Warning: Permanently added '10.128.0.171' (ECDSA) to the list of known hosts.
syzkaller login: [   65.590365][ T4881] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[   66.110448][ T4881] usb 1-1: New USB device found, idVendor=0af0, idProduct=d058, bcdDevice= 0.00
[   66.119718][ T4881] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   66.128166][ T4881] usb 1-1: Product: syz
[   66.132639][ T4881] usb 1-1: Manufacturer: syz
[   66.137223][ T4881] usb 1-1: SerialNumber: syz
[   66.145961][ T4881] usb 1-1: config 0 descriptor??
[   66.410747][ T4881] hso 1-1:0.0: Can't find BULK IN endpoint
[   66.417095][ T4881] ------------[ cut here ]------------
[   66.422682][ T4881] WARNING: CPU: 1 PID: 4881 at net/core/dev.c:10998 unregister_netdevice_many+0x207/0x1790
[   66.432775][ T4881] Modules linked in:
[   66.436666][ T4881] CPU: 1 PID: 4881 Comm: kworker/1:3 Not tainted 5.13.0-rc2-next-20210518-syzkaller #0
[   66.446503][ T4881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   66.456757][ T4881] Workqueue: usb_hub_wq hub_event
[   66.461888][ T4881] RIP: 0010:unregister_netdevice_many+0x207/0x1790
[   66.468403][ T4881] Code: 05 00 00 31 ff 44 89 fe e8 56 fb 64 fa 45 84 ff 0f 85 49 ff ff ff e8 08 f5 64 fa 0f 1f 44 00 00 e8 fe f4 64 fa e8 f9 f4 64 fa <0f> 0b 4c 89 ef e8 5f 93 c5 fc 31 ff 41 89 c5 89 c6 e8 23 fb 64 fa
[   66.488082][ T4881] RSP: 0018:ffffc9000164ef30 EFLAGS: 00010293
[   66.494210][ T4881] RAX: 0000000000000000 RBX: ffff88802c2c4000 RCX: 0000000000000000
[   66.502256][ T4881] RDX: ffff88802ad45580 RSI: ffffffff8710ded7 RDI: 0000000000000003
[   66.510307][ T4881] RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000
[   66.518282][ T4881] R10: ffffffff8710deba R11: 0000000000000000 R12: ffffc9000164f000
[   66.526303][ T4881] R13: ffff88802c2c4060 R14: ffffc9000164efa0 R15: 0000000000000000
[   66.534361][ T4881] FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
[   66.543362][ T4881] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   66.549964][ T4881] CR2: 00005594411e7180 CR3: 000000000be8e000 CR4: 00000000001506e0
[   66.557985][ T4881] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   66.566091][ T4881] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   66.574145][ T4881] Call Trace:
[   66.577428][ T4881]  ? __mutex_lock+0x620/0x1120
[   66.582271][ T4881]  ? default_device_exit+0x300/0x300
[   66.587560][ T4881]  ? fs_reclaim_release+0x9c/0xf0
[   66.592760][ T4881]  ? mutex_lock_io_nested+0xf70/0xf70
[   66.598140][ T4881]  unregister_netdevice_queue+0x2dd/0x3c0
[   66.603915][ T4881]  ? unregister_netdevice_many+0x1790/0x1790
[   66.609904][ T4881