[info] Using makefile-style concurrent boot in runlevel 2. [ 15.122370][ C1] random: crng init done [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.176' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 37.125910][ T12] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 37.135871][ T17] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 37.143555][ T22] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 37.146350][ T1728] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 37.151102][ T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 37.158863][ T5] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 37.365851][ T12] usb 6-1: Using ep0 maxpacket: 32 [ 37.405806][ T17] usb 4-1: Using ep0 maxpacket: 32 [ 37.406048][ T1728] usb 3-1: Using ep0 maxpacket: 32 [ 37.416185][ T5] usb 2-1: Using ep0 maxpacket: 32 [ 37.425950][ T22] usb 5-1: Using ep0 maxpacket: 32 [ 37.431228][ T83] usb 1-1: Using ep0 maxpacket: 32 [ 37.516001][ T12] usb 6-1: config 0 has an invalid interface number: 15 but max is 0 [ 37.524404][ T12] usb 6-1: config 0 has no interface number 0 [ 37.525977][ T17] usb 4-1: config 0 has an invalid interface number: 15 but max is 0 [ 37.530909][ T12] usb 6-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 37.538666][ T17] usb 4-1: config 0 has no interface number 0 [ 37.547900][ T12] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.554166][ T22] usb 5-1: config 0 has an invalid interface number: 15 but max is 0 [ 37.563925][ T12] usb 6-1: config 0 descriptor?? [ 37.569917][ T22] usb 5-1: config 0 has no interface number 0 [ 37.572905][ T83] usb 1-1: config 0 has an invalid interface number: 15 but max is 0 [ 37.575404][ T5] usb 2-1: config 0 has an invalid interface number: 15 but max is 0 [ 37.581185][ T83] usb 1-1: config 0 has no interface number 0 [ 37.581480][ T83] usb 1-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 37.589328][ T5] usb 2-1: config 0 has no interface number 0 [ 37.597430][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.603542][ T1728] usb 3-1: config 0 has an invalid interface number: 15 but max is 0 [ 37.612827][ T22] usb 5-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 37.618581][ T1728] usb 3-1: config 0 has no interface number 0 [ 37.619791][ T1728] usb 3-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 37.627240][ T22] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.627819][ T17] usb 4-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 37.635472][ T1728] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.635606][ T5] usb 2-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 37.644571][ T17] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.651493][ T22] usb 5-1: config 0 descriptor?? [ 37.660074][ T5] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.668454][ T17] usb 4-1: config 0 descriptor?? [ 37.699077][ T1728] usb 3-1: config 0 descriptor?? [ 37.705408][ T83] usb 1-1: config 0 descriptor?? [ 37.713819][ T5] usb 2-1: config 0 descriptor?? [ 37.897099][ T12] hso 6-1:0.15: Failed to find BULK IN ep [ 37.976670][ T22] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 37.984213][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.4.0-rc1+ #0 [ 37.991628][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.001679][ T22] Workqueue: usb_hub_wq hub_event [ 38.006688][ T22] Call Trace: [ 38.009985][ T22] dump_stack+0xca/0x13e [ 38.014217][ T22] sysfs_warn_dup.cold+0x1c/0x2d [ 38.019135][ T22] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 38.025182][ T22] sysfs_create_link+0x61/0xc0 [ 38.029930][ T22] device_add+0x788/0x16f0 [ 38.034349][ T22] ? uevent_store+0x50/0x50 [ 38.038844][ T22] ? __init_waitqueue_head+0x31/0x90 [ 38.044107][ T22] tty_register_device_attr+0x341/0x6f0 [ 38.049634][ T22] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 38.055157][ T22] ? mark_held_locks+0x9f/0xe0 [ 38.059899][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.065681][ T22] ? tty_port_register_device_attr+0xb9/0x110 [ 38.071746][ T22] hso_serial_common_create+0x113/0x710 [ 38.077293][ T22] ? kasan_unpoison_shadow+0x30/0x40 [ 38.082583][ T22] hso_probe+0xc93/0x1a46 [ 38.086898][ T22] usb_probe_interface+0x305/0x7a0 [ 38.091987][ T22] ? usb_probe_device+0x100/0x100 [ 38.096990][ T22] really_probe+0x281/0x6d0 [ 38.101483][ T22] driver_probe_device+0x104/0x210 [ 38.106586][ T22] __device_attach_driver+0x1c2/0x220 [ 38.111940][ T22] ? driver_allows_async_probing+0x160/0x160 [ 38.117937][ T22] bus_for_each_drv+0x162/0x1e0 [ 38.122806][ T22] ? bus_rescan_devices+0x20/0x20 [ 38.127817][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.133617][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 38.138881][ T22] __device_attach+0x217/0x360 [ 38.143624][ T22] ? device_bind_driver+0xd0/0xd0 [ 38.148626][ T22] ? kobject_uevent_env+0x29e/0x1150 [ 38.153901][ T22] ? kobject_uevent_env+0x2a8/0x1150 [ 38.159224][ T22] bus_probe_device+0x1e4/0x290 [ 38.164067][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 38.169951][ T22] device_add+0xae6/0x16f0 executing program executing program executing program [ 38.174380][ T22] ? uevent_store+0x50/0x50 [ 38.178886][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.184701][ T22] usb_set_configuration+0xdf6/0x1670 [ 38.190091][ T22] generic_probe+0x9d/0xd5 [ 38.194518][ T22] usb_probe_device+0x99/0x100 [ 38.199286][ T22] ? usb_suspend+0x620/0x620 [ 38.203869][ T22] really_probe+0x281/0x6d0 [ 38.208366][ T22] driver_probe_device+0x104/0x210 [ 38.213634][ T22] __device_attach_driver+0x1c2/0x220 [ 38.219003][ T22] ? driver_allows_async_probing+0x160/0x160 [ 38.224963][ T22] bus_for_each_drv+0x162/0x1e0 [ 38.229794][ T22] ? bus_rescan_devices+0x20/0x20 [ 38.239062][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.244873][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 38.250149][ T22] __device_attach+0x217/0x360 [ 38.254892][ T22] ? device_bind_driver+0xd0/0xd0 [ 38.259897][ T22] ? kobject_uevent_env+0x29e/0x1150 [ 38.265157][ T22] ? kobject_uevent_env+0x2a8/0x1150 [ 38.270427][ T22] bus_probe_device+0x1e4/0x290 [ 38.275271][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 38.281151][ T22] device_add+0xae6/0x16f0 [ 38.285545][ T22] ? uevent_store+0x50/0x50 [ 38.290029][ T22] usb_new_device.cold+0x6a4/0xe79 [ 38.295203][ T22] hub_event+0x1b5c/0x3640 [ 38.299597][ T22] ? hub_port_debounce+0x260/0x260 [ 38.304702][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 38.310236][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 38.315570][ T22] process_one_work+0x92b/0x1530 [ 38.320569][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 38.326034][ T22] worker_thread+0x96/0xe20 [ 38.330522][ T22] ? process_one_work+0x1530/0x1530 [ 38.335708][ T22] kthread+0x318/0x420 [ 38.339909][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 38.345271][ T22] ret_from_fork+0x24/0x30 [ 38.350165][ T17] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 38.354990][ T12] usb 6-1: USB disconnect, device number 2 [ 38.357662][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.4.0-rc1+ #0 [ 38.357674][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.357687][ T17] Workqueue: usb_hub_wq hub_event [ 38.357694][ T17] Call Trace: [ 38.357710][ T17] dump_stack+0xca/0x13e [ 38.357724][ T17] sysfs_warn_dup.cold+0x1c/0x2d [ 38.357736][ T17] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 38.357747][ T17] sysfs_create_link+0x61/0xc0 [ 38.357758][ T17] device_add+0x788/0x16f0 [ 38.357768][ T17] ? uevent_store+0x50/0x50 [ 38.357781][ T17] ? __init_waitqueue_head+0x31/0x90 [ 38.357792][ T17] tty_register_device_attr+0x341/0x6f0 [ 38.357804][ T17] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 38.357817][ T17] ? mark_held_locks+0x9f/0xe0 [ 38.357827][ T17] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.357837][ T17] ? tty_port_register_device_attr+0xb9/0x110 [ 38.357850][ T17] hso_serial_common_create+0x113/0x710 [ 38.357863][ T17] ? kasan_unpoison_shadow+0x30/0x40 [ 38.357872][ T17] hso_probe+0xc93/0x1a46 [ 38.357884][ T17] usb_probe_interface+0x305/0x7a0 [ 38.357896][ T17] ? usb_probe_device+0x100/0x100 [ 38.357906][ T17] really_probe+0x281/0x6d0 [ 38.357918][ T17] driver_probe_device+0x104/0x210 [ 38.357927][ T17] __device_attach_driver+0x1c2/0x220 [ 38.357937][ T17] ? driver_allows_async_probing+0x160/0x160 [ 38.357945][ T17] bus_for_each_drv+0x162/0x1e0 [ 38.357955][ T17] ? bus_rescan_devices+0x20/0x20 [ 38.357962][ T17] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.357972][ T17] ? lockdep_hardirqs_on+0x382/0x580 [ 38.357980][ T17] __device_attach+0x217/0x360 [ 38.357990][ T17] ? device_bind_driver+0xd0/0xd0 [ 38.357998][ T17] ? kobject_uevent_env+0x29e/0x1150 [ 38.358007][ T17] ? kobject_uevent_env+0x2a8/0x1150 [ 38.358018][ T17] bus_probe_device+0x1e4/0x290 [ 38.358032][ T17] ? blocking_notifier_call_chain+0x54/0xa0 [ 38.358041][ T17] device_add+0xae6/0x16f0 [ 38.358050][ T17] ? uevent_store+0x50/0x50 [ 38.358059][ T17] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.358069][ T17] usb_set_configuration+0xdf6/0x1670 [ 38.358085][ T17] generic_probe+0x9d/0xd5 [ 38.364269][ T5] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 38.371248][ T17] usb_probe_device+0x99/0x100 [ 38.371259][ T17] ? usb_suspend+0x620/0x620 [ 38.371270][ T17] really_probe+0x281/0x6d0 [ 38.371281][ T17] driver_probe_device+0x104/0x210 [ 38.371291][ T17] __device_attach_driver+0x1c2/0x220 [ 38.371306][ T17] ? driver_allows_async_probing+0x160/0x160 [ 38.611336][ T17] bus_for_each_drv+0x162/0x1e0 [ 38.616273][ T17] ? bus_rescan_devices+0x20/0x20 [ 38.621296][ T17] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.627089][ T17] ? lockdep_hardirqs_on+0x382/0x580 [ 38.632361][ T17] __device_attach+0x217/0x360 [ 38.637112][ T17] ? device_bind_driver+0xd0/0xd0 [ 38.642134][ T17] ? kobject_uevent_env+0x29e/0x1150 [ 38.647406][ T17] ? kobject_uevent_env+0x2a8/0x1150 [ 38.652676][ T17] bus_probe_device+0x1e4/0x290 [ 38.657514][ T17] ? blocking_notifier_call_chain+0x54/0xa0 [ 38.663393][ T17] device_add+0xae6/0x16f0 [ 38.667797][ T17] ? uevent_store+0x50/0x50 [ 38.672297][ T17] usb_new_device.cold+0x6a4/0xe79 [ 38.677416][ T17] hub_event+0x1b5c/0x3640 [ 38.681820][ T17] ? hub_port_debounce+0x260/0x260 [ 38.686919][ T17] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 38.692448][ T17] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 38.697718][ T17] process_one_work+0x92b/0x1530 [ 38.702642][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 38.708004][ T17] ? do_raw_spin_lock+0x11a/0x280 [ 38.713016][ T17] worker_thread+0x96/0xe20 [ 38.717507][ T17] ? process_one_work+0x1530/0x1530 [ 38.722695][ T17] kthread+0x318/0x420 [ 38.726755][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 38.732126][ T17] ret_from_fork+0x24/0x30 [ 38.736544][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.4.0-rc1+ #0 [ 38.737380][ T83] hso 1-1:0.15: Failed to find BULK IN ep [ 38.743826][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.743842][ T5] Workqueue: usb_hub_wq hub_event [ 38.764567][ T5] Call Trace: [ 38.767841][ T5] dump_stack+0xca/0x13e [ 38.772063][ T5] sysfs_warn_dup.cold+0x1c/0x2d [ 38.776982][ T5] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 38.783025][ T5] sysfs_create_link+0x61/0xc0 [ 38.787770][ T5] device_add+0x788/0x16f0 [ 38.792164][ T5] ? uevent_store+0x50/0x50 [ 38.796647][ T5] ? __init_waitqueue_head+0x31/0x90 [ 38.801915][ T5] tty_register_device_attr+0x341/0x6f0 [ 38.808044][ T5] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 38.813574][ T5] ? mark_held_locks+0x9f/0xe0 [ 38.818314][ T5] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.824101][ T5] ? tty_port_register_device_attr+0xb9/0x110 [ 38.830144][ T5] hso_serial_common_create+0x113/0x710 [ 38.835669][ T5] ? kasan_unpoison_shadow+0x30/0x40 [ 38.840933][ T5] hso_probe+0xc93/0x1a46 [ 38.845241][ T5] usb_probe_interface+0x305/0x7a0 [ 38.850332][ T5] ? usb_probe_device+0x100/0x100 [ 38.855895][ T5] really_probe+0x281/0x6d0 [ 38.860376][ T5] driver_probe_device+0x104/0x210 [ 38.865463][ T5] __device_attach_driver+0x1c2/0x220 [ 38.870816][ T5] ? driver_allows_async_probing+0x160/0x160 [ 38.876772][ T5] bus_for_each_drv+0x162/0x1e0 [ 38.881599][ T5] ? bus_rescan_devices+0x20/0x20 [ 38.886611][ T5] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.892394][ T5] ? lockdep_hardirqs_on+0x382/0x580 [ 38.897669][ T5] __device_attach+0x217/0x360 [ 38.902417][ T5] ? device_bind_driver+0xd0/0xd0 [ 38.907419][ T5] ? kobject_uevent_env+0x29e/0x1150 [ 38.912702][ T5] ? kobject_uevent_env+0x2a8/0x1150 [ 38.917963][ T5] bus_probe_device+0x1e4/0x290 [ 38.922797][ T5] ? blocking_notifier_call_chain+0x54/0xa0 [ 38.928664][ T5] device_add+0xae6/0x16f0 [ 38.933065][ T5] ? uevent_store+0x50/0x50 [ 38.937563][ T5] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.943358][ T5] usb_set_configuration+0xdf6/0x1670 [ 38.949848][ T5] generic_probe+0x9d/0xd5 [ 38.954242][ T5] usb_probe_device+0x99/0x100 [ 38.958983][ T5] ? usb_suspend+0x620/0x620 [ 38.963549][ T5] really_probe+0x281/0x6d0 [ 38.968041][ T5] driver_probe_device+0x104/0x210 [ 38.973154][ T5] __device_attach_driver+0x1c2/0x220 [ 38.978508][ T5] ? driver_allows_async_probing+0x160/0x160 [ 38.984465][ T5] bus_for_each_drv+0x162/0x1e0 [ 38.989292][ T5] ? bus_rescan_devices+0x20/0x20 [ 38.994293][ T5] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 39.000080][ T5] ? lockdep_hardirqs_on+0x382/0x580 [ 39.005348][ T5] __device_attach+0x217/0x360 [ 39.010089][ T5] ? device_bind_driver+0xd0/0xd0 [ 39.015089][ T5] ? kobject_uevent_env+0x29e/0x1150 [ 39.020349][ T5] ? kobject_uevent_env+0x2a8/0x1150 [ 39.025705][ T5] bus_probe_device+0x1e4/0x290 [ 39.030543][ T5] ? blocking_notifier_call_chain+0x54/0xa0 [ 39.036420][ T5] device_add+0xae6/0x16f0 [ 39.040820][ T5] ? uevent_store+0x50/0x50 [ 39.045302][ T5] usb_new_device.cold+0x6a4/0xe79 [ 39.050398][ T5] hub_event+0x1b5c/0x3640 [ 39.054796][ T5] ? hub_port_debounce+0x260/0x260 [ 39.059884][ T5] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 39.065404][ T5] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 39.070664][ T5] process_one_work+0x92b/0x1530 [ 39.075591][ T5] ? pwq_dec_nr_in_flight+0x310/0x310 [ 39.080940][ T5] worker_thread+0x96/0xe20 [ 39.085510][ T5] ? process_one_work+0x1530/0x1530 [ 39.090700][ T5] kthread+0x318/0x420 [ 39.094746][ T5] ? kthread_create_on_node+0xf0/0xf0 [ 39.100095][ T5] ret_from_fork+0x24/0x30 [ 39.106409][ T1728] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 39.108998][ T83] usb 1-1: USB disconnect, device number 2 [ 39.113887][ T1728] CPU: 0 PID: 1728 Comm: kworker/0:2 Not tainted 5.4.0-rc1+ #0 [ 39.113894][ T1728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.113909][ T1728] Workqueue: usb_hub_wq hub_event [ 39.113916][ T1728] Call Trace: [ 39.113935][ T1728] dump_stack+0xca/0x13e [ 39.113947][ T1728] sysfs_warn_dup.cold+0x1c/0x2d [ 39.113958][ T1728] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 39.113966][ T1728] sysfs_create_link+0x61/0xc0 [ 39.113977][ T1728] device_add+0x788/0x16f0 [ 39.113987][ T1728] ? uevent_store+0x50/0x50 [ 39.114001][ T1728] ? __init_waitqueue_head+0x31/0x90 [ 39.114019][ T1728] tty_register_device_attr+0x341/0x6f0 [ 39.125565][ T22] hso 5-1:0.15: Failed to find BULK IN ep [ 39.127371][ T1728] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 39.127386][ T1728] ? mark_held_locks+0x9f/0xe0 [ 39.127399][ T1728] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 39.127410][ T1728] ? tty_port_register_device_attr+0xb9/0x110 [ 39.127423][ T1728] hso_serial_common_create+0x113/0x710 [ 39.127441][ T1728] ? kasan_unpoison_shadow+0x30/0x40 [ 39.127450][ T1728] hso_probe+0xc93/0x1a46 [ 39.127464][ T1728] usb_probe_interface+0x305/0x7a0 [ 39.127474][ T1728] ? usb_probe_device+0x100/0x100 [ 39.127491][ T1728] really_probe+0x281/0x6d0 [ 39.138900][ T22] kasan: CONFIG_KASAN_INLINE enabled [ 39.143763][ T1728] driver_probe_device+0x104/0x210 [ 39.143779][ T1728] __device_attach_driver+0x1c2/0x220 [ 39.147094][ T22] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 39.151340][ T1728] ? driver_allows_async_probing+0x160/0x160 [ 39.156318][ T22] general protection fault: 0000 [#1] SMP KASAN [ 39.162397][ T1728] bus_for_each_drv+0x162/0x1e0 [ 39.167127][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.4.0-rc1+ #0 [ 39.171512][ T1728] ? bus_rescan_devices+0x20/0x20 [ 39.175978][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.181246][ T1728] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 39.186758][ T22] Workqueue: usb_hub_wq hub_event [ 39.192453][ T1728] ? lockdep_hardirqs_on+0x382/0x580 [ 39.197967][ T22] RIP: 0010:cdev_del+0x22/0x90 [ 39.202701][ T1728] __device_attach+0x217/0x360 [ 39.208471][ T22] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 43 2c d4 ff 48 8d 7d 64 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 4f 48 [ 39.214518][ T1728] ? device_bind_driver+0xd0/0xd0 [ 39.220033][ T22] RSP: 0018:ffff8881d968f2c0 EFLAGS: 00010207 [ 39.225300][ T1728] ? kobject_uevent_env+0x29e/0x1150 [ 39.229596][ T22] RAX: dffffc0000000000 RBX: ffff8881d616a600 RCX: ffffffff820ee86e [ 39.229606][ T22] RDX: 000000000000000c RSI: ffffffff8169efed RDI: 0000000000000064 [ 39.234689][ T1728] ? kobject_uevent_env+0x2a8/0x1150 [ 39.239688][ T22] RBP: 0000000000000000 R08: ffff8881da236000 R09: fffffbfff11b25ae [ 39.244162][ T1728] bus_probe_device+0x1e4/0x290 [ 39.249408][ T22] R10: fffffbfff11b25ad R11: ffffffff88d92d6f R12: 0000000000000000 [ 39.255469][ T1728] ? blocking_notifier_call_chain+0x54/0xa0 [ 39.260806][ T22] R13: ffff8881d62faa80 R14: ffff8881d9139980 R15: ffff8881d913ddf0 [ 39.268845][ T1728] device_add+0xae6/0x16f0 [ 39.274799][ T22] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 39.281009][ T1728] ? uevent_store+0x50/0x50 [ 39.285833][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.293180][ T1728] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 39.298172][ T22] CR2: 00007ffe9c810164 CR3: 00000001c72ce000 CR4: 00000000001406e0 [ 39.308222][ T1728] usb_set_configuration+0xdf6/0x1670 [ 39.314019][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.319144][ T1728] generic_probe+0x9d/0xd5 [ 39.324408][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.329155][ T1728] usb_probe_device+0x99/0x100 [ 39.333891][ T22] Call Trace: [ 39.353569][ T1728] ? usb_suspend+0x620/0x620 [ 39.358564][ T22] tty_unregister_device+0x10d/0x1a0 [ 39.364602][ T1728] really_probe+0x281/0x6d0 [ 39.369852][ T22] hso_probe.cold+0xc8/0x122 [ 39.377794][ T1728] driver_probe_device+0x104/0x210 [ 39.385752][ T22] usb_probe_interface+0x305/0x7a0 [ 39.391005][ T1728] __device_attach_driver+0x1c2/0x220 [ 39.399045][ T22] ? usb_probe_device+0x100/0x100 [ 39.403868][ T1728] ? driver_allows_async_probing+0x160/0x160 [ 39.411813][ T22] really_probe+0x281/0x6d0 [ 39.417674][ T1728] bus_for_each_drv+0x162/0x1e0 [ 39.425629][ T22] driver_probe_device+0x104/0x210 [ 39.430015][ T1728] ? bus_rescan_devices+0x20/0x20 [ 39.438914][ T22] __device_attach_driver+0x1c2/0x220 [ 39.443380][ T1728] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 39.443397][ T1728] ? lockdep_hardirqs_on+0x382/0x580 [ 39.449954][ T22] ? driver_allows_async_probing+0x160/0x160 [ 39.456432][ T1728] __device_attach+0x217/0x360 [ 39.464381][ T22] bus_for_each_drv+0x162/0x1e0 [ 39.464395][ T22] ? bus_rescan_devices+0x20/0x20 [ 39.469740][ T1728] ? device_bind_driver+0xd0/0xd0 [ 39.477682][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 39.482069][ T1728] ? kobject_uevent_env+0x29e/0x1150 [ 39.490026][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 39.494755][ T1728] ? kobject_uevent_env+0x2a8/0x1150 [ 39.498014][ T22] __device_attach+0x217/0x360 executing program executing program [ 39.502571][ T1728] bus_probe_device+0x1e4/0x290 [ 39.507824][ T22] ? device_bind_driver+0xd0/0xd0 [ 39.512298][ T1728] ? blocking_notifier_call_chain+0x54/0xa0 [ 39.516854][ T22] ? kobject_uevent_env+0x29e/0x1150 [ 39.521936][ T1728] device_add+0xae6/0x16f0 [ 39.527015][ T22] ? kobject_uevent_env+0x2a8/0x1150 [ 39.532366][ T1728] ? uevent_store+0x50/0x50 [ 39.537371][ T22] bus_probe_device+0x1e4/0x290 [ 39.544981][ T1728] usb_new_device.cold+0x6a4/0xe79 [ 39.549454][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 39.554270][ T1728] hub_event+0x1b5c/0x3640 [ 39.559361][ T22] device_add+0xae6/0x16f0 [ 39.564356][ T1728] ? hub_port_debounce+0x260/0x260 [ 39.569699][ T22] ? uevent_store+0x50/0x50 [ 39.575487][ T1728] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 39.580734][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 39.580748][ T22] usb_set_configuration+0xdf6/0x1670 [ 39.586695][ T1728] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 39.591430][ T22] generic_probe+0x9d/0xd5 [ 39.596257][ T1728] process_one_work+0x92b/0x1530 [ 39.601252][ T22] usb_probe_device+0x99/0x100 [ 39.606246][ T1728] ? pwq_dec_nr_in_flight+0x310/0x310 [ 39.612107][ T22] ? usb_suspend+0x620/0x620 [ 39.617376][ T1728] worker_thread+0x96/0xe20 [ 39.622643][ T22] really_probe+0x281/0x6d0 [ 39.627898][ T1728] ? process_one_work+0x1530/0x1530 [ 39.632633][ T22] driver_probe_device+0x104/0x210 [ 39.637450][ T1728] kthread+0x318/0x420 [ 39.642446][ T22] __device_attach_driver+0x1c2/0x220 [ 39.648308][ T1728] ? kthread_create_on_node+0xf0/0xf0 [ 39.653561][ T22] ? driver_allows_async_probing+0x160/0x160 [ 39.657945][ T1728] ret_from_fork+0x24/0x30 [ 39.663196][ T22] bus_for_each_drv+0x162/0x1e0 [ 39.680827][ T1728] hso 3-1:0.15: Failed to find BULK IN ep [ 39.683476][ T22] ? bus_rescan_devices+0x20/0x20 [ 39.687952][ T1728] kasan: CONFIG_KASAN_INLINE enabled [ 39.693309][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 39.698397][ T1728] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 39.702865][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 39.832831][ T22] __device_attach+0x217/0x360 [ 39.837577][ T22] ? device_bind_driver+0xd0/0xd0 [ 39.842578][ T22] ? kobject_uevent_env+0x29e/0x1150 [ 39.847845][ T22] ? kobject_uevent_env+0x2a8/0x1150 [ 39.853134][ T22] bus_probe_device+0x1e4/0x290 [ 39.857964][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 39.863842][ T22] device_add+0xae6/0x16f0 [ 39.868234][ T22] ? uevent_store+0x50/0x50 [ 39.872714][ T22] usb_new_device.cold+0x6a4/0xe79 [ 39.877801][ T22] hub_event+0x1b5c/0x3640 [ 39.882204][ T22] ? hub_port_debounce+0x260/0x260 [ 39.887295][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 39.892816][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 39.898076][ T22] process_one_work+0x92b/0x1530 [ 39.902988][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 39.908335][ T22] worker_thread+0x96/0xe20 [ 39.912813][ T22] ? process_one_work+0x1530/0x1530 [ 39.917986][ T22] kthread+0x318/0x420 [ 39.922037][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 39.927382][ T22] ret_from_fork+0x24/0x30 [ 39.931800][ T22] Modules linked in: [ 39.935683][ T1728] general protection fault: 0000 [#2] SMP KASAN [ 39.935781][ T22] ---[ end trace 1877fd7dfade942c ]--- [ 39.941915][ T1728] CPU: 0 PID: 1728 Comm: kworker/0:2 Tainted: G D 5.4.0-rc1+ #0 [ 39.947358][ T22] RIP: 0010:cdev_del+0x22/0x90 [ 39.956248][ T1728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.956260][ T1728] Workqueue: usb_hub_wq hub_event [ 39.961015][ T22] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 43 2c d4 ff 48 8d 7d 64 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 4f 48 [ 39.971039][ T1728] RIP: 0010:cdev_del+0x22/0x90 [ 39.971049][ T1728] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 43 2c d4 ff 48 8d 7d 64 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 4f 48 [ 39.971066][ T1728] RSP: 0018:ffff8881c612f2c0 EFLAGS: 00010207 [ 39.976078][ T22] RSP: 0018:ffff8881d968f2c0 EFLAGS: 00010207 [ 39.995647][ T1728] RAX: dffffc0000000000 RBX: ffff8881d616a600 RCX: ffffffff820ee86e [ 39.995653][ T1728] RDX: 000000000000000c RSI: ffffffff8169efed RDI: 0000000000000064 [ 39.995659][ T1728] RBP: 0000000000000000 R08: ffff8881d50ce000 R09: ffffed103b4688b7 [ 39.995670][ T1728] R10: ffffed103b4688b6 R11: ffff8881da3445b3 R12: 0000000000000000 [ 40.000501][ T22] RAX: dffffc0000000000 RBX: ffff8881d616a600 RCX: ffffffff820ee86e [ 40.020671][ T1728] R13: ffff8881d62faa80 R14: ffff8881d90e3300 R15: ffff8881d9125570 [ 40.020679][ T1728] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 40.020691][ T1728] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.026735][ T22] RDX: 000000000000000c RSI: ffffffff8169efed RDI: 0000000000000064 [ 40.032766][ T1728] CR2: 00007f8ca1d13000 CR3: 00000001d3d1a000 CR4: 00000000001406f0 [ 40.040895][ T22] RBP: 0000000000000000 R08: ffff8881da236000 R09: fffffbfff11b25ae [ 40.048834][ T1728] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.048840][ T1728] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.048847][ T1728] Call Trace: [ 40.056892][ T22] R10: fffffbfff11b25ad R11: ffffffff88d92d6f R12: 0000000000000000 [ 40.064838][ T1728] tty_unregister_device+0x10d/0x1a0 [ 40.072786][ T22] R13: ffff8881d62faa80 R14: ffff8881d9139980 R15: ffff8881d913ddf0 [ 40.080725][ T1728] hso_probe.cold+0xc8/0x122 [ 40.080744][ T1728] usb_probe_interface+0x305/0x7a0 [ 40.089663][ T22] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 40.096215][ T1728] ? usb_probe_device+0x100/0x100 [ 40.096230][ T1728] really_probe+0x281/0x6d0 [ 40.104189][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.112155][ T1728] driver_probe_device+0x104/0x210 [ 40.112167][ T1728] __device_attach_driver+0x1c2/0x220 [ 40.112178][ T1728] ? driver_allows_async_probing+0x160/0x160 [ 40.112194][ T1728] bus_for_each_drv+0x162/0x1e0 [ 40.120177][ T22] CR2: 00007ffe9c810164 CR3: 00000001c72ce000 CR4: 00000000001406e0 [ 40.128401][ T1728] ? bus_rescan_devices+0x20/0x20 [ 40.128413][ T1728] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 40.128432][ T1728] ? lockdep_hardirqs_on+0x382/0x580 [ 40.136436][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.139800][ T1728] __device_attach+0x217/0x360 [ 40.147766][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.153016][ T1728] ? device_bind_driver+0xd0/0xd0 [ 40.160968][ T22] Kernel panic - not syncing: Fatal exception [ 40.165537][ T1728] ? kobject_uevent_env+0x29e/0x1150 [ 40.278117][ T1728] ? kobject_uevent_env+0x2a8/0x1150 [ 40.283391][ T1728] bus_probe_device+0x1e4/0x290 [ 40.288222][ T1728] ? blocking_notifier_call_chain+0x54/0xa0 [ 40.294093][ T1728] device_add+0xae6/0x16f0 [ 40.298488][ T1728] ? uevent_store+0x50/0x50 [ 40.302969][ T1728] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 40.308760][ T1728] usb_set_configuration+0xdf6/0x1670 [ 40.314141][ T1728] generic_probe+0x9d/0xd5 [ 40.318543][ T1728] usb_probe_device+0x99/0x100 [ 40.323301][ T1728] ? usb_suspend+0x620/0x620 [ 40.327877][ T1728] really_probe+0x281/0x6d0 [ 40.332370][ T1728] driver_probe_device+0x104/0x210 [ 40.337467][ T1728] __device_attach_driver+0x1c2/0x220 [ 40.342820][ T1728] ? driver_allows_async_probing+0x160/0x160 [ 40.348776][ T1728] bus_for_each_drv+0x162/0x1e0 [ 40.353606][ T1728] ? bus_rescan_devices+0x20/0x20 [ 40.358624][ T1728] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 40.364424][ T1728] ? lockdep_hardirqs_on+0x382/0x580 [ 40.369686][ T1728] __device_attach+0x217/0x360 [ 40.374428][ T1728] ? device_bind_driver+0xd0/0xd0 [ 40.379426][ T1728] ? kobject_uevent_env+0x29e/0x1150 [ 40.384687][ T1728] ? kobject_uevent_env+0x2a8/0x1150 [ 40.389948][ T1728] bus_probe_device+0x1e4/0x290 [ 40.394839][ T1728] ? blocking_notifier_call_chain+0x54/0xa0 [ 40.400752][ T1728] device_add+0xae6/0x16f0 [ 40.405155][ T1728] ? uevent_store+0x50/0x50 [ 40.409637][ T1728] usb_new_device.cold+0x6a4/0xe79 [ 40.414726][ T1728] hub_event+0x1b5c/0x3640 [ 40.419130][ T1728] ? hub_port_debounce+0x260/0x260 [ 40.424218][ T1728] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 40.429739][ T1728] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 40.435018][ T1728] process_one_work+0x92b/0x1530 [ 40.439932][ T1728] ? pwq_dec_nr_in_flight+0x310/0x310 [ 40.445281][ T1728] worker_thread+0x96/0xe20 [ 40.449759][ T1728] ? process_one_work+0x1530/0x1530 [ 40.454931][ T1728] kthread+0x318/0x420 [ 40.458978][ T1728] ? kthread_create_on_node+0xf0/0xf0 [ 40.464329][ T1728] ret_from_fork+0x24/0x30 [ 40.468722][ T1728] Modules linked in: [ 40.473367][ T22] Kernel Offset: disabled [ 40.477684][ T22] Rebooting in 86400 seconds..