[ OK ] Started OpenBSD Secure Shell server. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.29' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 27.845615][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 27.853328][ T94] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 27.861223][ T5] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 27.875655][ T156] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 27.883867][ T95] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 27.891886][ T17] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 27.955914][ T12] usb 1-1: Using ep0 maxpacket: 32 [ 27.961235][ T94] usb 4-1: Using ep0 maxpacket: 32 [ 27.967825][ T5] usb 6-1: Using ep0 maxpacket: 32 [ 27.996085][ T17] usb 3-1: Using ep0 maxpacket: 32 [ 28.001317][ T95] usb 5-1: Using ep0 maxpacket: 32 [ 28.006894][ T156] usb 2-1: Using ep0 maxpacket: 32 [ 28.075555][ T12] usb 1-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 28.085500][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 28.096001][ T94] usb 4-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 28.106246][ T94] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 28.114403][ T5] usb 6-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 28.123597][ T5] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 28.134000][ T12] usb 1-1: config 0 descriptor?? [ 28.136883][ T17] usb 3-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 28.142420][ T5] usb 6-1: config 0 descriptor?? [ 28.148463][ T17] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 28.157573][ T94] usb 4-1: config 0 descriptor?? [ 28.166091][ T156] usb 2-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 28.176853][ T156] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 28.185588][ T95] usb 5-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 28.195042][ T95] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 28.208973][ T95] usb 5-1: config 0 descriptor?? [ 28.215702][ T156] usb 2-1: config 0 descriptor?? [ 28.227211][ T17] usb 3-1: config 0 descriptor?? [ 28.426606][ T5] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 28.435077][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.7.0-rc1-syzkaller #0 [ 28.443277][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.453339][ T5] Workqueue: usb_hub_wq hub_event [ 28.458564][ T5] Call Trace: [ 28.461925][ T5] dump_stack+0xef/0x16e [ 28.466303][ T5] sysfs_warn_dup.cold+0x1c/0x2d [ 28.471374][ T5] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 28.477439][ T5] sysfs_create_link+0x61/0xc0 [ 28.482204][ T5] device_add+0x74d/0x1c20 [ 28.486689][ T5] ? lockdep_init_map_waits+0x26a/0x7c0 [ 28.492363][ T5] ? device_link_remove+0x110/0x110 [ 28.497572][ T5] ? __init_waitqueue_head+0x97/0x110 [ 28.503026][ T5] ? pm_runtime_init+0x2cf/0x3b0 [ 28.508045][ T5] tty_register_device_attr+0x341/0x6f0 [ 28.513583][ T5] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 28.519123][ T5] ? lock_downgrade+0x720/0x720 [ 28.524127][ T5] ? mark_held_locks+0x9f/0xe0 [ 28.529037][ T5] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 28.535166][ T5] ? tty_port_register_device_attr+0xb9/0x110 [ 28.541377][ T5] hso_serial_common_create+0x113/0x710 [ 28.547186][ T5] ? kasan_unpoison_shadow+0x30/0x40 [ 28.552540][ T5] hso_probe+0xc93/0x1b7d [ 28.557021][ T5] usb_probe_interface+0x310/0x800 [ 28.562124][ T5] ? usb_probe_device+0x230/0x230 [ 28.567148][ T5] really_probe+0x290/0xac0 [ 28.571663][ T5] driver_probe_device+0x223/0x350 [ 28.576778][ T5] __device_attach_driver+0x1d1/0x290 [ 28.582292][ T5] ? driver_allows_async_probing+0x160/0x160 [ 28.589062][ T5] bus_for_each_drv+0x162/0x1e0 [ 28.594199][ T5] ? bus_rescan_devices+0x20/0x20 [ 28.599216][ T5] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 28.605171][ T5] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 28.610459][ T5] __device_attach+0x21a/0x390 [ 28.615365][ T5] ? device_bind_driver+0xd0/0xd0 [ 28.620610][ T5] bus_probe_device+0x1e4/0x290 [ 28.625506][ T5] device_add+0x1367/0x1c20 [ 28.630038][ T5] ? wait_for_completion+0x280/0x280 [ 28.635335][ T5] ? device_link_remove+0x110/0x110 [ 28.640545][ T5] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 28.646419][ T5] usb_set_configuration+0xed4/0x1850 [ 28.651795][ T5] usb_generic_driver_probe+0x9d/0xe0 [ 28.657167][ T5] usb_probe_device+0xd9/0x230 [ 28.661925][ T5] ? usb_suspend+0x600/0x600 [ 28.666550][ T5] really_probe+0x290/0xac0 [ 28.671264][ T5] driver_probe_device+0x223/0x350 [ 28.676373][ T5] __device_attach_driver+0x1d1/0x290 [ 28.681910][ T5] ? driver_allows_async_probing+0x160/0x160 [ 28.687968][ T5] bus_for_each_drv+0x162/0x1e0 [ 28.693266][ T5] ? bus_rescan_devices+0x20/0x20 [ 28.698392][ T5] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 28.704749][ T5] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 28.710111][ T5] __device_attach+0x21a/0x390 [ 28.714864][ T5] ? device_bind_driver+0xd0/0xd0 [ 28.720123][ T5] bus_probe_device+0x1e4/0x290 [ 28.725014][ T5] device_add+0x1367/0x1c20 [ 28.729506][ T5] ? device_link_remove+0x110/0x110 [ 28.734696][ T5] usb_new_device.cold+0x552/0xf6e [ 28.739857][ T5] ? hub_disconnect+0x4a0/0x4a0 [ 28.744700][ T5] ? mark_held_locks+0x9f/0xe0 [ 28.749690][ T5] ? _raw_spin_unlock_irq+0x1f/0x30 [ 28.754875][ T5] hub_event+0x226d/0x43c0 [ 28.759399][ T5] ? hub_port_debounce+0x350/0x350 [ 28.764552][ T5] ? umh_clean_and_save_pid+0x1/0xd0 [ 28.769959][ T5] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 28.776329][ T5] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 28.781692][ T5] ? _raw_spin_unlock_irq+0x1f/0x30 [ 28.786876][ T5] process_one_work+0x965/0x1630 [ 28.791807][ T5] ? __wake_up_common_lock+0xde/0x130 [ 28.797224][ T5] ? pwq_dec_nr_in_flight+0x310/0x310 [ 28.802788][ T5] ? rwlock_bug.part.0+0x90/0x90 [ 28.809413][ T5] ? del_timer_sync+0x115/0x130 [ 28.814343][ T5] worker_thread+0x96/0xe20 [ 28.818929][ T5] ? process_one_work+0x1630/0x1630 [ 28.824132][ T5] kthread+0x326/0x430 [ 28.828289][ T5] ? kthread_create_on_node+0xf0/0xf0 [ 28.833890][ T5] ret_from_fork+0x24/0x30 [ 28.839071][ T12] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 28.845479][ T95] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 28.846808][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.7.0-rc1-syzkaller #0 [ 28.863026][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.873088][ T12] Workqueue: usb_hub_wq hub_event [ 28.878125][ T12] Call Trace: [ 28.881413][ T12] dump_stack+0xef/0x16e [ 28.885662][ T12] sysfs_warn_dup.cold+0x1c/0x2d [ 28.890682][ T12] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 28.896738][ T12] sysfs_create_link+0x61/0xc0 [ 28.901521][ T12] device_add+0x74d/0x1c20 [ 28.905995][ T12] ? lockdep_init_map_waits+0x26a/0x7c0 [ 28.912849][ T12] ? device_link_remove+0x110/0x110 [ 28.918393][ T12] ? __init_waitqueue_head+0x97/0x110 [ 28.923985][ T12] ? pm_runtime_init+0x2cf/0x3b0 [ 28.928918][ T12] tty_register_device_attr+0x341/0x6f0 [ 28.934486][ T12] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 28.940118][ T12] ? lock_downgrade+0x720/0x720 [ 28.945024][ T12] ? mark_held_locks+0x9f/0xe0 [ 28.949783][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 28.955692][ T12] ? tty_port_register_device_attr+0xb9/0x110 [ 28.961847][ T12] hso_serial_common_create+0x113/0x710 [ 28.967475][ T12] ? kasan_unpoison_shadow+0x30/0x40 [ 28.973160][ T12] hso_probe+0xc93/0x1b7d [ 28.977488][ T12] usb_probe_interface+0x310/0x800 [ 28.982590][ T12] ? usb_probe_device+0x230/0x230 [ 28.987747][ T12] really_probe+0x290/0xac0 [ 28.992243][ T12] driver_probe_device+0x223/0x350 [ 28.997415][ T12] __device_attach_driver+0x1d1/0x290 [ 29.002857][ T12] ? driver_allows_async_probing+0x160/0x160 [ 29.008833][ T12] bus_for_each_drv+0x162/0x1e0 [ 29.013678][ T12] ? bus_rescan_devices+0x20/0x20 [ 29.018900][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 29.024717][ T12] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 29.030013][ T12] __device_attach+0x21a/0x390 [ 29.035184][ T12] ? device_bind_driver+0xd0/0xd0 [ 29.040259][ T12] bus_probe_device+0x1e4/0x290 [ 29.045338][ T12] device_add+0x1367/0x1c20 [ 29.050124][ T12] ? wait_for_completion+0x280/0x280 [ 29.056010][ T12] ? device_link_remove+0x110/0x110 [ 29.061815][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 29.067752][ T12] usb_set_configuration+0xed4/0x1850 [ 29.073337][ T12] usb_generic_driver_probe+0x9d/0xe0 [ 29.078773][ T12] usb_probe_device+0xd9/0x230 [ 29.083796][ T12] ? usb_suspend+0x600/0x600 [ 29.088468][ T12] really_probe+0x290/0xac0 [ 29.093042][ T12] driver_probe_device+0x223/0x350 [ 29.098284][ T12] __device_attach_driver+0x1d1/0x290 [ 29.103800][ T12] ? driver_allows_async_probing+0x160/0x160 [ 29.109758][ T12] bus_for_each_drv+0x162/0x1e0 [ 29.114780][ T12] ? bus_rescan_devices+0x20/0x20 [ 29.119800][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 29.125604][ T12] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 29.131146][ T12] __device_attach+0x21a/0x390 [ 29.136067][ T12] ? device_bind_driver+0xd0/0xd0 [ 29.141129][ T12] bus_probe_device+0x1e4/0x290 [ 29.146206][ T12] device_add+0x1367/0x1c20 [ 29.150738][ T12] ? device_link_remove+0x110/0x110 [ 29.156027][ T12] usb_new_device.cold+0x552/0xf6e [ 29.161175][ T12] ? hub_disconnect+0x4a0/0x4a0 [ 29.166023][ T12] ? mark_held_locks+0x9f/0xe0 [ 29.170797][ T12] ? _raw_spin_unlock_irq+0x1f/0x30 [ 29.176258][ T12] hub_event+0x226d/0x43c0 [ 29.180930][ T12] ? hub_port_debounce+0x350/0x350 [ 29.186153][ T12] ? umh_clean_and_save_pid+0x1/0xd0 [ 29.191734][ T12] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 29.197555][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 29.202841][ T12] ? _raw_spin_unlock_irq+0x1f/0x30 [ 29.208085][ T12] process_one_work+0x965/0x1630 [ 29.213019][ T12] ? lock_release+0x720/0x720 [ 29.218001][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 29.223373][ T12] ? rwlock_bug.part.0+0x90/0x90 [ 29.228347][ T12] worker_thread+0x96/0xe20 [ 29.233115][ T12] ? process_one_work+0x1630/0x1630 [ 29.238573][ T12] kthread+0x326/0x430 [ 29.242639][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 29.248196][ T12] ret_from_fork+0x24/0x30 [ 29.252683][ T95] CPU: 1 PID: 95 Comm: kworker/1:2 Not tainted 5.7.0-rc1-syzkaller #0 [ 29.260982][ T95] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.271047][ T95] Workqueue: usb_hub_wq hub_event [ 29.276299][ T95] Call Trace: [ 29.281070][ T95] dump_stack+0xef/0x16e [ 29.285370][ T95] sysfs_warn_dup.cold+0x1c/0x2d [ 29.290421][ T95] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 29.296708][ T95] sysfs_create_link+0x61/0xc0 [ 29.301554][ T95] device_add+0x74d/0x1c20 [ 29.306108][ T95] ? lockdep_init_map_waits+0x26a/0x7c0 [ 29.311820][ T95] ? device_link_remove+0x110/0x110 [ 29.317659][ T95] ? __init_waitqueue_head+0x97/0x110 [ 29.323050][ T95] ? pm_runtime_init+0x2cf/0x3b0 [ 29.328164][ T95] tty_register_device_attr+0x341/0x6f0 [ 29.333702][ T95] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 29.339378][ T95] ? lock_downgrade+0x720/0x720 [ 29.344221][ T95] ? mark_held_locks+0x9f/0xe0 [ 29.349042][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 29.354845][ T95] ? tty_port_register_device_attr+0xb9/0x110 [ 29.361238][ T95] hso_serial_common_create+0x113/0x710 [ 29.366984][ T95] ? kasan_unpoison_shadow+0x30/0x40 [ 29.372521][ T95] hso_probe+0xc93/0x1b7d [ 29.376934][ T95] usb_probe_interface+0x310/0x800 [ 29.382299][ T95] ? usb_probe_device+0x230/0x230 [ 29.387533][ T95] really_probe+0x290/0xac0 [ 29.392210][ T95] driver_probe_device+0x223/0x350 [ 29.397798][ T95] __device_attach_driver+0x1d1/0x290 [ 29.403430][ T95] ? driver_allows_async_probing+0x160/0x160 [ 29.409835][ T95] bus_for_each_drv+0x162/0x1e0 [ 29.414900][ T95] ? bus_rescan_devices+0x20/0x20 [ 29.419929][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 29.425961][ T95] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 29.431239][ T95] __device_attach+0x21a/0x390 [ 29.436002][ T95] ? device_bind_driver+0xd0/0xd0 [ 29.441488][ T95] bus_probe_device+0x1e4/0x290 [ 29.446378][ T95] device_add+0x1367/0x1c20 [ 29.451288][ T95] ? wait_for_completion+0x280/0x280 [ 29.456654][ T95] ? device_link_remove+0x110/0x110 [ 29.461938][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 29.467808][ T95] usb_set_configuration+0xed4/0x1850 [ 29.473199][ T95] usb_generic_driver_probe+0x9d/0xe0 [ 29.478617][ T95] usb_probe_device+0xd9/0x230 [ 29.483494][ T95] ? usb_suspend+0x600/0x600 [ 29.488097][ T95] really_probe+0x290/0xac0 [ 29.492596][ T95] driver_probe_device+0x223/0x350 [ 29.497702][ T95] __device_attach_driver+0x1d1/0x290 [ 29.503150][ T95] ? driver_allows_async_probing+0x160/0x160 [ 29.509193][ T95] bus_for_each_drv+0x162/0x1e0 [ 29.514300][ T95] ? bus_rescan_devices+0x20/0x20 [ 29.519393][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 29.525278][ T95] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 29.530561][ T95] __device_attach+0x21a/0x390 [ 29.535466][ T95] ? device_bind_driver+0xd0/0xd0 [ 29.540485][ T95] bus_probe_device+0x1e4/0x290 [ 29.545415][ T95] device_add+0x1367/0x1c20 [ 29.549912][ T95] ? device_link_remove+0x110/0x110 [ 29.555192][ T95] usb_new_device.cold+0x552/0xf6e [ 29.560299][ T95] ? hub_disconnect+0x4a0/0x4a0 [ 29.565166][ T95] ? mark_held_locks+0x9f/0xe0 [ 29.569918][ T95] ? _raw_spin_unlock_irq+0x1f/0x30 [ 29.575150][ T95] hub_event+0x226d/0x43c0 [ 29.579738][ T95] ? hub_port_debounce+0x350/0x350 [ 29.584845][ T95] ? umh_clean_and_save_pid+0x1/0xd0 [ 29.590211][ T95] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 29.595771][ T95] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 29.601112][ T95] ? _raw_spin_unlock_irq+0x1f/0x30 [ 29.606303][ T95] process_one_work+0x965/0x1630 [ 29.611320][ T95] ? lock_release+0x720/0x720 [ 29.616163][ T95] ? pwq_dec_nr_in_flight+0x310/0x310 [ 29.621525][ T95] ? rwlock_bug.part.0+0x90/0x90 [ 29.626450][ T95] worker_thread+0x96/0xe20 executing program [ 29.631078][ T95] ? process_one_work+0x1630/0x1630 [ 29.636268][ T95] kthread+0x326/0x430 [ 29.640329][ T95] ? kthread_create_on_node+0xf0/0xf0 [ 29.645690][ T95] ret_from_fork+0x24/0x30 [ 29.650943][ T156] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 29.651010][ T94] hso 4-1:0.0: Failed to find BULK IN ep [ 29.658680][ T156] CPU: 1 PID: 156 Comm: kworker/1:3 Not tainted 5.7.0-rc1-syzkaller #0 executing program [ 29.672713][ T156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.683412][ T156] Workqueue: usb_hub_wq hub_event [ 29.688448][ T156] Call Trace: [ 29.688919][ T94] usb 4-1: USB disconnect, device number 2 [ 29.691898][ T156] dump_stack+0xef/0x16e [ 29.691913][ T156] sysfs_warn_dup.cold+0x1c/0x2d [ 29.691930][ T156] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 29.713236][ T156] sysfs_create_link+0x61/0xc0 [ 29.718019][ T156] device_add+0x74d/0x1c20 [ 29.722899][ T156] ? lockdep_init_map_waits+0x26a/0x7c0 executing program [ 29.728464][ T156] ? device_link_remove+0x110/0x110 [ 29.733773][ T156] ? __init_waitqueue_head+0x97/0x110 [ 29.740899][ T156] ? pm_runtime_init+0x2cf/0x3b0 [ 29.745853][ T156] tty_register_device_attr+0x341/0x6f0 [ 29.751781][ T156] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 29.757521][ T156] ? lock_downgrade+0x720/0x720 [ 29.758064][ T5] hso 6-1:0.0: Failed to find BULK IN ep [ 29.762381][ T156] ? mark_held_locks+0x9f/0xe0 [ 29.762397][ T156] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 29.762413][ T156] ? tty_port_register_device_attr+0xb9/0x110 [ 29.762429][ T156] hso_serial_common_create+0x113/0x710 [ 29.768209][ T5] general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#1] SMP KASAN [ 29.773016][ T156] ? kasan_unpoison_shadow+0x30/0x40 [ 29.778884][ T5] KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067] [ 29.785388][ T156] hso_probe+0xc93/0x1b7d [ 29.790970][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.7.0-rc1-syzkaller #0 [ 29.802425][ T156] usb_probe_interface+0x310/0x800 [ 29.808184][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.816720][ T156] ? usb_probe_device+0x230/0x230 [ 29.821115][ T5] Workqueue: usb_hub_wq hub_event [ 29.829159][ T156] really_probe+0x290/0xac0 [ 29.834250][ T5] RIP: 0010:cdev_del+0x22/0x90 [ 29.844293][ T156] driver_probe_device+0x223/0x350 [ 29.849302][ T5] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 a3 dd d1 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 [ 29.854405][ T156] __device_attach_driver+0x1d1/0x290 [ 29.859109][ T5] RSP: 0018:ffff8881da1d7190 EFLAGS: 00010207 [ 29.863860][ T156] ? driver_allows_async_probing+0x160/0x160 [ 29.868944][ T5] RAX: dffffc0000000000 RBX: ffff8881d5250100 RCX: ffffffff821d817e [ 29.888582][ T156] bus_for_each_drv+0x162/0x1e0 [ 29.893927][ T5] RDX: 000000000000000c RSI: ffffffff816e5d0d RDI: 0000000000000064 [ 29.899983][ T156] ? bus_rescan_devices+0x20/0x20 [ 29.906001][ T5] RBP: 0000000000000000 R08: ffff8881da19e300 R09: fffffbfff126c8d6 [ 29.914008][ T156] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 29.919092][ T5] R10: ffffffff893646af R11: fffffbfff126c8d5 R12: 0000000000000000 [ 29.927070][ T156] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 29.932136][ T5] R13: ffff8881d531d000 R14: ffff8881cce39000 R15: ffff8881cd390070 [ 29.940113][ T156] __device_attach+0x21a/0x390 [ 29.946021][ T5] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 29.954070][ T156] ? device_bind_driver+0xd0/0xd0 [ 29.959430][ T5] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.968520][ T156] bus_probe_device+0x1e4/0x290 [ 29.973260][ T5] CR2: 000000000043f8b0 CR3: 00000001c90c8000 CR4: 00000000001406f0 [ 29.982173][ T156] device_add+0x1367/0x1c20 [ 29.987329][ T5] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.993979][ T156] ? wait_for_completion+0x280/0x280 [ 29.998804][ T5] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.006768][ T156] ? device_link_remove+0x110/0x110 [ 30.011282][ T5] Call Trace: [ 30.019300][ T156] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 30.024564][ T5] tty_unregister_device+0x10d/0x1a0 [ 30.032724][ T156] usb_set_configuration+0xed4/0x1850 [ 30.038165][ T5] hso_probe.cold+0x6e/0x15a [ 30.041523][ T156] usb_generic_driver_probe+0x9d/0xe0 [ 30.047373][ T5] usb_probe_interface+0x310/0x800 [ 30.052637][ T156] usb_probe_device+0xd9/0x230 [ 30.058001][ T5] ? usb_probe_device+0x230/0x230 [ 30.062574][ T156] ? usb_suspend+0x600/0x600 [ 30.067924][ T5] really_probe+0x290/0xac0 [ 30.073013][ T156] really_probe+0x290/0xac0 [ 30.077805][ T5] driver_probe_device+0x223/0x350 [ 30.082815][ T156] driver_probe_device+0x223/0x350 [ 30.087499][ T5] __device_attach_driver+0x1d1/0x290 [ 30.091985][ T156] __device_attach_driver+0x1d1/0x290 [ 30.096515][ T5] ? driver_allows_async_probing+0x160/0x160 [ 30.101827][ T156] ? driver_allows_async_probing+0x160/0x160 [ 30.106924][ T5] bus_for_each_drv+0x162/0x1e0 [ 30.112377][ T156] bus_for_each_drv+0x162/0x1e0 [ 30.117742][ T5] ? bus_rescan_devices+0x20/0x20 [ 30.123736][ T156] ? bus_rescan_devices+0x20/0x20 [ 30.129736][ T5] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 30.134653][ T156] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 30.139538][ T5] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 30.144698][ T156] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 30.149745][ T5] __device_attach+0x21a/0x390 [ 30.155571][ T156] __device_attach+0x21a/0x390 [ 30.161358][ T5] ? device_bind_driver+0xd0/0xd0 [ 30.166621][ T156] ? device_bind_driver+0xd0/0xd0 [ 30.171919][ T5] bus_probe_device+0x1e4/0x290 [ 30.176660][ T156] bus_probe_device+0x1e4/0x290 [ 30.181402][ T5] device_add+0x1367/0x1c20 [ 30.186494][ T156] device_add+0x1367/0x1c20 [ 30.191497][ T5] ? wait_for_completion+0x280/0x280 [ 30.196327][ T156] ? device_link_remove+0x110/0x110 [ 30.201160][ T5] ? device_link_remove+0x110/0x110 [ 30.205645][ T156] usb_new_device.cold+0x552/0xf6e [ 30.210252][ T5] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 30.215602][ T156] ? hub_disconnect+0x4a0/0x4a0 [ 30.220782][ T5] usb_set_configuration+0xed4/0x1850 [ 30.225968][ T156] ? mark_held_locks+0x9f/0xe0 [ 30.231295][ T5] usb_generic_driver_probe+0x9d/0xe0 [ 30.237266][ T156] ? _raw_spin_unlock_irq+0x1f/0x30 [ 30.242104][ T5] usb_probe_device+0xd9/0x230 [ 30.247624][ T156] hub_event+0x226d/0x43c0 [ 30.252606][ T5] ? usb_suspend+0x600/0x600 [ 30.258066][ T156] ? hub_port_debounce+0x350/0x350 [ 30.263377][ T5] really_probe+0x290/0xac0 [ 30.268124][ T156] ? umh_clean_and_save_pid+0x1/0xd0 [ 30.272593][ T5] driver_probe_device+0x223/0x350 [ 30.277168][ T156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 30.282290][ T5] __device_attach_driver+0x1d1/0x290 [ 30.287644][ T156] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 30.292928][ T5] ? driver_allows_async_probing+0x160/0x160 [ 30.298020][ T156] ? _raw_spin_unlock_irq+0x1f/0x30 [ 30.303631][ T5] bus_for_each_drv+0x162/0x1e0 [ 30.308980][ T156] process_one_work+0x965/0x1630 [ 30.314312][ T5] ? bus_rescan_devices+0x20/0x20 [ 30.320273][ T156] ? lock_release+0x720/0x720 [ 30.325487][ T5] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 30.330352][ T156] ? pwq_dec_nr_in_flight+0x310/0x310 [ 30.335322][ T5] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 30.340325][ T156] ? rwlock_bug.part.0+0x90/0x90 [ 30.345028][ T5] __device_attach+0x21a/0x390 [ 30.350810][ T156] worker_thread+0x96/0xe20 [ 30.356464][ T5] ? device_bind_driver+0xd0/0xd0 [ 30.361732][ T156] ? process_one_work+0x1630/0x1630 [ 30.366651][ T5] bus_probe_device+0x1e4/0x290 [ 30.371602][ T156] kthread+0x326/0x430 [ 30.376086][ T5] device_add+0x1367/0x1c20 [ 30.381223][ T156] ? kthread_create_on_node+0xf0/0xf0 [ 30.386479][ T5] ? device_link_remove+0x110/0x110 [ 30.391411][ T156] ret_from_fork+0x24/0x30 [ 30.395598][ T5] usb_new_device.cold+0x552/0xf6e [ 30.420409][ T5] ? hub_disconnect+0x4a0/0x4a0 [ 30.424809][ T156] hso 2-1:0.0: Failed to find BULK IN ep [ 30.425422][ T5] ? mark_held_locks+0x9f/0xe0 [ 30.425434][ T5] ? _raw_spin_unlock_irq+0x1f/0x30 [ 30.425451][ T5] hub_event+0x226d/0x43c0 [ 30.445706][ T5] ? hub_port_debounce+0x350/0x350 [ 30.450916][ T5] ? umh_clean_and_save_pid+0x1/0xd0 [ 30.456401][ T5] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 30.461972][ T5] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 30.467576][ T5] ? _raw_spin_unlock_irq+0x1f/0x30 [ 30.473255][ T5] process_one_work+0x965/0x1630 [ 30.478556][ T5] ? __wake_up_common_lock+0xde/0x130 [ 30.484338][ T5] ? pwq_dec_nr_in_flight+0x310/0x310 [ 30.489979][ T5] ? rwlock_bug.part.0+0x90/0x90 [ 30.495694][ T5] ? del_timer_sync+0x115/0x130 [ 30.500535][ T5] worker_thread+0x96/0xe20 [ 30.505062][ T5] ? process_one_work+0x1630/0x1630 [ 30.510362][ T5] kthread+0x326/0x430 [ 30.514429][ T5] ? kthread_create_on_node+0xf0/0xf0 [ 30.519914][ T5] ret_from_fork+0x24/0x30 [ 30.524402][ T5] Modules linked in: [ 30.528378][ T5] ---[ end trace 076965a4c739303a ]--- [ 30.528405][ T156] general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#2] SMP KASAN [ 30.533990][ T5] RIP: 0010:cdev_del+0x22/0x90 [ 30.545233][ T156] KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067] [ 30.545246][ T156] CPU: 1 PID: 156 Comm: kworker/1:3 Tainted: G D 5.7.0-rc1-syzkaller #0 [ 30.545252][ T156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.545273][ T156] Workqueue: usb_hub_wq hub_event [ 30.550026][ T5] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 a3 dd d1 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 [ 30.558731][ T156] RIP: 0010:cdev_del+0x22/0x90 [ 30.558741][ T156] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 a3 dd d1 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 [ 30.558747][ T156] RSP: 0018:ffff8881cf657190 EFLAGS: 00010207 [ 30.568474][ T5] RSP: 0018:ffff8881da1d7190 EFLAGS: 00010207 [ 30.578626][ T156] RAX: dffffc0000000000 RBX: ffff8881d5250100 RCX: ffffffff821d817e [ 30.578632][ T156] RDX: 000000000000000c RSI: ffffffff816e5d0d RDI: 0000000000000064 [ 30.578638][ T156] RBP: 0000000000000000 R08: ffff8881cf648000 R09: ffffed103b45de2a [ 30.578645][ T156] R10: ffff8881da2ef14b R11: ffffed103b45de29 R12: 0000000000000000 [ 30.578650][ T156] R13: ffff8881d531d000 R14: ffff8881cd29d000 R15: ffff8881c3b0a070 [ 30.578665][ T156] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 30.583879][ T5] RAX: dffffc0000000000 RBX: ffff8881d5250100 RCX: ffffffff821d817e [ 30.603728][ T156] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.603735][ T156] CR2: 000055a1fa7df41f CR3: 00000001cfff5000 CR4: 00000000001406e0 [ 30.603740][ T156] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.603745][ T156] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.603750][ T156] Call Trace: [ 30.603769][ T156] tty_unregister_device+0x10d/0x1a0 [ 30.603786][ T156] hso_probe.cold+0x6e/0x15a [ 30.608653][ T5] RDX: 000000000000000c RSI: ffffffff816e5d0d RDI: 0000000000000064 [ 30.628290][ T156] usb_probe_interface+0x310/0x800 [ 30.628302][ T156] ? usb_probe_device+0x230/0x230 [ 30.628313][ T156] really_probe+0x290/0xac0 [ 30.628323][ T156] driver_probe_device+0x223/0x350 [ 30.628341][ T156] __device_attach_driver+0x1d1/0x290 [ 30.634416][ T5] RBP: 0000000000000000 R08: ffff8881da19e300 R09: fffffbfff126c8d6 [ 30.640546][ T156] ? driver_allows_async_probing+0x160/0x160 [ 30.648752][ T5] R10: ffffffff893646af R11: fffffbfff126c8d5 R12: 0000000000000000 [ 30.656907][ T156] bus_for_each_drv+0x162/0x1e0 [ 30.656920][ T156] ? bus_rescan_devices+0x20/0x20 [ 30.656938][ T156] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 30.664995][ T5] R13: ffff8881d531d000 R14: ffff8881cce39000 R15: ffff8881cd390070 [ 30.673327][ T156] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 30.681598][ T5] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 30.690532][ T156] __device_attach+0x21a/0x390 [ 30.690547][ T156] ? device_bind_driver+0xd0/0xd0 [ 30.690564][ T156] bus_probe_device+0x1e4/0x290 [ 30.698696][ T5] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.705249][ T156] device_add+0x1367/0x1c20 [ 30.705260][ T156] ? wait_for_completion+0x280/0x280 [ 30.705275][ T156] ? device_link_remove+0x110/0x110 [ 30.713443][ T5] CR2: 000000000043f8b0 CR3: 00000001c90c8000 CR4: 00000000001406f0 [ 30.721410][ T156] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 30.721423][ T156] usb_set_configuration+0xed4/0x1850 [ 30.721440][ T156] usb_generic_driver_probe+0x9d/0xe0 [ 30.729684][ T5] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.733067][ T156] usb_probe_device+0xd9/0x230 [ 30.739215][ T5] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.743769][ T156] ? usb_suspend+0x600/0x600 [ 30.743788][ T156] really_probe+0x290/0xac0 [ 30.751753][ T5] Kernel panic - not syncing: Fatal exception [ 30.756882][ T156] driver_probe_device+0x223/0x350 [ 30.941394][ T156] __device_attach_driver+0x1d1/0x290 [ 30.946871][ T156] ? driver_allows_async_probing+0x160/0x160 [ 30.952952][ T156] bus_for_each_drv+0x162/0x1e0 [ 30.957832][ T156] ? bus_rescan_devices+0x20/0x20 [ 30.962846][ T156] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 30.968649][ T156] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 30.973962][ T156] __device_attach+0x21a/0x390 [ 30.979029][ T156] ? device_bind_driver+0xd0/0xd0 [ 30.984041][ T156] bus_probe_device+0x1e4/0x290 [ 30.988877][ T156] device_add+0x1367/0x1c20 [ 30.993439][ T156] ? device_link_remove+0x110/0x110 [ 30.999340][ T156] usb_new_device.cold+0x552/0xf6e [ 31.004631][ T156] ? hub_disconnect+0x4a0/0x4a0 [ 31.009507][ T156] ? mark_held_locks+0x9f/0xe0 [ 31.014257][ T156] ? _raw_spin_unlock_irq+0x1f/0x30 [ 31.019890][ T156] hub_event+0x226d/0x43c0 [ 31.024598][ T156] ? hub_port_debounce+0x350/0x350 [ 31.029699][ T156] ? umh_clean_and_save_pid+0x1/0xd0 [ 31.035287][ T156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 31.040872][ T156] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 31.046161][ T156] ? _raw_spin_unlock_irq+0x1f/0x30 [ 31.051349][ T156] process_one_work+0x965/0x1630 [ 31.056411][ T156] ? lock_release+0x720/0x720 [ 31.061171][ T156] ? pwq_dec_nr_in_flight+0x310/0x310 [ 31.066809][ T156] ? rwlock_bug.part.0+0x90/0x90 [ 31.072122][ T156] worker_thread+0x96/0xe20 [ 31.076708][ T156] ? process_one_work+0x1630/0x1630 [ 31.081996][ T156] kthread+0x326/0x430 [ 31.086179][ T156] ? kthread_create_on_node+0xf0/0xf0 [ 31.091885][ T156] ret_from_fork+0x24/0x30 [ 31.096298][ T156] Modules linked in: [ 31.101783][ T5] Kernel Offset: disabled [ 31.106267][ T5] Rebooting in 86400 seconds..