Warning: Permanently added '10.128.10.31' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.322379][ T17] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 35.562333][ T17] usb 1-1: Using ep0 maxpacket: 8 [ 35.682440][ T17] usb 1-1: config 0 has an invalid interface number: 133 but max is 0 [ 35.690845][ T17] usb 1-1: config 0 has no interface number 0 [ 35.697003][ T17] usb 1-1: New USB device found, idVendor=0424, idProduct=c001, bcdDevice=e3.10 [ 35.706112][ T17] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 35.715950][ T17] usb 1-1: config 0 descriptor?? executing program [ 35.973060][ T17] usb 1-1: string descriptor 0 read error: -71 [ 35.982772][ T17] usb 1-1: claimed gadget: Vendor=0424 ProdID=c001 Bus=01 Device=02 [ 35.990895][ T17] usb 1-1: device path: /sys/bus/usb/devices/1-1:0.133 [ 35.999459][ T17] most_core: registered new device mdev0 (usb_device 1-1:0.133) [ 36.008735][ T17] usb 1-1: USB disconnect, device number 2 [ 36.015706][ T17] kasan: CONFIG_KASAN_INLINE enabled [ 36.021134][ T17] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 36.029258][ T17] general protection fault: 0000 [#1] SMP KASAN PTI [ 36.035927][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.1.0-rc3+ #8 [ 36.043429][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.053736][ T17] Workqueue: usb_hub_wq hub_event [ 36.064080][ T17] RIP: 0010:device_del+0x76/0xb90 [ 36.069084][ T17] Code: f1 f1 f1 f1 c7 40 04 00 07 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 84 24 88 00 00 00 31 c0 e8 c1 ce d7 fe 48 89 d8 48 c1 e8 03 <80> 3c 28 00 0f 85 82 0a 00 00 48 8b 03 4c 8d 63 60 31 f6 4c 8d 7b [ 36.088855][ T17] RSP: 0018:ffff8881d9e4f7c0 EFLAGS: 00010246 [ 36.094996][ T17] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 36.102956][ T17] RDX: 0000000000000000 RSI: ffffffff8264999f RDI: 0000000000000000 [ 36.110983][ T17] RBP: dffffc0000000000 R08: ffff8881d9e33000 R09: ffffed1039951b26 [ 36.118950][ T17] R10: ffffed1039951b25 R11: ffff8881cca8d92f R12: ffff8881cde8f828 [ 36.127084][ T17] R13: ffff8881cca8d860 R14: ffff8881cde8f730 R15: 0000000000000000 [ 36.135214][ T17] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 36.144295][ T17] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.151372][ T17] CR2: 00007f77df136000 CR3: 00000001cf00a000 CR4: 00000000001406e0 [ 36.159350][ T17] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.167351][ T17] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.175314][ T17] Call Trace: [ 36.178591][ T17] ? try_to_del_timer_sync+0xbf/0x110 [ 36.184240][ T17] ? __device_links_no_driver+0x240/0x240 [ 36.190486][ T17] ? mark_held_locks+0x9f/0xe0 [ 36.195245][ T17] ? del_timer_sync+0x121/0x130 [ 36.200369][ T17] device_unregister+0x11/0x30 [ 36.205233][ T17] hdm_disconnect+0xdf/0x200 [ 36.210076][ T17] usb_unbind_interface+0x1c4/0x8b0 [ 36.215266][ T17] ? usb_autoresume_device+0x60/0x60 [ 36.220718][ T17] device_release_driver_internal+0x431/0x4f0 [ 36.226876][ T17] bus_remove_device+0x2ee/0x4c0 [ 36.231806][ T17] device_del+0x462/0xb90 [ 36.236134][ T17] ? __device_links_no_driver+0x240/0x240 [ 36.241935][ T17] ? lockdep_hardirqs_on+0x379/0x580 [ 36.247275][ T17] ? remove_intf_ep_devs+0x13f/0x1d0 [ 36.252564][ T17] usb_disable_device+0x211/0x690 [ 36.257711][ T17] usb_disconnect+0x284/0x840 [ 36.262648][ T17] hub_event+0x13f8/0x35a0 [ 36.267149][ T17] ? mark_held_locks+0xe0/0xe0 [ 36.271902][ T17] ? hub_port_debounce+0x260/0x260 [ 36.277965][ T17] process_one_work+0x90a/0x1580 [ 36.282888][ T17] ? wq_pool_ids_show+0x300/0x300 [ 36.287918][ T17] ? do_raw_spin_lock+0x11a/0x280 [ 36.293346][ T17] worker_thread+0x7ab/0xe20 [ 36.297991][ T17] ? process_one_work+0x1580/0x1580 [ 36.303190][ T17] kthread+0x30e/0x420 [ 36.307253][ T17] ? kthread_park+0x1a0/0x1a0 [ 36.311979][ T17] ret_from_fork+0x3a/0x50 [ 36.317167][ T17] Modules linked in: [ 36.321180][ T17] ---[ end trace d819a3b977ff54ad ]--- [ 36.326853][ T17] RIP: 0010:device_del+0x76/0xb90 [ 36.331887][ T17] Code: f1 f1 f1 f1 c7 40 04 00 07 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 84 24 88 00 00 00 31 c0 e8 c1 ce d7 fe 48 89 d8 48 c1 e8 03 <80> 3c 28 00 0f 85 82 0a 00 00 48 8b 03 4c 8d 63 60 31 f6 4c 8d 7b [ 36.352013][ T17] RSP: 0018:ffff8881d9e4f7c0 EFLAGS: 00010246 [ 36.358116][ T17] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 36.367336][ T17] RDX: 0000000000000000 RSI: ffffffff8264999f RDI: 0000000000000000 [ 36.375639][ T17] RBP: dffffc0000000000 R08: ffff8881d9e33000 R09: ffffed1039951b26 [ 36.383819][ T17] R10: ffffed1039951b25 R11: ffff8881cca8d92f R12: ffff8881cde8f828 [ 36.391961][ T17] R13: ffff8881cca8d860 R14: ffff8881cde8f730 R15: 0000000000000000 [ 36.400101][ T17] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 36.409048][ T17] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.415646][ T17] CR2: 00007f77df136000 CR3: 00000001cf00a000 CR4: 00000000001406e0 [ 36.423787][ T17] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.431758][ T17] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.440026][ T17] Kernel panic - not syncing: Fatal exception [ 36.446722][ T17] Kernel Offset: disabled [ 36.451115][ T17] Rebooting in 86400 seconds..