Warning: Permanently added '10.128.1.110' (ECDSA) to the list of known hosts.
syzkaller login: [   52.167844][   T20] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[   52.417762][   T20] usb 1-1: Using ep0 maxpacket: 32
[   52.577857][   T20] usb 1-1: unable to get BOS descriptor or descriptor too short
[   52.917757][   T20] usb 1-1: string descriptor 0 read error: -22
[   52.927961][   T20] usb 1-1: New USB device found, idVendor=0af0, idProduct=6811, bcdDevice=d7.8a
[   52.942394][   T20] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   52.959098][   T20] usb 1-1: config 0 descriptor??
[   53.030553][   T20] hso 1-1:0.0: Can't find BULK IN endpoint
[   53.038616][   T20] ------------[ cut here ]------------
[   53.051806][   T20] WARNING: CPU: 1 PID: 20 at net/core/dev.c:10900 unregister_netdevice_many+0x1de/0x18e0
[   53.065617][   T20] Modules linked in:
[   53.072237][   T20] CPU: 1 PID: 20 Comm: kworker/1:0 Not tainted 5.12.0-rc6-syzkaller #0
[   53.086900][   T20] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.106809][   T20] Workqueue: usb_hub_wq hub_event
[   53.115894][   T20] RIP: 0010:unregister_netdevice_many+0x1de/0x18e0
[   53.127852][   T20] Code: 15 17 00 00 e8 f3 0c ed f9 4c 3b 6c 24 08 0f 84 90 01 00 00 e8 e3 0c ed f9 4c 89 ed e9 4b ff ff ff 48 8d 5d a0 0f 1f 44 00 00 <0f> 0b 48 89 ef e8 98 c0 4c fc 84 c0 0f 84 9b 00 00 00 e8 bb 0c ed
[   53.165795][   T20] RSP: 0018:ffffc90000da6ee8 EFLAGS: 00010246
[   53.173726][   T20] RAX: 0000000000000000 RBX: ffff88801ba04