Warning: Permanently added '10.128.0.244' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.925828][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 43.166562][ T12] usb 1-1: Using ep0 maxpacket: 32 [ 43.325946][ T12] usb 1-1: unable to get BOS descriptor or descriptor too short [ 43.406060][ T12] usb 1-1: config 4 has an invalid interface number: 125 but max is 0 [ 43.414910][ T12] usb 1-1: config 4 has no interface number 0 [ 43.421212][ T12] usb 1-1: config 4 interface 125 altsetting 5 has an invalid endpoint with address 0x1A, skipping [ 43.431974][ T12] usb 1-1: config 4 interface 125 altsetting 5 has a duplicate endpoint with address 0xD, skipping [ 43.443134][ T12] usb 1-1: config 4 interface 125 altsetting 5 has a duplicate endpoint with address 0xD, skipping [ 43.453895][ T12] usb 1-1: config 4 interface 125 altsetting 5 endpoint 0x2 has an invalid bInterval 61, changing to 7 [ 43.465205][ T12] usb 1-1: config 4 interface 125 has no altsetting 0 [ 43.705923][ T12] usb 1-1: string descriptor 0 read error: -22 [ 43.712326][ T12] usb 1-1: New USB device found, idVendor=0424, idProduct=c001, bcdDevice=30.3b [ 43.721554][ T12] usb 1-1: New USB device strings: Mfr=1, Product=255, SerialNumber=8 [ 43.768399][ T12] usb 1-1: claimed gadget: Vendor=0424 ProdID=c001 Bus=01 Device=02 [ 43.776552][ T12] usb 1-1: device path: /sys/bus/usb/devices/1-1:4.125 [ 43.787182][ T12] most_core: registered new device mdev0 (1-1:4.125) [ 43.968196][ T12] usb 1-1: USB disconnect, device number 2 [ 43.976394][ T12] kasan: CONFIG_KASAN_INLINE enabled [ 43.981766][ T12] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 43.990194][ T12] general protection fault: 0000 [#1] SMP KASAN [ 43.996992][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.2.0-rc6+ #14 [ 44.004550][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.014751][ T12] Workqueue: usb_hub_wq hub_event [ 44.019837][ T12] RIP: 0010:device_del+0x7a/0xb80 [ 44.024916][ T12] Code: c7 40 04 00 07 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 84 24 80 00 00 00 31 c0 e8 d1 9d d5 fe 48 8d 7b 40 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 79 0a 00 00 48 8b 43 40 4c 8d a3 80 00 00 00 31 [ 44.044519][ T12] RSP: 0018:ffff8881d9e0f7d0 EFLAGS: 00010202 [ 44.050635][ T12] RAX: 0000000000000008 RBX: 0000000000000000 RCX: 0000000000000000 [ 44.058736][ T12] RDX: 0000000000000000 RSI: ffffffff82673ddf RDI: 0000000000000040 [ 44.066812][ T12] RBP: dffffc0000000000 R08: ffff8881d9df9800 R09: ffffed1039fee706 [ 44.074827][ T12] R10: ffffed1039fee705 R11: ffff8881cff7382f R12: ffff8881cfef1a28 [ 44.083004][ T12] R13: ffff8881cff73760 R14: ffff8881cfef19b0 R15: 0000000000000000 [ 44.091024][ T12] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 44.100010][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.106589][ T12] CR2: 00000000006cc0a0 CR3: 0000000006e21000 CR4: 00000000001406f0 [ 44.114551][ T12] Call Trace: [ 44.117892][ T12] ? try_to_del_timer_sync+0xbf/0x110 [ 44.123311][ T12] ? __device_links_no_driver+0x240/0x240 [ 44.129090][ T12] ? mark_held_locks+0x9f/0xe0 [ 44.133843][ T12] ? del_timer_sync+0x121/0x130 [ 44.138778][ T12] device_unregister+0x11/0x30 [ 44.143593][ T12] hdm_disconnect+0xdf/0x200 [ 44.148174][ T12] usb_unbind_interface+0x1bd/0x8a0 [ 44.153361][ T12] ? usb_autoresume_device+0x60/0x60 [ 44.158710][ T12] device_release_driver_internal+0x404/0x4c0 [ 44.164819][ T12] bus_remove_device+0x2dc/0x4a0 [ 44.169824][ T12] device_del+0x460/0xb80 [ 44.174147][ T12] ? __device_links_no_driver+0x240/0x240 [ 44.179857][ T12] ? usb_remove_ep_devs+0x3e/0x80 [ 44.184869][ T12] ? remove_intf_ep_devs+0x13f/0x1d0 [ 44.190144][ T12] usb_disable_device+0x211/0x690 [ 44.195157][ T12] usb_disconnect+0x284/0x830 [ 44.199825][ T12] hub_event+0x143d/0x35f0 [ 44.204242][ T12] ? hub_port_debounce+0x260/0x260 [ 44.209335][ T12] process_one_work+0x905/0x1570 [ 44.214273][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 44.219636][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 44.224650][ T12] worker_thread+0x96/0xe20 [ 44.229148][ T12] ? process_one_work+0x1570/0x1570 [ 44.234338][ T12] kthread+0x30b/0x410 [ 44.238394][ T12] ? kthread_park+0x1a0/0x1a0 [ 44.243060][ T12] ret_from_fork+0x24/0x30 [ 44.247593][ T12] Modules linked in: [ 44.251552][ T12] ---[ end trace e4fe4de18bc13a7b ]--- [ 44.257035][ T12] RIP: 0010:device_del+0x7a/0xb80 [ 44.262054][ T12] Code: c7 40 04 00 07 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 84 24 80 00 00 00 31 c0 e8 d1 9d d5 fe 48 8d 7b 40 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 79 0a 00 00 48 8b 43 40 4c 8d a3 80 00 00 00 31 [ 44.281897][ T12] RSP: 0018:ffff8881d9e0f7d0 EFLAGS: 00010202 [ 44.287988][ T12] RAX: 0000000000000008 RBX: 0000000000000000 RCX: 0000000000000000 [ 44.296069][ T12] RDX: 0000000000000000 RSI: ffffffff82673ddf RDI: 0000000000000040 [ 44.304048][ T12] RBP: dffffc0000000000 R08: ffff8881d9df9800 R09: ffffed1039fee706 [ 44.312143][ T12] R10: ffffed1039fee705 R11: ffff8881cff7382f R12: ffff8881cfef1a28 [ 44.320164][ T12] R13: ffff8881cff73760 R14: ffff8881cfef19b0 R15: 0000000000000000 [ 44.328182][ T12] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 44.337301][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.343876][ T12] CR2: 00000000006cc0a0 CR3: 0000000006e21000 CR4: 00000000001406f0 [ 44.351869][ T12] Kernel panic - not syncing: Fatal exception [ 44.358761][ T12] Kernel Offset: disabled [ 44.363185][ T12] Rebooting in 86400 seconds..