Warning: Permanently added '10.128.0.24' (ECDSA) to the list of known hosts. 2019/08/30 10:03:30 parsed 1 programs 2019/08/30 10:03:32 executed programs: 0 syzkaller login: [ 26.099054][ T1736] cgroup1: Unknown subsys name 'perf_event' [ 26.101096][ T1738] cgroup1: Unknown subsys name 'perf_event' [ 26.105622][ T1736] cgroup1: Unknown subsys name 'net_cls' [ 26.111840][ T1738] cgroup1: Unknown subsys name 'net_cls' [ 26.120900][ T1739] cgroup1: Unknown subsys name 'perf_event' [ 26.130562][ T1742] cgroup1: Unknown subsys name 'perf_event' [ 26.132208][ T1739] cgroup1: Unknown subsys name 'net_cls' [ 26.143050][ T1743] cgroup1: Unknown subsys name 'perf_event' [ 26.150401][ T1745] cgroup1: Unknown subsys name 'perf_event' [ 26.154967][ T1742] cgroup1: Unknown subsys name 'net_cls' [ 26.162657][ T1743] cgroup1: Unknown subsys name 'net_cls' [ 26.173422][ T1745] cgroup1: Unknown subsys name 'net_cls' [ 28.527142][ T12] usb 5-1: new low-speed USB device number 2 using dummy_hcd [ 28.577095][ T21] usb 1-1: new low-speed USB device number 2 using dummy_hcd [ 28.657129][ T102] usb 6-1: new low-speed USB device number 2 using dummy_hcd [ 28.677106][ T2707] usb 3-1: new low-speed USB device number 2 using dummy_hcd [ 28.697182][ T2733] usb 4-1: new low-speed USB device number 2 using dummy_hcd [ 28.717146][ T101] usb 2-1: new low-speed USB device number 2 using dummy_hcd [ 28.887249][ T12] usb 5-1: config 0 has an invalid interface number: 236 but max is 2 [ 28.895545][ T12] usb 5-1: config 0 has an invalid descriptor of length 99, skipping remainder of the config [ 28.905757][ T12] usb 5-1: config 0 has 1 interface, different from the descriptor's value: 3 [ 28.914654][ T12] usb 5-1: config 0 has no interface number 0 [ 28.920904][ T12] usb 5-1: config 0 interface 236 altsetting 0 endpoint 0x81 is Bulk; changing to Interrupt [ 28.931094][ T12] usb 5-1: New USB device found, idVendor=07c0, idProduct=1501, bcdDevice=74.a0 [ 28.940197][ T12] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 28.949480][ T12] usb 5-1: config 0 descriptor?? [ 28.957390][ T21] usb 1-1: config 0 has an invalid interface number: 236 but max is 2 [ 28.965540][ T21] usb 1-1: config 0 has an invalid descriptor of length 99, skipping remainder of the config [ 28.975725][ T21] usb 1-1: config 0 has 1 interface, different from the descriptor's value: 3 [ 28.984685][ T21] usb 1-1: config 0 has no interface number 0 [ 28.990990][ T21] usb 1-1: config 0 interface 236 altsetting 0 endpoint 0x81 is Bulk; changing to Interrupt [ 28.992946][ T12] iowarrior 5-1:0.236: IOWarrior product=0x1501, serial= interface=236 now attached to iowarrior0 [ 29.001110][ T21] usb 1-1: New USB device found, idVendor=07c0, idProduct=1501, bcdDevice=74.a0 [ 29.001129][ T21] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 29.019663][ T21] usb 1-1: config 0 descriptor?? [ 29.057176][ T102] usb 6-1: config 0 has an invalid interface number: 236 but max is 2 [ 29.065395][ T102] usb 6-1: config 0 has an invalid descriptor of length 99, skipping remainder of the config [ 29.075680][ T102] usb 6-1: config 0 has 1 interface, different from the descriptor's value: 3 [ 29.084536][ T102] usb 6-1: config 0 has no interface number 0 [ 29.087203][ T2707] usb 3-1: config 0 has an invalid interface number: 236 but max is 2 [ 29.091056][ T102] usb 6-1: config 0 interface 236 altsetting 0 endpoint 0x81 is Bulk; changing to Interrupt [ 29.098784][ T2707] usb 3-1: config 0 has an invalid descriptor of length 99, skipping remainder of the config [ 29.098798][ T2707] usb 3-1: config 0 has 1 interface, different from the descriptor's value: 3 [ 29.108918][ T102] usb 6-1: New USB device found, idVendor=07c0, idProduct=1501, bcdDevice=74.a0 [ 29.119015][ T2707] usb 3-1: config 0 has no interface number 0 [ 29.127878][ T102] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 29.139400][ T21] iowarrior 1-1:0.236: IOWarrior product=0x1501, serial= interface=236 now attached to iowarrior1 [ 29.147168][ T101] usb 2-1: config 0 has an invalid interface number: 236 but max is 2 [ 29.160443][ T2707] usb 3-1: config 0 interface 236 altsetting 0 endpoint 0x81 is Bulk; changing to Interrupt [ 29.161517][ T101] usb 2-1: config 0 has an invalid descriptor of length 99, skipping remainder of the config [ 29.161530][ T101] usb 2-1: config 0 has 1 interface, different from the descriptor's value: 3 [ 29.161543][ T101] usb 2-1: config 0 has no interface number 0 [ 29.169780][ T2707] usb 3-1: New USB device found, idVendor=07c0, idProduct=1501, bcdDevice=74.a0 [ 29.187362][ T101] usb 2-1: config 0 interface 236 altsetting 0 endpoint 0x81 is Bulk; changing to Interrupt [ 29.189932][ T2707] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 29.190084][ T2733] usb 4-1: config 0 has an invalid interface number: 236 but max is 2 [ 29.198883][ T101] usb 2-1: New USB device found, idVendor=07c0, idProduct=1501, bcdDevice=74.a0 [ 29.204901][ T2733] usb 4-1: config 0 has an invalid descriptor of length 99, skipping remainder of the config [ 29.213930][ T101] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 29.216340][ T102] usb 6-1: config 0 descriptor?? [ 29.224008][ T2733] usb 4-1: config 0 has 1 interface, different from the descriptor's value: 3 [ 29.224021][ T2733] usb 4-1: config 0 has no interface number 0 [ 29.224083][ T2733] usb 4-1: config 0 interface 236 altsetting 0 endpoint 0x81 is Bulk; changing to Interrupt [ 29.241369][ T101] usb 2-1: config 0 descriptor?? [ 29.249370][ T2733] usb 4-1: New USB device found, idVendor=07c0, idProduct=1501, bcdDevice=74.a0 [ 29.249384][ T2733] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 29.258074][ T2707] usb 3-1: config 0 descriptor?? [ 29.307821][ T102] iowarrior 6-1:0.236: IOWarrior product=0x1501, serial= interface=236 now attached to iowarrior2 [ 29.311859][ T2733] usb 4-1: config 0 descriptor?? [ 29.320406][ T101] iowarrior 2-1:0.236: IOWarrior product=0x1501, serial= interface=236 now attached to iowarrior3 [ 29.368446][ T101] usb 5-1: USB disconnect, device number 2 [ 29.368899][ T21] usb 1-1: USB disconnect, device number 2 [ 29.380814][ T2733] iowarrior 4-1:0.236: IOWarrior product=0x1501, serial= interface=236 now attached to iowarrior4 [ 29.391062][ T101] iowarrior 5-1:0.236: I/O-Warror #0 now disconnected [ 29.398783][ T2707] iowarrior 3-1:0.236: IOWarrior product=0x1501, serial= interface=236 now attached to iowarrior0 [ 29.411749][ T21] iowarrior 1-1:0.236: I/O-Warror #1 now disconnected [ 29.618283][ T2707] usb 3-1: USB disconnect, device number 2 [ 29.620947][ T101] usb 2-1: USB disconnect, device number 2 [ 29.627180][ T2741] usb 4-1: USB disconnect, device number 2 [ 29.636045][ T2733] usb 6-1: USB disconnect, device number 2 [ 29.637935][ T101] iowarrior 2-1:0.236: I/O-Warror #3 now disconnected [ 29.642874][ T2707] iowarrior 3-1:0.236: I/O-Warror #0 now disconnected [ 29.657235][ T2733] iowarrior 6-1:0.236: I/O-Warror #2 now disconnected [ 29.665302][ T2741] iowarrior 4-1:0.236: I/O-Warror #4 now disconnected [ 30.138154][ T101] usb 1-1: new low-speed USB device number 3 using dummy_hcd [ 30.157207][ T102] usb 5-1: new low-speed USB device number 3 using dummy_hcd [ 30.417147][ T12] usb 2-1: new low-speed USB device number 3 using dummy_hcd [ 30.427133][ T2707] usb 4-1: new low-speed USB device number 3 using dummy_hcd [ 30.434616][ T2741] usb 6-1: new low-speed USB device number 3 using dummy_hcd [ 30.442096][ T2733] usb 3-1: new low-speed USB device number 3 using dummy_hcd [ 30.507131][ T101] usb 1-1: config 0 has an invalid interface number: 236 but max is 2 [ 30.515346][ T101] usb 1-1: config 0 has an invalid descriptor of length 99, skipping remainder of the config [ 30.525562][ T101] usb 1-1: config 0 has 1 interface, different from the descriptor's value: 3 [ 30.534426][ T101] usb 1-1: config 0 has no interface number 0 [ 30.540548][ T102] usb 5-1: config 0 has an invalid interface number: 236 but max is 2 [ 30.548722][ T102] usb 5-1: config 0 has an invalid descriptor of length 99, skipping remainder of the config [ 30.558883][ T102] usb 5-1: config 0 has 1 interface, different from the descriptor's value: 3 [ 30.567807][ T102] usb 5-1: config 0 has no interface number 0 [ 30.574069][ T101] usb 1-1: config 0 interface 236 altsetting 0 endpoint 0x81 is Bulk; changing to Interrupt [ 30.584166][ T101] usb 1-1: New USB device found, idVendor=07c0, idProduct=1501, bcdDevice=74.a0 [ 30.593419][ T101] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 30.601500][ T102] usb 5-1: config 0 interface 236 altsetting 0 endpoint 0x81 is Bulk; changing to Interrupt [ 30.611612][ T102] usb 5-1: New USB device found, idVendor=07c0, idProduct=1501, bcdDevice=74.a0 [ 30.620663][ T102] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 30.629460][ T101] usb 1-1: config 0 descriptor?? [ 30.635521][ T102] usb 5-1: config 0 descriptor?? [ 30.669973][ T101] iowarrior 1-1:0.236: IOWarrior product=0x1501, serial= interface=236 now attached to iowarrior0 [ 30.685077][ T102] iowarrior 5-1:0.236: IOWarrior product=0x1501, serial= interface=236 now attached to iowarrior1 [ 30.807236][ T12] usb 2-1: config 0 has an invalid interface number: 236 but max is 2 [ 30.815450][ T12] usb 2-1: config 0 has an invalid descriptor of length 99, skipping remainder of the config [ 30.825644][ T12] usb 2-1: config 0 has 1 interface, different from the descriptor's value: 3 [ 30.834521][ T12] usb 2-1: config 0 has no interface number 0 [ 30.840631][ T12] usb 2-1: config 0 interface 236 altsetting 0 endpoint 0x81 is Bulk; changing to Interrupt [ 30.850735][ T12] usb 2-1: New USB device found, idVendor=07c0, idProduct=1501, bcdDevice=74.a0 [ 30.857249][ T2733] usb 3-1: config 0 has an invalid interface number: 236 but max is 2 [ 30.859795][ T12] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 30.860931][ T12] usb 2-1: config 0 descriptor?? [ 30.867991][ T2733] usb 3-1: config 0 has an invalid descriptor of length 99, skipping remainder of the config [ 30.868007][ T2733] usb 3-1: config 0 has 1 interface, different from the descriptor's value: 3 [ 30.868018][ T2733] usb 3-1: config 0 has no interface number 0 [ 30.868096][ T2707] usb 4-1: config 0 has an invalid interface number: 236 but max is 2 [ 30.914172][ T2707] usb 4-1: config 0 has an invalid descriptor of length 99, skipping remainder of the config [ 30.924356][ T2707] usb 4-1: config 0 has 1 interface, different from the descriptor's value: 3 [ 30.933221][ T2707] usb 4-1: config 0 has no interface number 0 [ 30.939347][ T2741] usb 6-1: config 0 has an invalid interface number: 236 but max is 2 [ 30.947526][ T2741] usb 6-1: config 0 has an invalid descriptor of length 99, skipping remainder of the config [ 30.957705][ T2741] usb 6-1: config 0 has 1 interface, different from the descriptor's value: 3 [ 30.966544][ T2741] usb 6-1: config 0 has no interface number 0 [ 30.972661][ T2733] usb 3-1: config 0 interface 236 altsetting 0 endpoint 0x81 is Bulk; changing to Interrupt [ 30.982774][ T2733] usb 3-1: New USB device found, idVendor=07c0, idProduct=1501, bcdDevice=74.a0 [ 30.988551][ T12] iowarrior 2-1:0.236: IOWarrior product=0x1501, serial= interface=236 now attached to iowarrior2 [ 30.991829][ T2733] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 31.011633][ T2741] usb 6-1: config 0 interface 236 altsetting 0 endpoint 0x81 is Bulk; changing to Interrupt [ 31.014579][ T12] usb 5-1: USB disconnect, device number 3 [ 31.021766][ T2741] usb 6-1: New USB device found, idVendor=07c0, idProduct=1501, bcdDevice=74.a0 [ 31.021780][ T2741] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 31.022719][ T2707] usb 4-1: config 0 interface 236 altsetting 0 endpoint 0x81 is Bulk; changing to Interrupt [ 31.031515][ T12] iowarrior 5-1:0.236: I/O-Warror #1 now disconnected [ 31.036623][ T2707] usb 4-1: New USB device found, idVendor=07c0, idProduct=1501, bcdDevice=74.a0 [ 31.036638][ T2707] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 31.036971][ T2733] usb 3-1: config 0 descriptor?? [ 31.055729][ T102] usb 1-1: USB disconnect, device number 3 [ 31.061931][ T2741] usb 6-1: config 0 descriptor?? [ 31.077708][ T102] iowarrior 1-1:0.236: I/O-Warror #0 now disconnected [ 31.084105][ T2707] usb 4-1: config 0 descriptor?? [ 31.108456][ T101] usb 2-1: USB disconnect, device number 3 [ 31.115544][ T101] iowarrior 2-1:0.236: I/O-Warror #2 now disconnected [ 31.131246][ T2741] iowarrior 6-1:0.236: IOWarrior product=0x1501, serial= interface=236 now attached to iowarrior0 [ 31.143222][ T2733] iowarrior 3-1:0.236: IOWarrior product=0x1501, serial= interface=236 now attached to iowarrior1 [ 31.157504][ T2707] iowarrior 4-1:0.236: IOWarrior product=0x1501, serial= interface=236 now attached to iowarrior2 [ 31.328423][ T2707] usb 6-1: USB disconnect, device number 3 [ 31.354590][ T2771] iowarrior_open - error, can't find device for minor 0 [ 31.362620][ T2707] ================================================================== [ 31.362923][ T101] usb 3-1: USB disconnect, device number 3 [ 31.370759][ T2707] BUG: KASAN: use-after-free in __mutex_lock+0xf23/0x1360 [ 31.370772][ T2707] Read of size 8 at addr ffff8881d215ef58 by task kworker/1:2/2707 [ 31.370775][ T2707] [ 31.370788][ T2707] CPU: 1 PID: 2707 Comm: kworker/1:2 Not tainted 5.3.0-rc5+ #28 [ 31.370794][ T2707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.370806][ T2707] Workqueue: usb_hub_wq hub_event [ 31.370813][ T2707] Call Trace: [ 31.370827][ T2707] dump_stack+0xca/0x13e [ 31.370838][ T2707] ? __mutex_lock+0xf23/0x1360 [ 31.370849][ T2707] ? __mutex_lock+0xf23/0x1360 [ 31.370862][ T2707] print_address_description+0x6a/0x32c [ 31.370873][ T2707] ? __mutex_lock+0xf23/0x1360 [ 31.370883][ T2707] ? __mutex_lock+0xf23/0x1360 [ 31.370894][ T2707] __kasan_report.cold+0x1a/0x33 [ 31.370908][ T2707] ? __mutex_lock+0xf23/0x1360 [ 31.381544][ T101] iowarrior 3-1:0.236: I/O-Warror #1 now disconnected [ 31.383783][ T2707] kasan_report+0xe/0x12 [ 31.383796][ T2707] __mutex_lock+0xf23/0x1360 [ 31.383808][ T2707] ? lock_downgrade+0x6e0/0x6e0 2019/08/30 10:03:37 executed programs: 12 [ 31.383827][ T2707] ? iowarrior_disconnect+0xf0/0x2c0 [ 31.402607][ T102] usb 4-1: USB disconnect, device number 3 [ 31.411651][ T2707] ? mutex_trylock+0x2c0/0x2c0 [ 31.411662][ T2707] ? mutex_trylock+0x2c0/0x2c0 [ 31.411674][ T2707] ? __mutex_unlock_slowpath+0xea/0x670 [ 31.411685][ T2707] ? wait_for_completion+0x3c0/0x3c0 [ 31.411694][ T2707] ? __down_timeout+0x2d0/0x2d0 [ 31.411708][ T2707] ? iowarrior_disconnect+0xf0/0x2c0 [ 31.411723][ T2707] iowarrior_disconnect+0xf0/0x2c0 [ 31.423706][ T102] iowarrior 4-1:0.236: I/O-Warror #2 now disconnected [ 31.424221][ T2707] usb_unbind_interface+0x1bd/0x8a0 [ 31.539021][ T2707] ? usb_autoresume_device+0x60/0x60 [ 31.544291][ T2707] device_release_driver_internal+0x42f/0x500 [ 31.550341][ T2707] bus_remove_device+0x2dc/0x4a0 [ 31.555253][ T2707] device_del+0x420/0xb10 [ 31.559568][ T2707] ? __device_links_no_driver+0x240/0x240 [ 31.565260][ T2707] ? usb_remove_ep_devs+0x3e/0x80 [ 31.570263][ T2707] ? remove_intf_ep_devs+0x13f/0x1d0 [ 31.575522][ T2707] usb_disable_device+0x211/0x690 [ 31.580523][ T2707] usb_disconnect+0x284/0x8d0 [ 31.585172][ T2707] hub_event+0x1454/0x3640 [ 31.589564][ T2707] ? find_held_lock+0x2d/0x110 [ 31.594389][ T2707] ? mark_held_locks+0xe0/0xe0 [ 31.599127][ T2707] ? hub_port_debounce+0x260/0x260 [ 31.604215][ T2707] process_one_work+0x92b/0x1530 [ 31.609142][ T2707] ? pwq_dec_nr_in_flight+0x310/0x310 [ 31.614496][ T2707] ? do_raw_spin_lock+0x11a/0x280 [ 31.619512][ T2707] worker_thread+0x96/0xe20 [ 31.623990][ T2707] ? process_one_work+0x1530/0x1530 [ 31.629162][ T2707] kthread+0x318/0x420 [ 31.633203][ T2707] ? kthread_create_on_node+0xf0/0xf0 [ 31.638560][ T2707] ret_from_fork+0x24/0x30 [ 31.642952][ T2707] [ 31.645259][ T2707] Allocated by task 2741: [ 31.649565][ T2707] save_stack+0x1b/0x80 [ 31.653693][ T2707] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 31.659300][ T2707] iowarrior_probe+0x7a/0x10b2 [ 31.664047][ T2707] usb_probe_interface+0x305/0x7a0 [ 31.669142][ T2707] really_probe+0x281/0x6d0 [ 31.673621][ T2707] driver_probe_device+0x101/0x1b0 [ 31.678705][ T2707] __device_attach_driver+0x1c2/0x220 [ 31.684050][ T2707] bus_for_each_drv+0x162/0x1e0 [ 31.688874][ T2707] __device_attach+0x217/0x360 [ 31.693610][ T2707] bus_probe_device+0x1e4/0x290 [ 31.698434][ T2707] device_add+0xae6/0x16f0 [ 31.702824][ T2707] usb_set_configuration+0xdf6/0x1670 [ 31.708254][ T2707] generic_probe+0x9d/0xd5 [ 31.712640][ T2707] usb_probe_device+0x99/0x100 [ 31.717377][ T2707] really_probe+0x281/0x6d0 [ 31.722030][ T2707] driver_probe_device+0x101/0x1b0 [ 31.727123][ T2707] __device_attach_driver+0x1c2/0x220 [ 31.732474][ T2707] bus_for_each_drv+0x162/0x1e0 [ 31.737297][ T2707] __device_attach+0x217/0x360 [ 31.742033][ T2707] bus_probe_device+0x1e4/0x290 [ 31.746855][ T2707] device_add+0xae6/0x16f0 [ 31.751244][ T2707] usb_new_device.cold+0x6a4/0xe79 [ 31.756328][ T2707] hub_event+0x1b5c/0x3640 [ 31.760718][ T2707] process_one_work+0x92b/0x1530 [ 31.765629][ T2707] worker_thread+0x96/0xe20 [ 31.770135][ T2707] kthread+0x318/0x420 [ 31.774178][ T2707] ret_from_fork+0x24/0x30 [ 31.778562][ T2707] [ 31.780866][ T2707] Freed by task 2769: [ 31.784832][ T2707] save_stack+0x1b/0x80 [ 31.788958][ T2707] __kasan_slab_free+0x130/0x180 [ 31.793868][ T2707] kfree+0xe4/0x2f0 [ 31.797116][ T12] usb 1-1: new low-speed USB device number 4 using dummy_hcd [ 31.797667][ T2707] iowarrior_release+0x187/0x280 [ 31.797678][ T2707] __fput+0x2d7/0x840 [ 31.797689][ T2707] task_work_run+0x13f/0x1c0 [ 31.797700][ T2707] exit_to_usermode_loop+0x1d2/0x200 [ 31.797707][ T2707] do_syscall_64+0x45f/0x580 [ 31.797723][ T2707] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 31.834180][ T2707] [ 31.836486][ T2707] The buggy address belongs to the object at ffff8881d215ef00 [ 31.836486][ T2707] which belongs to the cache kmalloc-512 of size 512 [ 31.850516][ T2707] The buggy address is located 88 bytes inside of [ 31.850516][ T2707] 512-byte region [ffff8881d215ef00, ffff8881d215f100) [ 31.863673][ T2707] The buggy address belongs to the page: [ 31.869297][ T2707] page:ffffea0007485780 refcount:1 mapcount:0 mapping:ffff8881da002500 index:0x0 compound_mapcount: 0 [ 31.880225][ T2707] flags: 0x200000000010200(slab|head) [ 31.885595][ T2707] raw: 0200000000010200 ffffea0007488980 0000000500000005 ffff8881da002500 [ 31.894166][ T2707] raw: 0000000000000000 00000000000c000c 00000001ffffffff 0000000000000000 [ 31.902724][ T2707] page dumped because: kasan: bad access detected [ 31.909117][ T2707] [ 31.911418][ T2707] Memory state around the buggy address: [ 31.917023][ T2707] ffff8881d215ee00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.925066][ T2707] ffff8881d215ee80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.933108][ T2707] >ffff8881d215ef00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.941138][ T2707] ^ [ 31.948048][ T2707] ffff8881d215ef80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.956082][ T2707] ffff8881d215f000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.964116][ T2707] ================================================================== [ 31.972148][ T2707] Disabling lock debugging due to kernel taint [ 31.978380][ T2707] Kernel panic - not syncing: panic_on_warn set ... [ 31.984970][ T2707] CPU: 1 PID: 2707 Comm: kworker/1:2 Tainted: G B 5.3.0-rc5+ #28 [ 31.993974][ T2707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.004027][ T2707] Workqueue: usb_hub_wq hub_event [ 32.009041][ T2707] Call Trace: [ 32.012323][ T2707] dump_stack+0xca/0x13e [ 32.016560][ T2707] panic+0x2a3/0x6da [ 32.020451][ T2707] ? add_taint.cold+0x16/0x16 [ 32.025123][ T2707] ? retint_kernel+0x10/0x10 [ 32.029711][ T2707] ? trace_hardirqs_on+0x55/0x1e0 [ 32.034730][ T2707] ? __mutex_lock+0xf23/0x1360 [ 32.039490][ T2707] end_report+0x43/0x49 [ 32.043632][ T2707] ? __mutex_lock+0xf23/0x1360 [ 32.048381][ T2707] __kasan_report.cold+0xd/0x33 [ 32.053210][ T2707] ? __mutex_lock+0xf23/0x1360 [ 32.058048][ T2707] kasan_report+0xe/0x12 [ 32.062276][ T2707] __mutex_lock+0xf23/0x1360 [ 32.066840][ T2707] ? lock_downgrade+0x6e0/0x6e0 [ 32.071664][ T2707] ? iowarrior_disconnect+0xf0/0x2c0 [ 32.076919][ T2707] ? mutex_trylock+0x2c0/0x2c0 [ 32.081677][ T2707] ? mutex_trylock+0x2c0/0x2c0 [ 32.086417][ T2707] ? __mutex_unlock_slowpath+0xea/0x670 [ 32.091931][ T2707] ? wait_for_completion+0x3c0/0x3c0 [ 32.097204][ T2707] ? __down_timeout+0x2d0/0x2d0 [ 32.102040][ T2707] ? iowarrior_disconnect+0xf0/0x2c0 [ 32.107307][ T2707] iowarrior_disconnect+0xf0/0x2c0 [ 32.112390][ T2707] usb_unbind_interface+0x1bd/0x8a0 [ 32.117561][ T2707] ? usb_autoresume_device+0x60/0x60 [ 32.122824][ T2707] device_release_driver_internal+0x42f/0x500 [ 32.128873][ T2707] bus_remove_device+0x2dc/0x4a0 [ 32.133793][ T2707] device_del+0x420/0xb10 [ 32.138114][ T2707] ? __device_links_no_driver+0x240/0x240 [ 32.143805][ T2707] ? usb_remove_ep_devs+0x3e/0x80 [ 32.147237][ T102] usb 3-1: new low-speed USB device number 4 using dummy_hcd [ 32.148805][ T2707] ? remove_intf_ep_devs+0x13f/0x1d0 [ 32.148817][ T2707] usb_disable_device+0x211/0x690 [ 32.148826][ T2707] usb_disconnect+0x284/0x8d0 [ 32.148839][ T2707] hub_event+0x1454/0x3640 [ 32.175472][ T2707] ? find_held_lock+0x2d/0x110 [ 32.180215][ T2707] ? mark_held_locks+0xe0/0xe0 [ 32.184951][ T2707] ? hub_port_debounce+0x260/0x260 [ 32.190037][ T2707] process_one_work+0x92b/0x1530 [ 32.194947][ T2707] ? pwq_dec_nr_in_flight+0x310/0x310 [ 32.200288][ T2707] ? do_raw_spin_lock+0x11a/0x280 [ 32.205284][ T2707] worker_thread+0x96/0xe20 [ 32.209766][ T2707] ? process_one_work+0x1530/0x1530 [ 32.214935][ T2707] kthread+0x318/0x420 [ 32.217126][ T12] usb 1-1: config 0 has an invalid interface number: 236 but max is 2 [ 32.218980][ T2707] ? kthread_create_on_node+0xf0/0xf0 [ 32.218994][ T2707] ret_from_fork+0x24/0x30 [ 32.227153][ T12] usb 1-1: config 0 has an invalid descriptor of length 99, skipping remainder of the config [ 32.243630][ T2707] Kernel Offset: disabled [ 32.258044][ T2707] Rebooting in 86400 seconds..