Warning: Permanently added '10.128.0.171' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 64.049109][ T95] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 64.068514][ T103] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 64.076331][ T94] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 64.084012][ T12] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 64.091760][ T5] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 64.099476][ T1812] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 64.148799][ T95] usb 1-1: Using ep0 maxpacket: 32 [ 64.168890][ T103] usb 5-1: Using ep0 maxpacket: 32 [ 64.188788][ T94] usb 6-1: Using ep0 maxpacket: 32 [ 64.194578][ T12] usb 3-1: Using ep0 maxpacket: 32 [ 64.200278][ T5] usb 2-1: Using ep0 maxpacket: 32 [ 64.205513][ T1812] usb 4-1: Using ep0 maxpacket: 32 [ 64.278645][ T95] usb 1-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 64.288131][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 64.288843][ T103] usb 5-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 64.298187][ T95] usb 1-1: config 0 descriptor?? [ 64.305556][ T103] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 64.319199][ T5] usb 2-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 64.328867][ T5] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 64.337012][ T1812] usb 4-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 64.346669][ T1812] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 64.355360][ T94] usb 6-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 64.364493][ T94] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 64.373993][ T5] usb 2-1: config 0 descriptor?? [ 64.379372][ T94] usb 6-1: config 0 descriptor?? [ 64.385307][ T1812] usb 4-1: config 0 descriptor?? [ 64.390522][ T12] usb 3-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 64.399928][ T12] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 64.409283][ T103] usb 5-1: config 0 descriptor?? [ 64.415764][ T12] usb 3-1: config 0 descriptor?? [ 64.579766][ T95] hso 1-1:0.0: Failed to find BULK IN ep [ 64.639326][ T94] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 64.650193][ T94] CPU: 0 PID: 94 Comm: kworker/0:2 Not tainted 5.5.0-syzkaller #0 [ 64.658196][ T94] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.668715][ T94] Workqueue: usb_hub_wq hub_event [ 64.673840][ T94] Call Trace: [ 64.677146][ T94] dump_stack+0xef/0x16e [ 64.681447][ T94] sysfs_warn_dup.cold+0x1c/0x2d [ 64.686918][ T94] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 64.693062][ T94] sysfs_create_link+0x61/0xc0 [ 64.698047][ T94] device_add+0x756/0x1bf0 [ 64.702456][ T94] ? lockdep_init_map+0x1b0/0x5e0 [ 64.707480][ T94] ? device_link_remove+0x110/0x110 [ 64.712734][ T94] ? __init_waitqueue_head+0x31/0x90 [ 64.718127][ T94] tty_register_device_attr+0x341/0x6f0 [ 64.723695][ T94] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 64.729671][ T94] ? mark_held_locks+0x9f/0xe0 [ 64.734423][ T94] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 64.740255][ T94] ? tty_port_register_device_attr+0xb9/0x110 [ 64.746446][ T94] hso_serial_common_create+0x113/0x710 [ 64.751987][ T94] ? kasan_unpoison_shadow+0x30/0x40 [ 64.757259][ T94] hso_probe+0xc93/0x1b7b [ 64.761585][ T94] usb_probe_interface+0x310/0x800 [ 64.766707][ T94] ? usb_probe_device+0x140/0x140 [ 64.771749][ T94] really_probe+0x290/0xac0 [ 64.776261][ T94] driver_probe_device+0x223/0x350 [ 64.781540][ T94] __device_attach_driver+0x1d1/0x290 [ 64.787089][ T94] ? driver_allows_async_probing+0x160/0x160 [ 64.793462][ T94] bus_for_each_drv+0x162/0x1e0 [ 64.798301][ T94] ? bus_rescan_devices+0x20/0x20 [ 64.803317][ T94] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 64.809169][ T94] ? lockdep_hardirqs_on+0x382/0x580 [ 64.814452][ T94] __device_attach+0x217/0x390 [ 64.819229][ T94] ? device_bind_driver+0xd0/0xd0 [ 64.824788][ T94] bus_probe_device+0x1e4/0x290 [ 64.829753][ T94] device_add+0x1459/0x1bf0 [ 64.834250][ T94] ? wait_for_completion+0x3c0/0x3c0 [ 64.839531][ T94] ? device_link_remove+0x110/0x110 [ 64.844906][ T94] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 64.850819][ T94] usb_set_configuration+0xe47/0x17d0 [ 64.856198][ T94] generic_probe+0x9d/0xd5 [ 64.860613][ T94] usb_probe_device+0xaf/0x140 [ 64.865417][ T94] ? usb_suspend+0x5f0/0x5f0 [ 64.869994][ T94] really_probe+0x290/0xac0 [ 64.874492][ T94] driver_probe_device+0x223/0x350 [ 64.879915][ T94] __device_attach_driver+0x1d1/0x290 executing program executing program [ 64.885378][ T94] ? driver_allows_async_probing+0x160/0x160 [ 64.891381][ T94] bus_for_each_drv+0x162/0x1e0 [ 64.896225][ T94] ? bus_rescan_devices+0x20/0x20 [ 64.901360][ T94] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 64.907173][ T94] ? lockdep_hardirqs_on+0x382/0x580 [ 64.912465][ T94] __device_attach+0x217/0x390 [ 64.917740][ T94] ? device_bind_driver+0xd0/0xd0 [ 64.922755][ T94] bus_probe_device+0x1e4/0x290 [ 64.927687][ T94] device_add+0x1459/0x1bf0 [ 64.932230][ T94] ? device_link_remove+0x110/0x110 [ 64.937551][ T94] usb_new_device.cold+0x540/0xcd0 [ 64.945234][ T94] hub_event+0x21cb/0x4300 [ 64.949759][ T94] ? hub_port_debounce+0x350/0x350 [ 64.955039][ T94] ? find_held_lock+0x2d/0x110 [ 64.959800][ T94] ? mark_held_locks+0xe0/0xe0 [ 64.964801][ T94] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.970658][ T94] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 64.976139][ T94] process_one_work+0x94b/0x1620 [ 64.981232][ T94] ? pwq_dec_nr_in_flight+0x310/0x310 [ 64.986603][ T94] ? do_raw_spin_lock+0x129/0x290 executing program [ 64.991696][ T94] worker_thread+0x96/0xe20 [ 64.996211][ T94] ? process_one_work+0x1620/0x1620 [ 65.001489][ T94] kthread+0x318/0x420 [ 65.005548][ T94] ? kthread_create_on_node+0xf0/0xf0 [ 65.010926][ T94] ret_from_fork+0x24/0x30 [ 65.017288][ T1812] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 65.025445][ T1812] CPU: 0 PID: 1812 Comm: kworker/0:4 Not tainted 5.5.0-syzkaller #0 [ 65.033608][ T1812] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.044191][ T1812] Workqueue: usb_hub_wq hub_event [ 65.049342][ T1812] Call Trace: [ 65.052636][ T1812] dump_stack+0xef/0x16e [ 65.057029][ T1812] sysfs_warn_dup.cold+0x1c/0x2d [ 65.061960][ T1812] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 65.068020][ T1812] sysfs_create_link+0x61/0xc0 [ 65.072765][ T1812] device_add+0x756/0x1bf0 [ 65.080723][ T1812] ? lockdep_init_map+0x1b0/0x5e0 [ 65.085901][ T1812] ? device_link_remove+0x110/0x110 [ 65.091084][ T1812] ? __init_waitqueue_head+0x31/0x90 [ 65.096368][ T1812] tty_register_device_attr+0x341/0x6f0 [ 65.101907][ T1812] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 65.107456][ T1812] ? mark_held_locks+0x9f/0xe0 [ 65.112214][ T1812] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 65.118017][ T1812] ? tty_port_register_device_attr+0xb9/0x110 [ 65.124156][ T1812] hso_serial_common_create+0x113/0x710 [ 65.130136][ T1812] ? kasan_unpoison_shadow+0x30/0x40 [ 65.135419][ T1812] hso_probe+0xc93/0x1b7b [ 65.139740][ T1812] usb_probe_interface+0x310/0x800 [ 65.144849][ T1812] ? usb_probe_device+0x140/0x140 [ 65.149866][ T1812] really_probe+0x290/0xac0 [ 65.154378][ T1812] driver_probe_device+0x223/0x350 [ 65.159619][ T1812] __device_attach_driver+0x1d1/0x290 [ 65.165007][ T1812] ? driver_allows_async_probing+0x160/0x160 [ 65.171104][ T1812] bus_for_each_drv+0x162/0x1e0 [ 65.176158][ T1812] ? bus_rescan_devices+0x20/0x20 [ 65.181178][ T1812] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 65.186971][ T1812] ? lockdep_hardirqs_on+0x382/0x580 executing program executing program executing program [ 65.192277][ T1812] __device_attach+0x217/0x390 [ 65.197119][ T1812] ? device_bind_driver+0xd0/0xd0 [ 65.202134][ T1812] bus_probe_device+0x1e4/0x290 [ 65.206984][ T1812] device_add+0x1459/0x1bf0 [ 65.211494][ T1812] ? wait_for_completion+0x3c0/0x3c0 [ 65.216774][ T1812] ? device_link_remove+0x110/0x110 [ 65.221969][ T1812] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 65.227804][ T1812] usb_set_configuration+0xe47/0x17d0 [ 65.233186][ T1812] generic_probe+0x9d/0xd5 [ 65.237932][ T1812] usb_probe_device+0xaf/0x140 [ 65.242755][ T1812] ? usb_suspend+0x5f0/0x5f0 [ 65.247437][ T1812] really_probe+0x290/0xac0 [ 65.251949][ T1812] driver_probe_device+0x223/0x350 [ 65.257066][ T1812] __device_attach_driver+0x1d1/0x290 [ 65.262434][ T1812] ? driver_allows_async_probing+0x160/0x160 [ 65.268581][ T1812] bus_for_each_drv+0x162/0x1e0 [ 65.273570][ T1812] ? bus_rescan_devices+0x20/0x20 [ 65.278659][ T1812] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 65.284451][ T1812] ? lockdep_hardirqs_on+0x382/0x580 [ 65.289722][ T1812] __device_attach+0x217/0x390 [ 65.294472][ T1812] ? device_bind_driver+0xd0/0xd0 [ 65.299602][ T1812] bus_probe_device+0x1e4/0x290 [ 65.304440][ T1812] device_add+0x1459/0x1bf0 [ 65.308984][ T1812] ? device_link_remove+0x110/0x110 [ 65.314174][ T1812] usb_new_device.cold+0x540/0xcd0 [ 65.319280][ T1812] hub_event+0x21cb/0x4300 [ 65.323688][ T1812] ? hub_port_debounce+0x350/0x350 [ 65.328788][ T1812] ? find_held_lock+0x2d/0x110 [ 65.333544][ T1812] ? mark_held_locks+0xe0/0xe0 [ 65.338300][ T1812] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.343955][ T1812] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 65.349229][ T1812] process_one_work+0x94b/0x1620 [ 65.354177][ T1812] ? __wake_up_common+0x650/0x650 [ 65.359208][ T1812] ? pwq_dec_nr_in_flight+0x310/0x310 [ 65.364587][ T1812] worker_thread+0x96/0xe20 [ 65.369117][ T1812] ? process_one_work+0x1620/0x1620 [ 65.374296][ T1812] kthread+0x318/0x420 [ 65.378353][ T1812] ? kthread_create_on_node+0xf0/0xf0 [ 65.383717][ T1812] ret_from_fork+0x24/0x30 [ 65.388594][ T12] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 65.396074][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.5.0-syzkaller #0 [ 65.404168][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.414248][ T12] Workqueue: usb_hub_wq hub_event [ 65.419273][ T12] Call Trace: [ 65.422566][ T12] dump_stack+0xef/0x16e [ 65.427240][ T12] sysfs_warn_dup.cold+0x1c/0x2d [ 65.432468][ T12] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 65.438550][ T12] sysfs_create_link+0x61/0xc0 [ 65.443391][ T12] device_add+0x756/0x1bf0 [ 65.447908][ T12] ? lockdep_init_map+0x1b0/0x5e0 [ 65.452944][ T12] ? device_link_remove+0x110/0x110 [ 65.458455][ T12] ? __init_waitqueue_head+0x31/0x90 [ 65.463809][ T12] tty_register_device_attr+0x341/0x6f0 [ 65.469486][ T12] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 65.475267][ T12] ? mark_held_locks+0x9f/0xe0 [ 65.480026][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 65.486093][ T12] ? tty_port_register_device_attr+0xb9/0x110 [ 65.492309][ T12] hso_serial_common_create+0x113/0x710 [ 65.498081][ T12] ? kasan_unpoison_shadow+0x30/0x40 [ 65.503373][ T12] hso_probe+0xc93/0x1b7b [ 65.508322][ T12] usb_probe_interface+0x310/0x800 [ 65.513558][ T12] ? usb_probe_device+0x140/0x140 [ 65.518698][ T12] really_probe+0x290/0xac0 [ 65.523327][ T12] driver_probe_device+0x223/0x350 [ 65.528467][ T12] __device_attach_driver+0x1d1/0x290 [ 65.533826][ T12] ? driver_allows_async_probing+0x160/0x160 [ 65.539854][ T12] bus_for_each_drv+0x162/0x1e0 [ 65.544958][ T12] ? bus_rescan_devices+0x20/0x20 [ 65.549994][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 65.556016][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 65.561290][ T12] __device_attach+0x217/0x390 [ 65.566069][ T12] ? device_bind_driver+0xd0/0xd0 [ 65.571086][ T12] bus_probe_device+0x1e4/0x290 [ 65.576074][ T12] device_add+0x1459/0x1bf0 [ 65.580650][ T12] ? wait_for_completion+0x3c0/0x3c0 [ 65.585924][ T12] ? device_link_remove+0x110/0x110 [ 65.591987][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 65.597848][ T12] usb_set_configuration+0xe47/0x17d0 [ 65.603405][ T12] generic_probe+0x9d/0xd5 [ 65.607817][ T12] usb_probe_device+0xaf/0x140 [ 65.612589][ T12] ? usb_suspend+0x5f0/0x5f0 [ 65.617666][ T12] really_probe+0x290/0xac0 [ 65.622177][ T12] driver_probe_device+0x223/0x350 [ 65.627288][ T12] __device_attach_driver+0x1d1/0x290 [ 65.632677][ T12] ? driver_allows_async_probing+0x160/0x160 [ 65.638664][ T12] bus_for_each_drv+0x162/0x1e0 [ 65.643610][ T12] ? bus_rescan_devices+0x20/0x20 [ 65.648978][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 65.655388][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 65.660697][ T12] __device_attach+0x217/0x390 [ 65.665454][ T12] ? device_bind_driver+0xd0/0xd0 [ 65.670662][ T12] bus_probe_device+0x1e4/0x290 [ 65.675504][ T12] device_add+0x1459/0x1bf0 [ 65.680012][ T12] ? device_link_remove+0x110/0x110 [ 65.685214][ T12] usb_new_device.cold+0x540/0xcd0 [ 65.693665][ T12] hub_event+0x21cb/0x4300 [ 65.698275][ T12] ? hub_port_debounce+0x350/0x350 [ 65.703630][ T12] ? find_held_lock+0x2d/0x110 [ 65.708399][ T12] ? mark_held_locks+0xe0/0xe0 [ 65.713898][ T12] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.719449][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 65.724733][ T12] process_one_work+0x94b/0x1620 [ 65.730109][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 65.735535][ T12] ? do_raw_spin_lock+0x129/0x290 [ 65.740591][ T12] worker_thread+0x96/0xe20 [ 65.745366][ T12] ? process_one_work+0x1620/0x1620 [ 65.750561][ T12] kthread+0x318/0x420 [ 65.754727][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 65.760084][ T12] ret_from_fork+0x24/0x30 [ 65.765039][ T103] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 65.773408][ T103] CPU: 0 PID: 103 Comm: kworker/0:3 Not tainted 5.5.0-syzkaller #0 [ 65.781282][ T103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.791356][ T103] Workqueue: usb_hub_wq hub_event [ 65.796367][ T103] Call Trace: [ 65.799661][ T103] dump_stack+0xef/0x16e [ 65.804147][ T103] sysfs_warn_dup.cold+0x1c/0x2d [ 65.809275][ T103] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 65.815372][ T103] sysfs_create_link+0x61/0xc0 [ 65.820142][ T103] device_add+0x756/0x1bf0 [ 65.824564][ T103] ? lockdep_init_map+0x1b0/0x5e0 [ 65.829619][ T103] ? device_link_remove+0x110/0x110 [ 65.834842][ T103] ? __init_waitqueue_head+0x31/0x90 [ 65.840123][ T103] tty_register_device_attr+0x341/0x6f0 [ 65.845702][ T103] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 65.851286][ T103] ? mark_held_locks+0x9f/0xe0 [ 65.856050][ T103] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 65.861855][ T103] ? tty_port_register_device_attr+0xb9/0x110 [ 65.867910][ T103] hso_serial_common_create+0x113/0x710 [ 65.874040][ T103] ? kasan_unpoison_shadow+0x30/0x40 [ 65.879325][ T103] hso_probe+0xc93/0x1b7b [ 65.883704][ T103] usb_probe_interface+0x310/0x800 [ 65.888922][ T103] ? usb_probe_device+0x140/0x140 [ 65.894109][ T103] really_probe+0x290/0xac0 [ 65.898688][ T103] driver_probe_device+0x223/0x350 [ 65.903866][ T103] __device_attach_driver+0x1d1/0x290 [ 65.909343][ T103] ? driver_allows_async_probing+0x160/0x160 [ 65.915494][ T103] bus_for_each_drv+0x162/0x1e0 [ 65.920336][ T103] ? bus_rescan_devices+0x20/0x20 [ 65.925374][ T103] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 65.931184][ T103] ? lockdep_hardirqs_on+0x382/0x580 [ 65.936504][ T103] __device_attach+0x217/0x390 [ 65.941488][ T103] ? device_bind_driver+0xd0/0xd0 [ 65.946500][ T103] bus_probe_device+0x1e4/0x290 [ 65.951421][ T103] device_add+0x1459/0x1bf0 [ 65.955926][ T103] ? wait_for_completion+0x3c0/0x3c0 [ 65.961294][ T103] ? device_link_remove+0x110/0x110 [ 65.966536][ T103] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 65.972335][ T103] usb_set_configuration+0xe47/0x17d0 [ 65.978011][ T103] generic_probe+0x9d/0xd5 [ 65.982529][ T103] usb_probe_device+0xaf/0x140 [ 65.987283][ T103] ? usb_suspend+0x5f0/0x5f0 [ 65.991986][ T103] really_probe+0x290/0xac0 [ 65.996574][ T103] driver_probe_device+0x223/0x350 [ 66.001713][ T103] __device_attach_driver+0x1d1/0x290 [ 66.007080][ T103] ? driver_allows_async_probing+0x160/0x160 [ 66.013159][ T103] bus_for_each_drv+0x162/0x1e0 [ 66.018013][ T103] ? bus_rescan_devices+0x20/0x20 [ 66.023127][ T103] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 66.029103][ T103] ? lockdep_hardirqs_on+0x382/0x580 [ 66.034474][ T103] __device_attach+0x217/0x390 [ 66.039233][ T103] ? device_bind_driver+0xd0/0xd0 [ 66.044510][ T103] bus_probe_device+0x1e4/0x290 [ 66.049355][ T103] device_add+0x1459/0x1bf0 [ 66.053965][ T103] ? device_link_remove+0x110/0x110 [ 66.059349][ T103] usb_new_device.cold+0x540/0xcd0 [ 66.065224][ T103] hub_event+0x21cb/0x4300 [ 66.070727][ T103] ? hub_port_debounce+0x350/0x350 [ 66.075831][ T103] ? find_held_lock+0x2d/0x110 [ 66.080919][ T103] ? mark_held_locks+0xe0/0xe0 [ 66.085687][ T103] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 66.091448][ T103] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 66.096978][ T103] process_one_work+0x94b/0x1620 [ 66.102198][ T103] ? pwq_dec_nr_in_flight+0x310/0x310 [ 66.107881][ T103] ? do_raw_spin_lock+0x129/0x290 [ 66.113065][ T103] worker_thread+0x96/0xe20 [ 66.117563][ T103] ? process_one_work+0x1620/0x1620 [ 66.123259][ T103] kthread+0x318/0x420 [ 66.127412][ T103] ? kthread_create_on_node+0xf0/0xf0 [ 66.132796][ T103] ret_from_fork+0x24/0x30 [ 66.138375][ T5] hso 2-1:0.0: Failed to find BULK IN ep [ 66.147354][ T5] usb 2-1: USB disconnect, device number 2 [ 66.153568][ T1812] hso 4-1:0.0: Failed to find BULK IN ep [ 66.159411][ T1812] general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#1] SMP KASAN [ 66.170638][ T1812] KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067] [ 66.179131][ T1812] CPU: 0 PID: 1812 Comm: kworker/0:4 Not tainted 5.5.0-syzkaller #0 [ 66.187195][ T1812] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.197464][ T1812] Workqueue: usb_hub_wq hub_event [ 66.202493][ T1812] RIP: 0010:cdev_del+0x22/0x90 [ 66.207253][ T1812] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 b3 c6 d2 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 [ 66.227173][ T1812] RSP: 0018:ffff8881cd567258 EFLAGS: 00010207 [ 66.233316][ T1812] RAX: dffffc0000000000 RBX: ffff8881d501cf00 RCX: ffffffff821539be [ 66.241276][ T1812] RDX: 000000000000000c RSI: ffffffff816c856d RDI: 0000000000000064 [ 66.249238][ T1812] RBP: 0000000000000000 R08: ffff8881ceefc980 R09: fffffbfff1265a8f [ 66.257210][ T1812] R10: fffffbfff1265a8e R11: ffffffff8932d477 R12: 0000000000000000 [ 66.265170][ T1812] R13: ffff8881d51fb000 R14: ffff8881cd4f6000 R15: ffff8881cd477070 [ 66.273129][ T1812] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 66.282093][ T1812] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.288673][ T1812] CR2: 00000000004c44e8 CR3: 0000000007021000 CR4: 00000000001406f0 [ 66.296633][ T1812] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.304666][ T1812] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.312640][ T1812] Call Trace: [ 66.315921][ T1812] tty_unregister_device+0x10d/0x1a0 [ 66.321193][ T1812] hso_probe.cold+0x6e/0x14c [ 66.325949][ T1812] usb_probe_interface+0x310/0x800 [ 66.331049][ T1812] ? usb_probe_device+0x140/0x140 [ 66.336101][ T1812] really_probe+0x290/0xac0 [ 66.340845][ T1812] driver_probe_device+0x223/0x350 [ 66.346302][ T1812] __device_attach_driver+0x1d1/0x290 [ 66.351666][ T1812] ? driver_allows_async_probing+0x160/0x160 [ 66.358273][ T1812] bus_for_each_drv+0x162/0x1e0 [ 66.363114][ T1812] ? bus_rescan_devices+0x20/0x20 [ 66.368119][ T1812] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 66.373910][ T1812] ? lockdep_hardirqs_on+0x382/0x580 [ 66.379189][ T1812] __device_attach+0x217/0x390 [ 66.383937][ T1812] ? device_bind_driver+0xd0/0xd0 [ 66.388960][ T1812] bus_probe_device+0x1e4/0x290 [ 66.393956][ T1812] device_add+0x1459/0x1bf0 [ 66.398453][ T1812] ? wait_for_completion+0x3c0/0x3c0 [ 66.403829][ T1812] ? device_link_remove+0x110/0x110 [ 66.409015][ T1812] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 66.414896][ T1812] usb_set_configuration+0xe47/0x17d0 [ 66.420253][ T1812] generic_probe+0x9d/0xd5 [ 66.425995][ T1812] usb_probe_device+0xaf/0x140 [ 66.430743][ T1812] ? usb_suspend+0x5f0/0x5f0 [ 66.435359][ T1812] really_probe+0x290/0xac0 [ 66.439866][ T1812] driver_probe_device+0x223/0x350 [ 66.444970][ T1812] __device_attach_driver+0x1d1/0x290 [ 66.450329][ T1812] ? driver_allows_async_probing+0x160/0x160 [ 66.456302][ T1812] bus_for_each_drv+0x162/0x1e0 [ 66.461247][ T1812] ? bus_rescan_devices+0x20/0x20 [ 66.466261][ T1812] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 66.472091][ T1812] ? lockdep_hardirqs_on+0x382/0x580 [ 66.477389][ T1812] __device_attach+0x217/0x390 [ 66.482147][ T1812] ? device_bind_driver+0xd0/0xd0 [ 66.487267][ T1812] bus_probe_device+0x1e4/0x290 [ 66.492110][ T1812] device_add+0x1459/0x1bf0 [ 66.496606][ T1812] ? device_link_remove+0x110/0x110 [ 66.501790][ T1812] usb_new_device.cold+0x540/0xcd0 [ 66.506883][ T1812] hub_event+0x21cb/0x4300 [ 66.511286][ T1812] ? hub_port_debounce+0x350/0x350 [ 66.516390][ T1812] ? find_held_lock+0x2d/0x110 [ 66.521232][ T1812] ? mark_held_locks+0xe0/0xe0 [ 66.525984][ T1812] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 66.531662][ T1812] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 66.538817][ T1812] process_one_work+0x94b/0x1620 [ 66.543743][ T1812] ? __wake_up_common+0x650/0x650 [ 66.548783][ T1812] ? pwq_dec_nr_in_flight+0x310/0x310 [ 66.554150][ T1812] worker_thread+0x96/0xe20 [ 66.558666][ T1812] ? process_one_work+0x1620/0x1620 [ 66.563859][ T1812] kthread+0x318/0x420 [ 66.568814][ T1812] ? kthread_create_on_node+0xf0/0xf0 [ 66.574632][ T1812] ret_from_fork+0x24/0x30 [ 66.579197][ T1812] Modules linked in: [ 66.583142][ T1812] ---[ end trace efa99dfdf2899f18 ]--- [ 66.588773][ T1812] RIP: 0010:cdev_del+0x22/0x90 [ 66.593711][ T1812] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 b3 c6 d2 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 [ 66.613940][ T1812] RSP: 0018:ffff8881cd567258 EFLAGS: 00010207 [ 66.620299][ T1812] RAX: dffffc0000000000 RBX: ffff8881d501cf00 RCX: ffffffff821539be [ 66.628579][ T1812] RDX: 000000000000000c RSI: ffffffff816c856d RDI: 0000000000000064 [ 66.636574][ T1812] RBP: 0000000000000000 R08: ffff8881ceefc980 R09: fffffbfff1265a8f [ 66.644755][ T1812] R10: fffffbfff1265a8e R11: ffffffff8932d477 R12: 0000000000000000 [ 66.652919][ T1812] R13: ffff8881d51fb000 R14: ffff8881cd4f6000 R15: ffff8881cd477070 [ 66.661052][ T1812] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 66.670003][ T1812] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.676693][ T1812] CR2: 00000000004c44e8 CR3: 0000000007021000 CR4: 00000000001406f0 [ 66.684823][ T1812] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.692944][ T1812] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.701215][ T1812] Kernel panic - not syncing: Fatal exception [ 66.709215][ T1812] Kernel Offset: disabled [ 66.713658][ T1812] Rebooting in 86400 seconds..