Warning: Permanently added '10.128.10.15' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.472579][ T21] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 37.712577][ T21] usb 1-1: Using ep0 maxpacket: 16 [ 37.832607][ T21] usb 1-1: config 0 has an invalid interface number: 160 but max is 0 [ 37.840942][ T21] usb 1-1: config 0 has no interface number 0 [ 37.847127][ T21] usb 1-1: config 0 interface 160 altsetting 64 bulk endpoint 0x9 has invalid maxpacket 0 [ 37.857056][ T21] usb 1-1: config 0 interface 160 altsetting 64 bulk endpoint 0x8F has invalid maxpacket 0 [ 37.867059][ T21] usb 1-1: config 0 interface 160 has no altsetting 0 [ 37.874010][ T21] usb 1-1: New USB device found, idVendor=10cf, idProduct=5501, bcdDevice=eb.5b [ 37.883173][ T21] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.892592][ T21] usb 1-1: config 0 descriptor?? [ 37.935558][ T21] kasan: CONFIG_KASAN_INLINE enabled [ 37.940937][ T21] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 37.949060][ T21] general protection fault: 0000 [#1] SMP KASAN [ 37.955297][ T21] CPU: 1 PID: 21 Comm: kworker/1:1 Not tainted 5.2.0-rc6+ #13 [ 37.962726][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.973034][ T21] Workqueue: usb_hub_wq hub_event [ 37.978139][ T21] RIP: 0010:vmk80xx_write_packet+0x75/0x260 [ 37.984006][ 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 [ 38.004278][ T21] RSP: 0018:ffff8881d9eff1b0 EFLAGS: 00010202 [ 38.010335][ T21] RAX: dffffc0000000000 RBX: ffff8881d4f596c0 RCX: 0000000000000000 [ 38.018286][ T21] RDX: 0000000000000002 RSI: ffffffff847cda93 RDI: ffff8881d4f59728 [ 38.026401][ T21] RBP: ffff8881cfc79900 R08: ffff8881d9e36000 R09: 0000000000000010 [ 38.034476][ T21] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881c5d84c80 [ 38.042429][ T21] R13: 0000000000000010 R14: 0000000000000000 R15: ffff8881d2690128 [ 38.050378][ T21] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 38.059282][ T21] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.065846][ T21] CR2: 00007f9c904c4000 CR3: 00000001d2b52000 CR4: 00000000001406e0 [ 38.073803][ T21] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.081829][ T21] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.089780][ T21] Call Trace: [ 38.093116][ T21] vmk80xx_auto_attach+0x13b1/0x17c0 [ 38.098386][ T21] comedi_auto_config+0x16e/0x250 [ 38.103441][ T21] usb_probe_interface+0x305/0x7a0 [ 38.108535][ T21] ? usb_probe_device+0x100/0x100 [ 38.113543][ T21] really_probe+0x281/0x660 [ 38.118021][ T21] driver_probe_device+0x104/0x210 [ 38.123159][ T21] __device_attach_driver+0x1c2/0x220 [ 38.128514][ T21] ? driver_allows_async_probing+0x160/0x160 [ 38.134576][ T21] bus_for_each_drv+0x15c/0x1e0 [ 38.139406][ T21] ? bus_rescan_devices+0x20/0x20 [ 38.144404][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.150182][ T21] ? lockdep_hardirqs_on+0x379/0x580 [ 38.155695][ T21] __device_attach+0x217/0x360 [ 38.160447][ T21] ? device_bind_driver+0xd0/0xd0 [ 38.165497][ T21] ? kobject_uevent_env+0x29e/0x1150 [ 38.170761][ T21] ? kobject_uevent_env+0x2a8/0x1150 [ 38.176037][ T21] bus_probe_device+0x1e4/0x290 [ 38.180889][ T21] ? blocking_notifier_call_chain+0x54/0xa0 [ 38.186818][ T21] device_add+0xae6/0x16f0 [ 38.191224][ T21] ? uevent_store+0x50/0x50 [ 38.195811][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.201593][ T21] usb_set_configuration+0xdf6/0x1670 [ 38.207030][ T21] generic_probe+0x9d/0xd5 [ 38.211422][ T21] usb_probe_device+0x99/0x100 [ 38.216172][ T21] ? usb_suspend+0x620/0x620 [ 38.220736][ T21] really_probe+0x281/0x660 [ 38.225214][ T21] driver_probe_device+0x104/0x210 [ 38.230310][ T21] __device_attach_driver+0x1c2/0x220 [ 38.235673][ T21] ? driver_allows_async_probing+0x160/0x160 [ 38.241759][ T21] bus_for_each_drv+0x15c/0x1e0 [ 38.246592][ T21] ? bus_rescan_devices+0x20/0x20 [ 38.251597][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.257382][ T21] ? lockdep_hardirqs_on+0x379/0x580 [ 38.262647][ T21] __device_attach+0x217/0x360 [ 38.267494][ T21] ? device_bind_driver+0xd0/0xd0 [ 38.272601][ T21] ? kobject_uevent_env+0x29e/0x1150 [ 38.277863][ T21] ? kobject_uevent_env+0x2a8/0x1150 [ 38.283309][ T21] bus_probe_device+0x1e4/0x290 [ 38.288137][ T21] ? blocking_notifier_call_chain+0x54/0xa0 [ 38.294006][ T21] device_add+0xae6/0x16f0 [ 38.298399][ T21] ? uevent_store+0x50/0x50 [ 38.302892][ T21] usb_new_device.cold+0x8c1/0x1016 [ 38.308075][ T21] ? usb_port_suspend+0xa40/0xa40 [ 38.313081][ T21] ? mark_held_locks+0x9f/0xe0 [ 38.317907][ T21] ? _raw_spin_unlock_irq+0x24/0x30 [ 38.323134][ T21] hub_event+0x1ada/0x3590 [ 38.327580][ T21] ? hub_port_debounce+0x260/0x260 [ 38.332722][ T21] process_one_work+0x905/0x1570 [ 38.337644][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 38.342992][ T21] ? do_raw_spin_lock+0x11a/0x280 [ 38.347998][ T21] worker_thread+0x96/0xe20 [ 38.352486][ T21] ? process_one_work+0x1570/0x1570 [ 38.357662][ T21] kthread+0x30b/0x410 [ 38.361717][ T21] ? kthread_park+0x1a0/0x1a0 [ 38.366375][ T21] ret_from_fork+0x24/0x30 [ 38.370899][ T21] Modules linked in: [ 38.374897][ T21] ---[ end trace 8425c817ce1da187 ]--- [ 38.376145][ T1749] usb-fuzzer-gadget dummy_udc.0: unregistering UDC driver [USB f