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.671264][    T7] CR2: 000056504f275160 CR3: 000000010fdff000 CR4: 00000000001506f0
[   36.680619][    T7] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   36.689013][    T7] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   36.697086][    T7] Call Trace:
[   36.700565][    T7]  usb_start_wait_urb+0x101/0x4c0
[   36.705631][    T7]  ? lock_downgrade+0x6e0/0x6e0
[   36.710999][    T7]  ? fs_reclaim_acquire+0xb2/0x160
[   36.716159][    T7]  ? usb_api_blocking_completion+0xa0/0xa0
[   36.722558][