Warning: Permanently added '10.128.10.34' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   36.040431][   T21] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[   36.280366][   T21] usb 1-1: Using ep0 maxpacket: 16
[   36.400450][   T21] usb 1-1: config 0 has an invalid interface number: 157 but max is 0
[   36.408694][   T21] usb 1-1: config 0 has no interface number 0
[   36.414886][   T21] usb 1-1: config 0 interface 157 altsetting 0 bulk endpoint 0xA has invalid maxpacket 0
[   36.425013][   T21] usb 1-1: config 0 interface 157 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 1
[   36.435736][   T21] usb 1-1: New USB device found, idVendor=10cf, idProduct=5500, bcdDevice=9d.a6
[   36.444833][   T21] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[   36.454217][   T21] usb 1-1: config 0 descriptor??
[   36.494309][   T21] kasan: CONFIG_KASAN_INLINE enabled
[   36.499731][   T21] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   36.508026][   T21] general protection fault: 0000 [#1] SMP KASAN
[   36.514272][   T21] CPU: 1 PID: 21 Comm: kworker/1:1 Not tainted 5.2.0-rc6+ #15
[   36.521932][   T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   36.532238][   T21] Workqueue: usb_hub_wq hub_event
[   36.537255][   T21] RIP: 0010:vmk80xx_write_packet+0x75/0x260
[   36.543221][   T21] Code: 48 8d 7b 68 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 d3 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 6b 68 4c 89 ea 48 c1 ea 03 <0f> b6 04 02 4c 89 ea 83 e2 07 38 d0 7f 08 84 c0 0f 85 84 01 00 00
[   36.563243][   T21] RSP: 0018:ffff8881d9eff258 EFLAGS: 00010202
[   36.569297][   T21] RAX: dffffc0000000000 RBX: ffff8881d0f333c0 RCX: 0000000000000000
[   36.577546][   T21] RDX: 0000000000000002 RSI: ffffffff846812d3 RDI: ffff8881d0f33428
[   36.585996][   T21] RBP: ffff8881d0acea00 R08: ffff8881d9e36000 R09: 0000000000000010
[   36.593952][   T21] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881d08d9980
[   36.601916][   T21] R13: 0000000000000010 R14: 0000000000000000 R15: ffff8881d0eb7ae8
[   36.609982][   T21] FS:  0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000
[   36.618899][   T21] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.625459][   T21] CR2: 00007fde98068000 CR3: 00000001d2b34000 CR4: 00000000001406e0
[   36.633423][   T21] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   36.641431][   T21] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   36.649770][   T21] Call Trace:
[   36.653048][   T21]  vmk80xx_auto_attach+0x13b1/0x17c0
[   36.658366][   T21]  comedi_auto_config+0x16e/0x250
[   36.663495][   T21]  usb_probe_interface+0x305/0x7a0
[   36.668682][   T21]  ? usb_probe_device+0x100/0x100
[   36.673840][   T21]  really_probe+0x281/0x660
[   36.678332][   T21]  driver_probe_device+0x104/0x210
[   36.683432][   T21]  __device_attach_driver+0x1c2/0x220
[   36.688939][   T21]  ? driver_allows_async_probing+0x160/0x160
[   36.694909][   T21]  bus_for_each_drv+0x15c/0x1e0
[   36.699761][   T21]  ? bus_rescan_devices+0x20/0x20
[   36.704958][   T21]  ? _raw_spin_unlock_irqrestore+0x3e/0x50
[   36.711097][   T21]  ? lockdep_hardirqs_on+0x379/0x580
[   36.716573][   T21]  __device_attach+0x217/0x360
[   36.721600][   T21]  ? device_bind_driver+0xd0/0xd0
[   36.726957][   T21]  ? kobject_uevent_env+0x29e/0x1150
[   36.732502][   T21]  ? kobject_uevent_env+0x2a8/0x1150
[   36.738036][   T21]  bus_probe_device+0x1e4/0x290
[   36.742874][   T21]  ? blocking_notifier_call_chain+0x54/0xa0
[   36.748840][   T21]  device_add+0xae6/0x16f0
[   36.753370][   T21]  ? uevent_store+0x50/0x50
[   36.757948][   T21]  ? _raw_spin_unlock_irqrestore+0x3e/0x50
[   36.763747][   T21]  usb_set_configuration+0xdf6/0x1670
[   36.769116][   T21]  generic_probe+0x9d/0xd5
[   36.773517][   T21]  usb_probe_device+0x99/0x100
[   36.778359][   T21]  ? usb_suspend+0x620/0x620
[   36.783111][   T21]  really_probe+0x281/0x660
[   36.787607][   T21]  driver_probe_device+0x104/0x210
[   36.792921][   T21]  __device_attach_driver+0x1c2/0x220
[   36.798688][   T21]  ? driver_allows_async_probing+0x160/0x160
[   36.806818][   T21]  bus_for_each_drv+0x15c/0x1e0
[   36.811656][   T21]  ? bus_rescan_devices+0x20/0x20
[   36.816674][   T21]  ? _raw_spin_unlock_irqrestore+0x3e/0x50
[   36.822473][   T21]  ? lockdep_hardirqs_on+0x379/0x580
[   36.827748][   T21]  __device_attach+0x217/0x360
[   36.832673][   T21]  ? device_bind_driver+0xd0/0xd0
[   36.837693][   T21]  ? kobject_uevent_env+0x29e/0x1150
[   36.843088][   T21]  ? kobject_uevent_env+0x2a8/0x1150
[   36.848363][   T21]  bus_probe_device+0x1e4/0x290
[   36.853288][   T21]  ? blocking_notifier_call_chain+0x54/0xa0
[   36.859345][   T21]  device_add+0xae6/0x16f0
[   36.863839][   T21]  ? uevent_store+0x50/0x50
[   36.868492][   T21]  usb_new_device.cold+0x6a4/0xe61
[   36.873597][   T21]  hub_event+0x1abd/0x3550
[   36.878014][   T21]  ? hub_port_debounce+0x260/0x260
[   36.883113][   T21]  process_one_work+0x905/0x1570
[   36.888186][   T21]  ? pwq_dec_nr_in_flight+0x310/0x310
[   36.893970][   T21]  ? do_