Warning: Permanently added '10.128.10.62' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 48.210258] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 48.450219] usb 1-1: Using ep0 maxpacket: 32 [ 48.570339] usb 1-1: config 0 has an invalid interface number: 246 but max is 0 [ 48.577880] usb 1-1: config 0 has no interface number 0 [ 48.583472] usb 1-1: New USB device found, idVendor=06f8, idProduct=300c, bcdDevice=68.91 [ 48.591840] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 48.600700] usb 1-1: config 0 descriptor?? [ 48.642215] WARNING: CPU: 0 PID: 12 at kernel/workqueue.c:3030 __flush_work+0x728/0x820 [ 48.650466] Kernel panic - not syncing: panic_on_warn set ... [ 48.656343] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.1.0-rc4-319354-g9a33b36 #3 [ 48.664286] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.673622] Workqueue: usb_hub_wq hub_event [ 48.677920] Call Trace: [ 48.680492] dump_stack+0xe8/0x16e [ 48.684013] ? __flush_work+0x6d0/0x820 [ 48.687965] panic+0x29d/0x5f2 [ 48.691138] ? __warn_printk+0xf8/0xf8 [ 48.695007] ? __flush_work+0x728/0x820 [ 48.698959] ? __probe_kernel_read+0x171/0x1b0 [ 48.703518] ? __warn.cold+0x5/0x48 [ 48.707124] ? __warn+0xe9/0x1d0 [ 48.710469] ? __flush_work+0x728/0x820 [ 48.714423] __warn.cold+0x20/0x48 [ 48.717940] ? ftrace_graph_ret_addr+0x104/0x170 [ 48.722685] ? __flush_work+0x728/0x820 [ 48.726636] report_bug+0x262/0x2a0 [ 48.730266] do_error_trap+0x130/0x1f0 [ 48.734137] ? __flush_work+0x728/0x820 [ 48.738098] do_invalid_op+0x37/0x40 [ 48.741795] ? __flush_work+0x728/0x820 [ 48.745753] invalid_op+0x14/0x20 [ 48.749245] RIP: 0010:__flush_work+0x728/0x820 [ 48.753815] Code: ff e8 3c 37 27 00 0f 0b 45 31 e4 e9 7e fd ff ff e8 2d 37 27 00 4c 89 ef 45 31 e4 e8 f2 a6 bb 0c e9 69 fd ff ff e8 18 37 27 00 <0f> 0b 45 31 e4 e9 5a fd ff ff e8 b9 47 5e 00 e9 78 fc ff ff e8 cf [ 48.772698] RSP: 0018:ffff8880a84b6e48 EFLAGS: 00010293 [ 48.778041] RAX: ffff8880a84a3100 RBX: ffff888091a6fcb0 RCX: dffffc0000000000 [ 48.785377] RDX: 0000000000000000 RSI: ffffffff814a8e58 RDI: 0000000000000001 [ 48.792635] RBP: ffff8880a84b6fb0 R08: ffff8880a84a3100 R09: 0000000000000000 [ 48.799893] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 48.807139] R13: 0000000000000001 R14: 0000000000000200 R15: ffff888091a6fcc8 [ 48.814400] ? __flush_work+0x728/0x820 [ 48.818356] ? __flush_work+0x728/0x820 [ 48.822312] ? insert_work+0x390/0x390 [ 48.826180] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 48.831260] ? number+0x82a/0xb00 [ 48.834772] ? __sanitizer_cov_trace_switch+0x50/0x90 [ 48.839946] ? put_dec+0xd0/0xd0 [ 48.843291] ? format_decode+0x26c/0xb40 [ 48.847332] ? mark_held_locks+0x9f/0xe0 [ 48.851376] __cancel_work_timer+0x326/0x450 [ 48.855766] ? cancel_delayed_work+0x220/0x220 [ 48.860334] ? _cond_resched+0x15/0x30 [ 48.864203] ? usb_kill_urb+0x19d/0x2c0 [ 48.868164] uvc_ctrl_cleanup_device+0x27/0x488 [ 48.872824] ? rcu_read_lock_sched_held+0x10f/0x130 [ 48.877818] ? uvc_delete+0x26/0x2f0 [ 48.881601] ? kfree+0x21d/0x290 [ 48.884961] uvc_delete+0x2e/0x2f0 [ 48.888485] uvc_probe+0xfa5/0x6588 [ 48.892099] ? __pm_runtime_set_status+0x703/0xa10 [ 48.897014] ? usb_probe_interface+0x5fe/0x820 [ 48.901581] ? mark_held_locks+0x9f/0xe0 [ 48.905623] ? usb_probe_interface+0x31d/0x820 [ 48.910191] usb_probe_interface+0x31d/0x820 [ 48.914581] ? usb_probe_device+0x150/0x150 [ 48.918938] really_probe+0x2da/0xb10 [ 48.922727] driver_probe_device+0x21d/0x350 [ 48.927118] __device_attach_driver+0x1d8/0x290 [ 48.931770] ? driver_allows_async_probing+0x160/0x160 [ 48.937024] bus_for_each_drv+0x163/0x1e0 [ 48.941151] ? bus_rescan_devices+0x30/0x30 [ 48.945454] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 48.950534] ? lockdep_hardirqs_on+0x37e/0x580 [ 48.955096] __device_attach+0x223/0x3a0 [ 48.959138] ? device_bind_driver+0xe0/0xe0 [ 48.963454] ? kobject_uevent_env+0x295/0x13d0 [ 48.968024] bus_probe_device+0x1f1/0x2a0 [ 48.972155] ? blocking_notifier_call_chain+0x59/0xb0 [ 48.977327] device_add+0xad2/0x16e0 [ 48.981024] ? get_device_parent.isra.0+0x560/0x560 [ 48.986034] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 48.991217] usb_set_configuration+0xdf7/0x1740 [ 48.995874] generic_probe+0xa2/0xda [ 48.999571] usb_probe_device+0xc0/0x150 [ 49.003612] ? usb_suspend+0x5f0/0x5f0 [ 49.007488] really_probe+0x2da/0xb10 [ 49.011270] driver_probe_device+0x21d/0x350 [ 49.015678] __device_attach_driver+0x1d8/0x290 [ 49.020333] ? driver_allows_async_probing+0x160/0x160 [ 49.025585] bus_for_each_drv+0x163/0x1e0 [ 49.029712] ? bus_rescan_devices+0x30/0x30 [ 49.034012] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 49.039098] ? lockdep_hardirqs_on+0x37e/0x580 [ 49.043664] __device_attach+0x223/0x3a0 [ 49.047703] ? device_bind_driver+0xe0/0xe0 [ 49.052013] ? kobject_uevent_env+0x295/0x13d0 [ 49.056580] bus_probe_device+0x1f1/0x2a0 [ 49.060707] ? blocking_notifier_call_chain+0x59/0xb0 [ 49.065877] device_add+0xad2/0x16e0 [ 49.069569] ? get_device_parent.isra.0+0x560/0x560 [ 49.074566] usb_new_device.cold+0x537/0xccf [ 49.078957] hub_event+0x138e/0x3b00 [ 49.082683] ? hub_port_debounce+0x350/0x350 [ 49.087074] ? _raw_spin_unlock_irq+0x29/0x40 [ 49.091563] process_one_work+0x90f/0x1580 [ 49.095782] ? wq_pool_ids_show+0x300/0x300 [ 49.100080] ? do_raw_spin_lock+0x11f/0x290 [ 49.104382] worker_thread+0x9b/0xe20 [ 49.108164] ? process_one_work+0x1580/0x1580 [ 49.112643] kthread+0x313/0x420 [ 49.115986] ? kthread_park+0x1a0/0x1a0 [ 49.119940] ret_from_fork+0x3a/0x50 [ 49.124639] Kernel Offset: disabled [ 49.128317] Rebooting in 86400 seconds..