Warning: Permanently added '10.128.0.35' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.510764][ T12] usb 1-1: new low-speed USB device number 2 using dummy_hcd [ 23.870829][ T12] usb 1-1: config 58 has an invalid interface number: 142 but max is 0 [ 23.879155][ T12] usb 1-1: config 58 has no interface number 0 [ 23.885695][ T12] usb 1-1: config 58 interface 142 altsetting 0 endpoint 0xF is Bulk; changing to Interrupt [ 23.895828][ T12] usb 1-1: config 58 interface 142 altsetting 0 endpoint 0x8F is Bulk; changing to Interrupt [ 23.906044][ T12] usb 1-1: New USB device found, idVendor=10cf, idProduct=5500, bcdDevice= f.83 [ 23.915092][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 23.963525][ T12] kasan: CONFIG_KASAN_INLINE enabled [ 23.969012][ T12] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 23.977364][ T12] general protection fault: 0000 [#1] SMP KASAN [ 23.983610][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.3.0-rc5+ #28 [ 23.991040][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.001273][ T12] Workqueue: usb_hub_wq hub_event [ 24.006338][ T12] RIP: 0010:vmk80xx_write_packet+0x75/0x260 [ 24.012324][ 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 [ 24.032489][ T12] RSP: 0018:ffff8881da20f268 EFLAGS: 00010202 [ 24.038643][ T12] RAX: dffffc0000000000 RBX: ffff8881d38800c0 RCX: 0000000000000000 [ 24.046704][ T12] RDX: 0000000000000002 RSI: ffffffff846c0293 RDI: ffff8881d3880128 [ 24.054677][ T12] RBP: ffff8881d333bb80 R08: ffff8881da1f9800 R09: 0000000000000010 [ 24.062854][ T12] R10: fffffbfff11ad7a0 R11: ffffffff88d6bd07 R12: ffff8881d3a2ee80 [ 24.070825][ T12] R13: 0000000000000010 R14: 0000000000000000 R15: ffff8881d5178008 [ 24.078882][ T12] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 24.088079][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.094645][ T12] CR2: 00007f3c73805000 CR3: 00000001c75f5000 CR4: 00000000001406f0 [ 24.102958][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.110923][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.118890][ T12] Call Trace: [ 24.122178][ T12] vmk80xx_auto_attach+0x13b1/0x17c0 [ 24.127577][ T12] comedi_auto_config+0x16e/0x240 [ 24.132750][ T12] usb_probe_interface+0x305/0x7a0 [ 24.137920][ T12] ? usb_probe_device+0x100/0x100 [ 24.143139][ T12] really_probe+0x281/0x6d0 [ 24.147675][ T12] driver_probe_device+0x101/0x1b0 [ 24.152808][ T12] __device_attach_driver+0x1c2/0x220 [ 24.158274][ T12] ? driver_allows_async_probing+0x160/0x160 [ 24.164228][ T12] bus_for_each_drv+0x162/0x1e0 [ 24.169165][ T12] ? bus_rescan_devices+0x20/0x20 [ 24.174278][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 24.180150][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 24.185645][ T12] __device_attach+0x217/0x360 [ 24.190397][ T12] ? device_bind_driver+0xd0/0xd0 [ 24.195421][ T12] ? kobject_uevent_env+0x29e/0x1160 [ 24.200704][ T12] ? kobject_uevent_env+0x2a8/0x1160 [ 24.205978][ T12] bus_probe_device+0x1e4/0x290 [ 24.211056][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 24.216939][ T12] device_add+0xae6/0x16f0 [ 24.221460][ T12] ? uevent_store+0x50/0x50 [ 24.226057][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 24.232002][ T12] usb_set_configuration+0xdf6/0x1670 [ 24.237367][ T12] generic_probe+0x9d/0xd5 [ 24.241778][ T12] usb_probe_device+0x99/0x100 [ 24.246521][ T12] ? usb_suspend+0x620/0x620 [ 24.251090][ T12] really_probe+0x281/0x6d0 [ 24.255577][ T12] driver_probe_device+0x101/0x1b0 [ 24.260801][ T12] __device_attach_driver+0x1c2/0x220 [ 24.266173][ T12] ? driver_allows_async_probing+0x160/0x160 [ 24.272258][ T12] bus_for_each_drv+0x162/0x1e0 [ 24.277181][ T12] ? bus_rescan_devices+0x20/0x20 [ 24.282210][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 24.288251][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 24.293528][ T12] __device_attach+0x217/0x360 [ 24.298285][ T12] ? device_bind_driver+0xd0/0xd0 [ 24.303532][ T12] ? kobject_uevent_env+0x29e/0x1160 [ 24.308814][ T12] ? kobject_uevent_env+0x2a8/0x1160 [ 24.314291][ T12] bus_probe_device+0x1e4/0x290 [ 24.319133][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 24.325025][ T12] device_add+0xae6/0x16f0 [ 24.329437][ T12] ? uevent_store+0x50/0x50 [ 24.333933][ T12] usb_new_device.cold+0x6a4/0xe79 [ 24.339046][ T12] hub_event+0x1b5c/0x3640 [ 24.343616][ T12] ? hub_port_debounce+0x260/0x260 [ 24.348718][ T12] process_one_work+0x92b/0x1530 [ 24.353683][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 24.359049][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 24.364069]