Warning: Permanently added '10.128.15.195' (ECDSA) to the list of known hosts.
syzkaller login: [   66.334100][ T3189] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[   66.574047][ T3189] usb 1-1: Using ep0 maxpacket: 32
[   66.734087][ T3189] usb 1-1: unable to get BOS descriptor or descriptor too short
[   67.054083][ T3189] usb 1-1: string descriptor 0 read error: -22
[   67.060835][ T3189] usb 1-1: New USB device found, idVendor=0af0, idProduct=6811, bcdDevice=d7.8a
[   67.072225][ T3189] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   67.084528][ T3189] usb 1-1: config 0 descriptor??
[   67.129257][ T3189] hso 1-1:0.0: Can't find BULK IN endpoint
[   67.136778][ T3189] ------------[ cut here ]------------
[   67.142630][ T3189] WARNING: CPU: 1 PID: 3189 at net/core/dev.c:9402 rollback_registered_many+0x1f0/0x14c0
[   67.154589][ T3189] Modules linked in:
[   67.158539][ T3189] CPU: 1 PID: 3189 Comm: kworker/1:2 Not tainted 5.10.0-rc7-syzkaller #0
[   67.167962][ T3189] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   67.178665][ T3189] Workqueue: usb_hub_wq hub_event
[   67.184059][ T3189] RIP: 0010:rollback_registered_many+0x1f0/0x14c0
[   67.190684][ T3189] Code: 05 00 00 31 ff 44 89 fe e8 cd 4b 7d fa 45 84 ff 0f 85 49 ff ff ff e8 af 53 7d fa 0f 1f 44 00 00 e8 a5 53 7d fa e8 a0 53 7d fa <0f> 0b 4c 89 ef e8 56 9a c7 fc 31 ff 41 89 c5 89 c6 e8 9a 4b 7d fa
[   67.210706][ T3189] RSP: 0018:ffffc90001ffef80 EFLAGS: 00010293
[   67.216952][ T3189] RAX: 0000000000000000 RBX: ffff888026f9a000 RCX: ffffffff86f2b0b3
[   67.225444][ T3189] RDX: ffff88801a639a40 RSI: ffffffff86f2b0d0 RDI: 0000000000000001
[   67.233620][ T3189] RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff8c9278e7
[   67.241864][ T3189] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90001fff048
[   67.249992][ T3189] R13: ffff888026f9a068 R14: ffffc90001ffeff0 R15: 0000000000000000
[   67.258346][ T3189] FS:  0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
[   67.267741][ T3189] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.274958][ T3189] CR2: 000055ea87e566b8 CR3: 00000000147a6000 CR4: 00000000001506e0
[   67.283056][ T3189] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   67.291534][ T3189] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   67.300119][ T3189] Call Trace:
[   67.303563][ T3189]  ? __mutex_lock+0x626/0x10e0
[   67.308863][ T3189]  ? dev_queue_xmit_nit+0xac0/0xac0
[   67.314566][ T3189]  ? mutex_lock_io_nested+0xf60/0xf60
[   67.320264][ T3189]  unregister_netdevice_queue+0x2dd/0x570
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