Warning: Permanently added '10.128.10.30' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   24.946921][   T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[   25.186868][   T12] usb 1-1: Using ep0 maxpacket: 8
[   25.306951][   T12] usb 1-1: config 0 has an invalid interface number: 220 but max is 0
[   25.315351][   T12] usb 1-1: config 0 has no interface number 0
[   25.321593][   T12] usb 1-1: config 0 interface 220 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 0
[   25.331527][   T12] usb 1-1: config 0 interface 220 altsetting 0 bulk endpoint 0x2 has invalid maxpacket 0
[   25.341369][   T12] usb 1-1: New USB device found, idVendor=10cf, idProduct=5502, bcdDevice=76.43
[   25.350400][   T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[   25.359545][   T12] usb 1-1: config 0 descriptor??
[   25.401164][   T12] kasan: CONFIG_KASAN_INLINE enabled
[   25.406544][   T12] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   25.414650][   T12] general protection fault: 0000 [#1] SMP KASAN
[   25.420880][   T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.3.0-rc7+ #0
[   25.428218][   T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   25.438250][   T12] Workqueue: usb_hub_wq hub_event
[   25.443248][   T12] RIP: 0010:vmk80xx_write_packet+0x75/0x260
[   25.449110][   T12] 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
[   25.468684][   T12] RSP: 0018:ffff8881da20f268 EFLAGS: 00010202
[   25.474720][   T12] RAX: dffffc0000000000 RBX: ffff8881d3e90540 RCX: 0000000000000000
[   25.482665][   T12] RDX: 0000000000000002 RSI: ffffffff846c22c3 RDI: ffff8881d3e905a8
[   25.490645][   T12] RBP: ffff8881d29ec280 R08: ffff8881da1f9800 R09: 0000000000000010
[   25.498587][   T12] R10: fffffbfff11ad7a0 R11: ffffffff88d6bd07 R12: ffff8881d5d72a80
[   25.506616][   T12] R13: 0000000000000010 R14: 0000000000000000 R15: ffff8881d41190c8
[   25.514568][   T12] FS:  0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000
[   25.523489][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.530059][   T12] CR2: ffffffffff600400 CR3: 00000001d3ee4000 CR4: 00000000001406f0
[   25.538004][   T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.545949][   T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.553893][   T12] Call Trace:
[   25.557159][   T12]  vmk80xx_auto_attach+0x13b1/0x17c0
[   25.562414][   T12]  comedi_auto_config+0x16e/0x240
[   25.567407][   T12]  usb_probe_interface+0x305/0x7a0
[   25.572485][   T12]  ? usb_probe_device+0x100/0x100
[   25.577483][   T12]  really_probe+0x281/0x6d0
[   25.581954][   T12]  driver_probe_device+0x101/0x1b0
[   25.587037][   T12]  __device_attach_driver+0x1c2/0x220
[   25.592387][   T12]  ? driver_allows_async_probing+0x160/0x160
[   25.598342][   T12]  bus_for_each_drv+0x162/0x1e0
[   25.603163][   T12]  ? bus_rescan_devices+0x20/0x20
[   25.608160][   T12]  ? _raw_spin_unlock_irqrestore+0x3e/0x50
[   25.613935][   T12]  ? lockdep_hardirqs_on+0x379/0x580
[   25.619197][   T12]  __device_attach+0x217/0x360
[   25.623928][   T12]  ? device_bind_driver+0xd0/0xd0
[   25.628921][   T12]  ? kobject_uevent_env+0x29e/0x1150
[   25.634178][   T12]  ? kobject_uevent_env+0x2a8/0x1150
[   25.639431][   T12]  bus_probe_device+0x1e4/0x290
[   25.644251][   T12]  ? blocking_notifier_call_chain+0x54/0xa0
[   25.650120][   T12]  device_add+0xae6/0x16f0
[   25.654514][   T12]  ? uevent_store+0x50/0x50
[   25.658989][   T12]  ? _raw_spin_unlock_irqrestore+0x3e/0x50
[   25.664766][   T12]  usb_set_configuration+0xdf6/0x1670
[   25.670110][   T12]  generic_probe+0x9d/0xd5
[   25.674501][   T12]  usb_probe_device+0x99/0x100
[   25.679245][   T12]  ? usb_suspend+0x620/0x620
[   25.683802][   T12]  really_probe+0x281/0x6d0
[   25.688275][   T12]  driver_probe_device+0x101/0x1b0
[   25.693357][   T12]  __device_attach_driver+0x1c2/0x220
[   25.698702][   T12]  ? driver_allows_async_probing+0x160/0x160
[   25.704649][   T12]  bus_for_each_drv+0x162/0x1e0
[   25.709470][   T12]  ? bus_rescan_devices+0x20/0x20
[   25.714473][   T12]  ? _raw_spin_unlock_irqrestore+0x3e/0x50
[   25.720250][   T12]  ? lockdep_hardirqs_on+0x379/0x580
[   25.725502][   T12]  __device_attach+0x217/0x360
[   25.730235][   T12]  ? device_bind_driver+0xd0/0xd0
[   25.735226][   T12]  ? kobject_uevent_env+0x29e/0x1150
[   25.740480][   T12]  ? kobject_uevent_env+0x2a8/0x1150
[   25.745738][   T12]  bus_probe_device+0x1e4/0x290
[   25.750565][   T12]  ? blocking_notifier_call_chain+0x54/0xa0
[   25.756426][   T12]  device_add+0xae6/0x16f0
[   25.760822][   T12]  ? uevent_store+0x50/0x50
[   25.765297][   T12]  usb_new_device.cold+0x6a4/0xe79
[   25.770377][   T12]  hub_event+0x1b5c/0x3640
[   25.774785][   T12]  ? hub_port_debounce+0x260/0x260
[   25.779866][   T12]  process_one_work+0x92b/0x1530
[   25.784773][   T12]  ? pwq_dec_nr_in_flight+0x310/0x310
[   25.790116][   T12]  ? do_raw_spin_lock+0x11a/0x280
[   25.795110][   T12]  worker_thread+0x96/0xe20
[   25.799583][   T12]  ? process_one_wor