[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 15.993997][ C1] random: crng init done [ 15.998530][ C1] random: 7 urandom warning(s) missed due to ratelimiting Warning: Permanently added '10.128.0.184' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 84.310235][ T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 84.318061][ T17] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 84.325810][ T380] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 84.333672][ T22] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 84.340195][ T95] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 84.341238][ T381] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 84.430606][ T95] usb 5-1: Using ep0 maxpacket: 32 [ 84.440633][ T17] usb 4-1: Using ep0 maxpacket: 32 [ 84.445866][ T83] usb 1-1: Using ep0 maxpacket: 32 [ 84.451167][ T22] usb 6-1: Using ep0 maxpacket: 32 [ 84.456350][ T380] usb 3-1: Using ep0 maxpacket: 32 [ 84.461667][ T381] usb 2-1: Using ep0 maxpacket: 32 [ 84.550340][ T95] usb 5-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 84.559628][ T95] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 84.570379][ T17] usb 4-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 84.573406][ T95] usb 5-1: config 0 descriptor?? [ 84.579523][ T17] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 84.592731][ T22] usb 6-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 84.601851][ T22] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 84.610484][ T380] usb 3-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 84.619710][ T380] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 84.628011][ T83] usb 1-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 84.637229][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 84.645487][ T381] usb 2-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 84.654611][ T381] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 84.664124][ T17] usb 4-1: config 0 descriptor?? [ 84.672470][ T381] usb 2-1: config 0 descriptor?? [ 84.678399][ T83] usb 1-1: config 0 descriptor?? [ 84.685190][ T380] usb 3-1: config 0 descriptor?? [ 84.698176][ T22] usb 6-1: config 0 descriptor?? [ 84.841531][ T95] hso 5-1:0.0: Failed to find BULK IN ep [ 84.921157][ T17] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 84.928632][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.7.0-rc1-syzkaller #0 [ 84.936802][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.946852][ T17] Workqueue: usb_hub_wq hub_event [ 84.951878][ T17] Call Trace: [ 84.955523][ T17] dump_stack+0xef/0x16e [ 84.959761][ T17] sysfs_warn_dup.cold+0x1c/0x2d [ 84.964789][ T17] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 84.970841][ T17] sysfs_create_link+0x61/0xc0 [ 84.976116][ T17] device_add+0x74d/0x1c20 [ 84.980514][ T17] ? lockdep_init_map_waits+0x26a/0x7c0 [ 84.986041][ T17] ? device_link_remove+0x110/0x110 [ 84.991220][ T17] ? __init_waitqueue_head+0x97/0x110 [ 84.996580][ T17] ? pm_runtime_init+0x2cf/0x3b0 [ 85.001520][ T17] tty_register_device_attr+0x341/0x6f0 [ 85.007053][ T17] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 85.012581][ T17] ? lock_downgrade+0x720/0x720 [ 85.017453][ T17] ? mark_held_locks+0x9f/0xe0 [ 85.022221][ T17] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 85.028067][ T17] ? tty_port_register_device_attr+0xb9/0x110 [ 85.034123][ T17] hso_serial_common_create+0x113/0x710 [ 85.039927][ T17] ? kasan_unpoison_shadow+0x30/0x40 [ 85.045194][ T17] hso_probe+0xc93/0x1b7d [ 85.049508][ T17] usb_probe_interface+0x310/0x800 [ 85.054617][ T17] ? usb_probe_device+0x230/0x230 [ 85.059622][ T17] really_probe+0x290/0xac0 [ 85.064118][ T17] driver_probe_device+0x223/0x350 [ 85.069228][ T17] __device_attach_driver+0x1d1/0x290 [ 85.074590][ T17] ? driver_allows_async_probing+0x160/0x160 [ 85.080551][ T17] bus_for_each_drv+0x162/0x1e0 [ 85.085380][ T17] ? bus_rescan_devices+0x20/0x20 [ 85.090394][ T17] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 85.096196][ T17] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 85.101474][ T17] __device_attach+0x21a/0x390 [ 85.106252][ T17] ? device_bind_driver+0xd0/0xd0 [ 85.111258][ T17] bus_probe_device+0x1e4/0x290 [ 85.116099][ T17] device_add+0x1367/0x1c20 executing program executing program [ 85.120605][ T17] ? wait_for_completion+0x280/0x280 [ 85.125894][ T17] ? device_link_remove+0x110/0x110 [ 85.131103][ T17] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 85.136916][ T17] usb_set_configuration+0xed4/0x1850 [ 85.142299][ T17] usb_generic_driver_probe+0x9d/0xe0 [ 85.147679][ T17] usb_probe_device+0xd9/0x230 [ 85.152439][ T17] ? usb_suspend+0x600/0x600 [ 85.157008][ T17] really_probe+0x290/0xac0 [ 85.161928][ T17] driver_probe_device+0x223/0x350 [ 85.167034][ T17] __device_attach_driver+0x1d1/0x290 [ 85.172390][ T17] ? driver_allows_async_probing+0x160/0x160 [ 85.178352][ T17] bus_for_each_drv+0x162/0x1e0 [ 85.183209][ T17] ? bus_rescan_devices+0x20/0x20 [ 85.188312][ T17] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 85.194112][ T17] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 85.199410][ T17] __device_attach+0x21a/0x390 [ 85.204256][ T17] ? device_bind_driver+0xd0/0xd0 [ 85.209273][ T17] bus_probe_device+0x1e4/0x290 [ 85.214115][ T17] device_add+0x1367/0x1c20 [ 85.218598][ T17] ? device_link_remove+0x110/0x110 [ 85.223776][ T17] usb_new_device.cold+0x552/0xf6e [ 85.228883][ T17] ? hub_disconnect+0x4a0/0x4a0 [ 85.233720][ T17] ? mark_held_locks+0x9f/0xe0 [ 85.238463][ T17] ? _raw_spin_unlock_irq+0x1f/0x30 [ 85.243650][ T17] hub_event+0x226d/0x43c0 [ 85.248061][ T17] ? hub_port_debounce+0x350/0x350 [ 85.253154][ T17] ? umh_clean_and_save_pid+0x1/0xd0 [ 85.258426][ T17] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 85.263949][ T17] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 85.269240][ T17] ? _raw_spin_unlock_irq+0x1f/0x30 [ 85.274484][ T17] process_one_work+0x965/0x1630 [ 85.279414][ T17] ? lock_release+0x720/0x720 [ 85.284072][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 85.289435][ T17] ? rwlock_bug.part.0+0x90/0x90 [ 85.294371][ T17] worker_thread+0x96/0xe20 [ 85.298887][ T17] ? process_one_work+0x1630/0x1630 [ 85.304085][ T17] kthread+0x326/0x430 [ 85.308144][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 85.313517][ T17] ret_from_fork+0x24/0x30 executing program [ 85.319581][ T380] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 85.327176][ T380] CPU: 1 PID: 380 Comm: kworker/1:3 Not tainted 5.7.0-rc1-syzkaller #0 [ 85.335420][ T380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.345490][ T380] Workqueue: usb_hub_wq hub_event [ 85.350549][ T380] Call Trace: [ 85.353857][ T380] dump_stack+0xef/0x16e [ 85.358104][ T380] sysfs_warn_dup.cold+0x1c/0x2d [ 85.363045][ T380] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 85.369094][ T380] sysfs_create_link+0x61/0xc0 [ 85.373848][ T380] device_add+0x74d/0x1c20 [ 85.378260][ T380] ? lockdep_init_map_waits+0x26a/0x7c0 [ 85.383787][ T380] ? device_link_remove+0x110/0x110 [ 85.388996][ T380] ? __init_waitqueue_head+0x97/0x110 [ 85.394383][ T380] ? pm_runtime_init+0x2cf/0x3b0 [ 85.399324][ T380] tty_register_device_attr+0x341/0x6f0 [ 85.404862][ T380] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 85.410486][ T380] ? lock_downgrade+0x720/0x720 [ 85.415459][ T380] ? mark_held_locks+0x9f/0xe0 [ 85.420374][ T380] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 85.426375][ T380] ? tty_port_register_device_attr+0xb9/0x110 [ 85.432436][ T380] hso_serial_common_create+0x113/0x710 [ 85.438405][ T380] ? kasan_unpoison_shadow+0x30/0x40 [ 85.443683][ T380] hso_probe+0xc93/0x1b7d [ 85.447996][ T380] usb_probe_interface+0x310/0x800 [ 85.453088][ T380] ? usb_probe_device+0x230/0x230 [ 85.458265][ T380] really_probe+0x290/0xac0 [ 85.462747][ T380] driver_probe_device+0x223/0x350 [ 85.467835][ T380] __device_attach_driver+0x1d1/0x290 [ 85.473189][ T380] ? driver_allows_async_probing+0x160/0x160 [ 85.479427][ T380] bus_for_each_drv+0x162/0x1e0 [ 85.484270][ T380] ? bus_rescan_devices+0x20/0x20 [ 85.489275][ T380] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 85.495075][ T380] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 85.500359][ T380] __device_attach+0x21a/0x390 [ 85.505125][ T380] ? device_bind_driver+0xd0/0xd0 [ 85.510139][ T380] bus_probe_device+0x1e4/0x290 [ 85.514988][ T380] device_add+0x1367/0x1c20 executing program executing program executing program [ 85.519499][ T380] ? wait_for_completion+0x280/0x280 [ 85.525323][ T380] ? device_link_remove+0x110/0x110 [ 85.530533][ T380] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 85.536378][ T380] usb_set_configuration+0xed4/0x1850 [ 85.541784][ T380] usb_generic_driver_probe+0x9d/0xe0 [ 85.547249][ T380] usb_probe_device+0xd9/0x230 [ 85.552634][ T380] ? usb_suspend+0x600/0x600 [ 85.557581][ T380] really_probe+0x290/0xac0 [ 85.562097][ T380] driver_probe_device+0x223/0x350 [ 85.567241][ T380] __device_attach_driver+0x1d1/0x290 [ 85.572956][ T380] ? driver_allows_async_probing+0x160/0x160 [ 85.579025][ T380] bus_for_each_drv+0x162/0x1e0 [ 85.583945][ T380] ? bus_rescan_devices+0x20/0x20 [ 85.589407][ T380] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 85.595498][ T380] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 85.600767][ T380] __device_attach+0x21a/0x390 [ 85.605546][ T380] ? device_bind_driver+0xd0/0xd0 [ 85.610610][ T380] bus_probe_device+0x1e4/0x290 [ 85.615508][ T380] device_add+0x1367/0x1c20 [ 85.620013][ T380] ? device_link_remove+0x110/0x110 [ 85.625210][ T380] usb_new_device.cold+0x552/0xf6e [ 85.630340][ T380] ? hub_disconnect+0x4a0/0x4a0 [ 85.635173][ T380] ? mark_held_locks+0x9f/0xe0 [ 85.639929][ T380] ? _raw_spin_unlock_irq+0x1f/0x30 [ 85.645121][ T380] hub_event+0x226d/0x43c0 [ 85.649523][ T380] ? hub_port_debounce+0x350/0x350 [ 85.654628][ T380] ? umh_clean_and_save_pid+0x1/0xd0 [ 85.659947][ T380] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 85.665745][ T380] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 85.671016][ T380] ? _raw_spin_unlock_irq+0x1f/0x30 [ 85.676201][ T380] process_one_work+0x965/0x1630 [ 85.681141][ T380] ? __wake_up_common_lock+0xde/0x130 [ 85.686521][ T380] ? pwq_dec_nr_in_flight+0x310/0x310 [ 85.691881][ T380] ? rwlock_bug.part.0+0x90/0x90 [ 85.696877][ T380] ? del_timer_sync+0x115/0x130 [ 85.701838][ T380] worker_thread+0x96/0xe20 [ 85.706359][ T380] ? process_one_work+0x1630/0x1630 [ 85.711580][ T380] kthread+0x326/0x430 [ 85.715645][ T380] ? kthread_create_on_node+0xf0/0xf0 [ 85.721016][ T380] ret_from_fork+0x24/0x30 [ 85.725877][ T83] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 85.733590][ T83] CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.7.0-rc1-syzkaller #0 [ 85.741737][ T83] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.751825][ T83] Workqueue: usb_hub_wq hub_event [ 85.756844][ T83] Call Trace: [ 85.760227][ T83] dump_stack+0xef/0x16e [ 85.764610][ T83] sysfs_warn_dup.cold+0x1c/0x2d [ 85.769681][ T83] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 85.775736][ T83] sysfs_create_link+0x61/0xc0 [ 85.780485][ T83] device_add+0x74d/0x1c20 [ 85.784886][ T83] ? lockdep_init_map_waits+0x26a/0x7c0 [ 85.790434][ T83] ? device_link_remove+0x110/0x110 [ 85.795618][ T83] ? __init_waitqueue_head+0x97/0x110 [ 85.800991][ T83] ? pm_runtime_init+0x2cf/0x3b0 [ 85.805912][ T83] tty_register_device_attr+0x341/0x6f0 [ 85.811461][ T83] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 85.816995][ T83] ? lock_downgrade+0x720/0x720 [ 85.821833][ T83] ? mark_held_locks+0x9f/0xe0 [ 85.826586][ T83] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 85.832395][ T83] ? tty_port_register_device_attr+0xb9/0x110 [ 85.838457][ T83] hso_serial_common_create+0x113/0x710 [ 85.844224][ T83] ? kasan_unpoison_shadow+0x30/0x40 [ 85.849518][ T83] hso_probe+0xc93/0x1b7d [ 85.853938][ T83] usb_probe_interface+0x310/0x800 [ 85.859283][ T83] ? usb_probe_device+0x230/0x230 [ 85.864908][ T83] really_probe+0x290/0xac0 [ 85.869426][ T83] driver_probe_device+0x223/0x350 [ 85.874522][ T83] __device_attach_driver+0x1d1/0x290 [ 85.879892][ T83] ? driver_allows_async_probing+0x160/0x160 [ 85.885861][ T83] bus_for_each_drv+0x162/0x1e0 [ 85.890732][ T83] ? bus_rescan_devices+0x20/0x20 [ 85.895771][ T83] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 85.901569][ T83] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 85.906855][ T83] __device_attach+0x21a/0x390 [ 85.911629][ T83] ? device_bind_driver+0xd0/0xd0 [ 85.916657][ T83] bus_probe_device+0x1e4/0x290 [ 85.921489][ T83] device_add+0x1367/0x1c20 [ 85.925981][ T83] ? wait_for_completion+0x280/0x280 [ 85.931325][ T83] ? device_link_remove+0x110/0x110 [ 85.936515][ T83] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 85.942309][ T83] usb_set_configuration+0xed4/0x1850 [ 85.947671][ T83] usb_generic_driver_probe+0x9d/0xe0 [ 85.953032][ T83] usb_probe_device+0xd9/0x230 [ 85.957886][ T83] ? usb_suspend+0x600/0x600 [ 85.962484][ T83] really_probe+0x290/0xac0 [ 85.966971][ T83] driver_probe_device+0x223/0x350 [ 85.972199][ T83] __device_attach_driver+0x1d1/0x290 [ 85.977583][ T83] ? driver_allows_async_probing+0x160/0x160 [ 85.983584][ T83] bus_for_each_drv+0x162/0x1e0 [ 85.988449][ T83] ? bus_rescan_devices+0x20/0x20 [ 85.993458][ T83] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 85.999248][ T83] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 86.004518][ T83] __device_attach+0x21a/0x390 [ 86.009525][ T83] ? device_bind_driver+0xd0/0xd0 [ 86.014534][ T83] bus_probe_device+0x1e4/0x290 [ 86.019367][ T83] device_add+0x1367/0x1c20 [ 86.023851][ T83] ? device_link_remove+0x110/0x110 [ 86.029052][ T83] usb_new_device.cold+0x552/0xf6e [ 86.034265][ T83] ? hub_disconnect+0x4a0/0x4a0 [ 86.039106][ T83] ? mark_held_locks+0x9f/0xe0 [ 86.043854][ T83] ? _raw_spin_unlock_irq+0x1f/0x30 [ 86.049045][ T83] hub_event+0x226d/0x43c0 [ 86.053465][ T83] ? hub_port_debounce+0x350/0x350 [ 86.058690][ T83] ? umh_clean_and_save_pid+0x1/0xd0 [ 86.064055][ T83] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 86.069611][ T83] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 86.076553][ T83] ? _raw_spin_unlock_irq+0x1f/0x30 [ 86.081760][ T83] process_one_work+0x965/0x1630 [ 86.086708][ T83] ? lock_release+0x720/0x720 [ 86.091381][ T83] ? pwq_dec_nr_in_flight+0x310/0x310 [ 86.096745][ T83] ? rwlock_bug.part.0+0x90/0x90 [ 86.101669][ T83] worker_thread+0x96/0xe20 [ 86.106189][ T83] ? process_one_work+0x1630/0x1630 [ 86.111379][ T83] kthread+0x326/0x430 [ 86.115433][ T83] ? kthread_create_on_node+0xf0/0xf0 [ 86.120876][ T83] ret_from_fork+0x24/0x30 [ 86.126535][ T22] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 86.134078][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.7.0-rc1-syzkaller #0 [ 86.142237][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.152303][ T22] Workqueue: usb_hub_wq hub_event [ 86.157312][ T22] Call Trace: [ 86.160591][ T22] dump_stack+0xef/0x16e [ 86.164818][ T22] sysfs_warn_dup.cold+0x1c/0x2d [ 86.169753][ T22] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 86.175814][ T22] sysfs_create_link+0x61/0xc0 [ 86.180574][ T22] device_add+0x74d/0x1c20 [ 86.184998][ T22] ? lockdep_init_map_waits+0x26a/0x7c0 [ 86.190559][ T22] ? device_link_remove+0x110/0x110 [ 86.195754][ T22] ? __init_waitqueue_head+0x97/0x110 [ 86.201131][ T22] ? pm_runtime_init+0x2cf/0x3b0 [ 86.206079][ T22] tty_register_device_attr+0x341/0x6f0 [ 86.211623][ T22] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 86.217165][ T22] ? lock_downgrade+0x720/0x720 [ 86.222004][ T22] ? mark_held_locks+0x9f/0xe0 [ 86.226781][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 86.232713][ T22] ? tty_port_register_device_attr+0xb9/0x110 [ 86.238880][ T22] hso_serial_common_create+0x113/0x710 [ 86.244420][ T22] ? kasan_unpoison_shadow+0x30/0x40 [ 86.249845][ T22] hso_probe+0xc93/0x1b7d [ 86.254176][ T22] usb_probe_interface+0x310/0x800 [ 86.259384][ T22] ? usb_probe_device+0x230/0x230 [ 86.264416][ T22] really_probe+0x290/0xac0 [ 86.268907][ T22] driver_probe_device+0x223/0x350 [ 86.274045][ T22] __device_attach_driver+0x1d1/0x290 [ 86.279404][ T22] ? driver_allows_async_probing+0x160/0x160 [ 86.285410][ T22] bus_for_each_drv+0x162/0x1e0 [ 86.290256][ T22] ? bus_rescan_devices+0x20/0x20 [ 86.295270][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 86.301060][ T22] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 86.306329][ T22] __device_attach+0x21a/0x390 [ 86.311080][ T22] ? device_bind_driver+0xd0/0xd0 [ 86.316211][ T22] bus_probe_device+0x1e4/0x290 [ 86.321060][ T22] device_add+0x1367/0x1c20 [ 86.325560][ T22] ? wait_for_completion+0x280/0x280 [ 86.330844][ T22] ? device_link_remove+0x110/0x110 [ 86.336055][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 86.341868][ T22] usb_set_configuration+0xed4/0x1850 [ 86.347243][ T22] usb_generic_driver_probe+0x9d/0xe0 [ 86.352607][ T22] usb_probe_device+0xd9/0x230 [ 86.357366][ T22] ? usb_suspend+0x600/0x600 [ 86.361956][ T22] really_probe+0x290/0xac0 [ 86.366449][ T22] driver_probe_device+0x223/0x350 [ 86.371613][ T22] __device_attach_driver+0x1d1/0x290 [ 86.376998][ T22] ? driver_allows_async_probing+0x160/0x160 [ 86.382966][ T22] bus_for_each_drv+0x162/0x1e0 [ 86.389061][ T22] ? bus_rescan_devices+0x20/0x20 [ 86.394083][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 86.399896][ T22] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 86.405188][ T22] __device_attach+0x21a/0x390 [ 86.410103][ T22] ? device_bind_driver+0xd0/0xd0 [ 86.415295][ T22] bus_probe_device+0x1e4/0x290 [ 86.420154][ T22] device_add+0x1367/0x1c20 [ 86.424662][ T22] ? device_link_remove+0x110/0x110 [ 86.429859][ T22] usb_new_device.cold+0x552/0xf6e [ 86.434982][ T22] ? hub_disconnect+0x4a0/0x4a0 [ 86.439915][ T22] ? mark_held_locks+0x9f/0xe0 [ 86.444671][ T22] ? _raw_spin_unlock_irq+0x1f/0x30 [ 86.449859][ T22] hub_event+0x226d/0x43c0 [ 86.455154][ T22] ? hub_port_debounce+0x350/0x350 [ 86.460775][ T22] ? umh_clean_and_save_pid+0x1/0xd0 [ 86.466151][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 86.471726][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 86.477064][ T22] ? _raw_spin_unlock_irq+0x1f/0x30 [ 86.482253][ T22] process_one_work+0x965/0x1630 [ 86.487191][ T22] ? __wake_up_common_lock+0xde/0x130 [ 86.492561][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 86.498102][ T22] ? rwlock_bug.part.0+0x90/0x90 [ 86.503045][ T22] ? del_timer_sync+0x115/0x130 [ 86.507945][ T22] worker_thread+0x96/0xe20 [ 86.512436][ T22] ? process_one_work+0x1630/0x1630 [ 86.517641][ T22] kthread+0x326/0x430 [ 86.521711][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 86.527217][ T22] ret_from_fork+0x24/0x30 [ 86.532354][ T381] hso 2-1:0.0: Failed to find BULK IN ep [ 86.542341][ T381] usb 2-1: USB disconnect, device number 2 [ 86.550162][ T17] hso 4-1:0.0: Failed to find BULK IN ep [ 86.555953][ T17] general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#1] SMP KASAN [ 86.567141][ T17] KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067] [ 86.575559][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.7.0-rc1-syzkaller #0 [ 86.583823][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.594180][ T17] Workqueue: usb_hub_wq hub_event [ 86.599191][ T17] RIP: 0010:cdev_del+0x22/0x90 [ 86.603931][ T17] 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 [ 86.623881][ T17] RSP: 0018:ffff8881da25f190 EFLAGS: 00010207 [ 86.629930][ T17] RAX: dffffc0000000000 RBX: ffff8881d528f000 RCX: ffffffff821d817e [ 86.637881][ T17] RDX: 000000000000000c RSI: ffffffff816e5d0d RDI: 0000000000000064 [ 86.645836][ T17] RBP: 0000000000000000 R08: ffff8881da243180 R09: fffffbfff126c8d6 [ 86.654057][ T17] R10: ffffffff893646af R11: fffffbfff126c8d5 R12: 0000000000000000 [ 86.662919][ T17] R13: ffff8881d532b000 R14: ffff8881ccecf000 R15: ffff8881ccd17070 [ 86.670885][ T17] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 86.680326][ T17] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.687132][ T17] CR2: 00000000004c43a8 CR3: 0000000007024000 CR4: 00000000001406e0 [ 86.695104][ T17] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.703066][ T17] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 86.711017][ T17] Call Trace: [ 86.714293][ T17] tty_unregister_device+0x10d/0x1a0 [ 86.719562][ T17] hso_probe.cold+0x6e/0x15a [ 86.724141][ T17] usb_probe_interface+0x310/0x800 [ 86.729234][ T17] ? usb_probe_device+0x230/0x230 [ 86.734240][ T17] really_probe+0x290/0xac0 [ 86.738740][ T17] driver_probe_device+0x223/0x350 [ 86.743845][ T17] __device_attach_driver+0x1d1/0x290 [ 86.749198][ T17] ? driver_allows_async_probing+0x160/0x160 [ 86.755314][ T17] bus_for_each_drv+0x162/0x1e0 [ 86.760525][ T17] ? bus_rescan_devices+0x20/0x20 [ 86.765567][ T17] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 86.771676][ T17] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 86.776952][ T17] __device_attach+0x21a/0x390 [ 86.781703][ T17] ? device_bind_driver+0xd0/0xd0 [ 86.786879][ T17] bus_probe_device+0x1e4/0x290 [ 86.791718][ T17] device_add+0x1367/0x1c20 [ 86.796202][ T17] ? wait_for_completion+0x280/0x280 [ 86.801468][ T17] ? device_link_remove+0x110/0x110 [ 86.806660][ T17] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 86.812565][ T17] usb_set_configuration+0xed4/0x1850 [ 86.817934][ T17] usb_generic_driver_probe+0x9d/0xe0 [ 86.823582][ T17] usb_probe_device+0xd9/0x230 [ 86.828327][ T17] ? usb_suspend+0x600/0x600 [ 86.832997][ T17] really_probe+0x290/0xac0 [ 86.837502][ T17] driver_probe_device+0x223/0x350 [ 86.842601][ T17] __device_attach_driver+0x1d1/0x290 [ 86.847967][ T17] ? driver_allows_async_probing+0x160/0x160 [ 86.853927][ T17] bus_for_each_drv+0x162/0x1e0 [ 86.858783][ T17] ? bus_rescan_devices+0x20/0x20 [ 86.863811][ T17] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 86.869781][ T17] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 86.875066][ T17] __device_attach+0x21a/0x390 [ 86.880073][ T17] ? device_bind_driver+0xd0/0xd0 [ 86.885090][ T17] bus_probe_device+0x1e4/0x290 [ 86.890080][ T17] device_add+0x1367/0x1c20 [ 86.894774][ T17] ? device_link_remove+0x110/0x110 [ 86.902839][ T17] usb_new_device.cold+0x552/0xf6e [ 86.908235][ T17] ? hub_disconnect+0x4a0/0x4a0 [ 86.913175][ T17] ? mark_held_locks+0x9f/0xe0 [ 86.917930][ T17] ? _raw_spin_unlock_irq+0x1f/0x30 [ 86.923130][ T17] hub_event+0x226d/0x43c0 [ 86.927547][ T17] ? hub_port_debounce+0x350/0x350 [ 86.932637][ T17] ? umh_clean_and_save_pid+0x1/0xd0 [ 86.938031][ T17] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 86.943658][ T17] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 86.948954][ T17] ? _raw_spin_unlock_irq+0x1f/0x30 [ 86.954135][ T17] process_one_work+0x965/0x1630 [ 86.959068][ T17] ? lock_release+0x720/0x720 [ 86.963764][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 86.969282][ T17] ? rwlock_bug.part.0+0x90/0x90 [ 86.974243][ T17] worker_thread+0x96/0xe20 [ 86.978777][ T17] ? process_one_work+0x1630/0x1630 [ 86.984148][ T17] kthread+0x326/0x430 [ 86.988253][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 86.994126][ T17] ret_from_fork+0x24/0x30 [ 86.998518][ T17] Modules linked in: [ 87.002511][ T17] ---[ end trace bb46834cda0978cb ]--- [ 87.007982][ T17] RIP: 0010:cdev_del+0x22/0x90 [ 87.012966][ T17] 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 [ 87.032833][ T17] RSP: 0018:ffff8881da25f190 EFLAGS: 00010207 [ 87.039003][ T17] RAX: dffffc0000000000 RBX: ffff8881d528f000 RCX: ffffffff821d817e [ 87.047271][ T17] RDX: 000000000000000c RSI: ffffffff816e5d0d RDI: 0000000000000064 [ 87.056205][ T17] RBP: 0000000000000000 R08: ffff8881da243180 R09: fffffbfff126c8d6 [ 87.067384][ T17] R10: ffffffff893646af R11: fffffbfff126c8d5 R12: 0000000000000000 [ 87.076940][ T17] R13: ffff8881d532b000 R14: ffff8881ccecf000 R15: ffff8881ccd17070 [ 87.093113][ T17] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 87.114276][ T17] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.121662][ T17] CR2: 00000000004c43a8 CR3: 0000000007024000 CR4: 00000000001406e0 [ 87.131753][ T17] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 87.140471][ T17] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 87.148437][ T17] Kernel panic - not syncing: Fatal exception [ 87.155822][ T17] Kernel Offset: disabled [ 87.160137][ T17] Rebooting in 86400 seconds..