Warning: Permanently added '10.128.0.6' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 76.622603][ T12] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 76.622611][ T94] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 76.622972][ T95] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 76.645913][ T1806] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 76.653540][ T1808] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 76.661191][ T5] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 76.712985][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 76.733081][ T12] usb 6-1: Using ep0 maxpacket: 32 [ 76.742655][ T1808] usb 4-1: Using ep0 maxpacket: 32 [ 76.752967][ T1806] usb 2-1: Using ep0 maxpacket: 32 [ 76.758481][ T5] usb 3-1: Using ep0 maxpacket: 32 [ 76.763932][ T95] usb 5-1: Using ep0 maxpacket: 32 [ 76.832772][ T94] usb 1-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 76.842294][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 76.851958][ T94] usb 1-1: config 0 descriptor?? [ 76.856190][ T12] usb 6-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 76.866563][ T12] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 76.874892][ T1808] usb 4-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 76.884566][ T1808] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 76.892681][ T1806] usb 2-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 76.901871][ T1806] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 76.910538][ T5] usb 3-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 76.919661][ T5] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 76.928029][ T95] usb 5-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 76.937296][ T95] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 76.946262][ T12] usb 6-1: config 0 descriptor?? [ 76.952338][ T5] usb 3-1: config 0 descriptor?? [ 76.958560][ T1808] usb 4-1: config 0 descriptor?? [ 76.964748][ T1806] usb 2-1: config 0 descriptor?? [ 76.970078][ T95] usb 5-1: config 0 descriptor?? [ 77.124094][ T94] hso 1-1:0.0: Failed to find BULK IN ep [ 77.203986][ T12] hso 6-1:0.0: Failed to find BULK IN ep [ 77.223347][ T1806] hso 2-1:0.0: Failed to find BULK IN ep [ 77.233281][ T95] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 77.240816][ T95] CPU: 0 PID: 95 Comm: kworker/0:2 Not tainted 5.5.0-rc6-syzkaller #0 [ 77.249074][ T95] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.259140][ T95] Workqueue: usb_hub_wq hub_event [ 77.264164][ T95] Call Trace: [ 77.267451][ T95] dump_stack+0xef/0x16e [ 77.271696][ T95] sysfs_warn_dup.cold+0x1c/0x2d [ 77.276771][ T95] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 77.282859][ T95] sysfs_create_link+0x61/0xc0 [ 77.287631][ T95] device_add+0x756/0x1bf0 [ 77.292066][ T95] ? lockdep_init_map+0x1b0/0x5e0 [ 77.297229][ T95] ? device_link_remove+0x110/0x110 [ 77.302541][ T95] ? __init_waitqueue_head+0x31/0x90 [ 77.307944][ T95] tty_register_device_attr+0x341/0x6f0 [ 77.313671][ T95] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 77.319251][ T95] ? mark_held_locks+0x9f/0xe0 [ 77.324026][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 77.324680][ T94] usb 1-1: USB disconnect, device number 2 [ 77.329859][ T95] ? tty_port_register_device_attr+0xb9/0x110 [ 77.341994][ T95] hso_serial_common_create+0x113/0x710 [ 77.347588][ T95] ? kasan_unpoison_shadow+0x30/0x40 executing program [ 77.353411][ T95] hso_probe+0xc93/0x1b7b [ 77.357766][ T95] usb_probe_interface+0x310/0x800 [ 77.363030][ T95] ? usb_probe_device+0x140/0x140 [ 77.368060][ T95] really_probe+0x290/0xad0 [ 77.372603][ T95] driver_probe_device+0x223/0x350 [ 77.377783][ T95] __device_attach_driver+0x1d1/0x290 [ 77.383311][ T95] ? driver_allows_async_probing+0x160/0x160 [ 77.389417][ T95] bus_for_each_drv+0x162/0x1e0 [ 77.394388][ T95] ? bus_rescan_devices+0x20/0x20 executing program executing program executing program [ 77.399447][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 77.405258][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 77.410529][ T95] __device_attach+0x217/0x390 [ 77.415484][ T95] ? device_bind_driver+0xd0/0xd0 [ 77.420648][ T95] bus_probe_device+0x1e4/0x290 [ 77.425514][ T95] device_add+0x1459/0x1bf0 [ 77.430270][ T95] ? wait_for_completion+0x3c0/0x3c0 [ 77.435582][ T95] ? device_link_remove+0x110/0x110 [ 77.440944][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 77.446776][ T95] usb_set_configuration+0xe47/0x17d0 executing program [ 77.452300][ T95] generic_probe+0x9d/0xd5 [ 77.456736][ T95] usb_probe_device+0xaf/0x140 [ 77.461532][ T95] ? usb_suspend+0x5f0/0x5f0 [ 77.466194][ T95] really_probe+0x290/0xad0 [ 77.471243][ T95] driver_probe_device+0x223/0x350 [ 77.476363][ T95] __device_attach_driver+0x1d1/0x290 [ 77.481829][ T95] ? driver_allows_async_probing+0x160/0x160 [ 77.487803][ T95] bus_for_each_drv+0x162/0x1e0 [ 77.492772][ T95] ? bus_rescan_devices+0x20/0x20 [ 77.497969][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 77.503941][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 77.509302][ T95] __device_attach+0x217/0x390 [ 77.514085][ T95] ? device_bind_driver+0xd0/0xd0 [ 77.521390][ T95] bus_probe_device+0x1e4/0x290 [ 77.526475][ T95] device_add+0x1459/0x1bf0 [ 77.530989][ T95] ? device_link_remove+0x110/0x110 [ 77.536378][ T95] usb_new_device.cold+0x540/0xcd0 [ 77.541503][ T95] hub_event+0x21cb/0x4300 [ 77.545924][ T95] ? hub_port_debounce+0x350/0x350 [ 77.551197][ T95] ? find_held_lock+0x2d/0x110 [ 77.556075][ T95] ? mark_held_locks+0xe0/0xe0 [ 77.560842][ T95] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 77.566411][ T95] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 77.571710][ T95] process_one_work+0x945/0x15c0 [ 77.576670][ T95] ? pwq_dec_nr_in_flight+0x310/0x310 [ 77.582059][ T95] ? do_raw_spin_lock+0x129/0x290 [ 77.587121][ T95] worker_thread+0x96/0xe20 [ 77.591620][ T95] ? process_one_work+0x15c0/0x15c0 [ 77.596827][ T95] kthread+0x318/0x420 executing program [ 77.600901][ T95] ? kthread_create_on_node+0xf0/0xf0 [ 77.606285][ T95] ret_from_fork+0x24/0x30 [ 77.611544][ T1808] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 77.614868][ T78] usb 6-1: USB disconnect, device number 2 [ 77.619095][ T1808] CPU: 0 PID: 1808 Comm: kworker/0:4 Not tainted 5.5.0-rc6-syzkaller #0 [ 77.633649][ T1808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.644525][ T1808] Workqueue: usb_hub_wq hub_event [ 77.649540][ T1808] Call Trace: [ 77.652835][ T1808] dump_stack+0xef/0x16e [ 77.657250][ T1808] sysfs_warn_dup.cold+0x1c/0x2d [ 77.662389][ T1808] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 77.668471][ T1808] sysfs_create_link+0x61/0xc0 [ 77.673256][ T1808] device_add+0x756/0x1bf0 [ 77.677687][ T1808] ? lockdep_init_map+0x1b0/0x5e0 [ 77.682717][ T1808] ? device_link_remove+0x110/0x110 [ 77.688028][ T1808] ? __init_waitqueue_head+0x31/0x90 [ 77.693315][ T1808] tty_register_device_attr+0x341/0x6f0 [ 77.698885][ T1808] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 77.704609][ T1808] ? mark_held_locks+0x9f/0xe0 [ 77.709385][ T1808] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 77.715204][ T1808] ? tty_port_register_device_attr+0xb9/0x110 [ 77.721429][ T1808] hso_serial_common_create+0x113/0x710 [ 77.726988][ T1808] ? kasan_unpoison_shadow+0x30/0x40 [ 77.732428][ T1808] hso_probe+0xc93/0x1b7b [ 77.736781][ T1808] usb_probe_interface+0x310/0x800 [ 77.741999][ T1808] ? usb_probe_device+0x140/0x140 [ 77.747995][ T1808] really_probe+0x290/0xad0 [ 77.752522][ T1808] driver_probe_device+0x223/0x350 [ 77.757895][ T1808] __device_attach_driver+0x1d1/0x290 [ 77.763330][ T1808] ? driver_allows_async_probing+0x160/0x160 [ 77.769310][ T1808] bus_for_each_drv+0x162/0x1e0 [ 77.774463][ T1808] ? bus_rescan_devices+0x20/0x20 [ 77.779685][ T1808] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 77.785598][ T1808] ? lockdep_hardirqs_on+0x382/0x580 [ 77.790988][ T1808] __device_attach+0x217/0x390 [ 77.795805][ T1808] ? device_bind_driver+0xd0/0xd0 [ 77.800854][ T1808] bus_probe_device+0x1e4/0x290 [ 77.805886][ T1808] device_add+0x1459/0x1bf0 [ 77.810391][ T1808] ? wait_for_completion+0x3c0/0x3c0 [ 77.815679][ T1808] ? device_link_remove+0x110/0x110 [ 77.820971][ T1808] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 77.826792][ T1808] usb_set_configuration+0xe47/0x17d0 [ 77.832253][ T1808] generic_probe+0x9d/0xd5 [ 77.836942][ T1808] usb_probe_device+0xaf/0x140 [ 77.842321][ T1808] ? usb_suspend+0x5f0/0x5f0 [ 77.846913][ T1808] really_probe+0x290/0xad0 [ 77.851569][ T1808] driver_probe_device+0x223/0x350 [ 77.856798][ T1808] __device_attach_driver+0x1d1/0x290 [ 77.862210][ T1808] ? driver_allows_async_probing+0x160/0x160 [ 77.868353][ T1808] bus_for_each_drv+0x162/0x1e0 [ 77.873215][ T1808] ? bus_rescan_devices+0x20/0x20 [ 77.878274][ T1808] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 77.884184][ T1808] ? lockdep_hardirqs_on+0x382/0x580 [ 77.889533][ T1808] __device_attach+0x217/0x390 [ 77.894854][ T1808] ? device_bind_driver+0xd0/0xd0 [ 77.899887][ T1808] bus_probe_device+0x1e4/0x290 [ 77.904749][ T1808] device_add+0x1459/0x1bf0 [ 77.909408][ T1808] ? device_link_remove+0x110/0x110 [ 77.914709][ T1808] usb_new_device.cold+0x540/0xcd0 [ 77.919826][ T1808] hub_event+0x21cb/0x4300 [ 77.924302][ T1808] ? hub_port_debounce+0x350/0x350 [ 77.929660][ T1808] ? find_held_lock+0x2d/0x110 [ 77.934522][ T1808] ? mark_held_locks+0xe0/0xe0 [ 77.940024][ T1808] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 77.945583][ T1808] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 77.950876][ T1808] process_one_work+0x945/0x15c0 [ 77.955965][ T1808] ? pwq_dec_nr_in_flight+0x310/0x310 [ 77.961361][ T1808] worker_thread+0x96/0xe20 [ 77.965861][ T1808] ? process_one_work+0x15c0/0x15c0 [ 77.971105][ T1808] kthread+0x318/0x420 [ 77.975182][ T1808] ? kthread_create_on_node+0xf0/0xf0 [ 77.980609][ T1808] ret_from_fork+0x24/0x30 [ 77.985577][ T5] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 77.993245][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.5.0-rc6-syzkaller #0 [ 78.001380][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.011570][ T5] Workqueue: usb_hub_wq hub_event [ 78.016973][ T5] Call Trace: [ 78.020887][ T5] dump_stack+0xef/0x16e [ 78.025282][ T5] sysfs_warn_dup.cold+0x1c/0x2d [ 78.030303][ T5] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 78.036368][ T5] sysfs_create_link+0x61/0xc0 [ 78.041144][ T5] device_add+0x756/0x1bf0 [ 78.045695][ T5] ? lockdep_init_map+0x1b0/0x5e0 [ 78.050758][ T5] ? device_link_remove+0x110/0x110 [ 78.056110][ T5] ? __init_waitqueue_head+0x31/0x90 [ 78.061420][ T5] tty_register_device_attr+0x341/0x6f0 [ 78.067170][ T5] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 78.072734][ T5] ? mark_held_locks+0x9f/0xe0 [ 78.077510][ T5] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 78.083364][ T5] ? tty_port_register_device_attr+0xb9/0x110 [ 78.089435][ T5] hso_serial_common_create+0x113/0x710 [ 78.095222][ T5] ? kasan_unpoison_shadow+0x30/0x40 [ 78.100671][ T5] hso_probe+0xc93/0x1b7b [ 78.105020][ T5] usb_probe_interface+0x310/0x800 [ 78.110140][ T5] ? usb_probe_device+0x140/0x140 [ 78.115170][ T5] really_probe+0x290/0xad0 [ 78.119672][ T5] driver_probe_device+0x223/0x350 [ 78.125275][ T5] __device_attach_driver+0x1d1/0x290 [ 78.130673][ T5] ? driver_allows_async_probing+0x160/0x160 [ 78.136831][ T5] bus_for_each_drv+0x162/0x1e0 [ 78.141709][ T5] ? bus_rescan_devices+0x20/0x20 [ 78.146865][ T5] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 78.152887][ T5] ? lockdep_hardirqs_on+0x382/0x580 [ 78.158331][ T5] __device_attach+0x217/0x390 [ 78.163103][ T5] ? device_bind_driver+0xd0/0xd0 [ 78.168179][ T5] bus_probe_device+0x1e4/0x290 [ 78.173064][ T5] device_add+0x1459/0x1bf0 [ 78.177585][ T5] ? wait_for_completion+0x3c0/0x3c0 [ 78.182983][ T5] ? device_link_remove+0x110/0x110 [ 78.188245][ T5] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 78.194057][ T5] usb_set_configuration+0xe47/0x17d0 [ 78.199431][ T5] generic_probe+0x9d/0xd5 [ 78.203946][ T5] usb_probe_device+0xaf/0x140 [ 78.208861][ T5] ? usb_suspend+0x5f0/0x5f0 [ 78.213500][ T5] really_probe+0x290/0xad0 [ 78.218468][ T5] driver_probe_device+0x223/0x350 [ 78.223587][ T5] __device_attach_driver+0x1d1/0x290 [ 78.228982][ T5] ? driver_allows_async_probing+0x160/0x160 [ 78.235321][ T5] bus_for_each_drv+0x162/0x1e0 [ 78.240185][ T5] ? bus_rescan_devices+0x20/0x20 [ 78.245237][ T5] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 78.251189][ T5] ? lockdep_hardirqs_on+0x382/0x580 [ 78.256661][ T5] __device_attach+0x217/0x390 [ 78.261541][ T5] ? device_bind_driver+0xd0/0xd0 [ 78.267299][ T5] bus_probe_device+0x1e4/0x290 [ 78.272637][ T5] device_add+0x1459/0x1bf0 [ 78.277161][ T5] ? device_link_remove+0x110/0x110 [ 78.282517][ T5] usb_new_device.cold+0x540/0xcd0 [ 78.289123][ T5] hub_event+0x21cb/0x4300 [ 78.293579][ T5] ? hub_port_debounce+0x350/0x350 [ 78.298712][ T5] ? find_held_lock+0x2d/0x110 [ 78.303499][ T5] ? mark_held_locks+0xe0/0xe0 [ 78.308325][ T5] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 78.314107][ T5] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 78.319410][ T5] process_one_work+0x945/0x15c0 [ 78.324497][ T5] ? pwq_dec_nr_in_flight+0x310/0x310 [ 78.329883][ T5] worker_thread+0x96/0xe20 [ 78.334527][ T5] ? process_one_work+0x15c0/0x15c0 [ 78.339874][ T5] kthread+0x318/0x420 [ 78.343955][ T5] ? kthread_create_on_node+0xf0/0xf0 [ 78.349335][ T5] ret_from_fork+0x24/0x30 [ 78.357004][ T1806] usb 2-1: USB disconnect, device number 2 [ 78.365291][ T5] hso 3-1:0.0: Failed to find BULK IN ep [ 78.371291][ T5] kasan: CONFIG_KASAN_INLINE enabled [ 78.376728][ T5] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 78.384999][ T5] general protection fault: 0000 [#1] SMP KASAN [ 78.391260][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.5.0-rc6-syzkaller #0 [ 78.399312][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.409474][ T5] Workqueue: usb_hub_wq hub_event [ 78.414557][ T5] RIP: 0010:cdev_del+0x22/0x90 [ 78.419328][ T5] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 f3 cd 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 [ 78.438934][ T5] RSP: 0018:ffff8881da1df268 EFLAGS: 00010207 [ 78.445096][ T5] RAX: dffffc0000000000 RBX: ffff8881d514c200 RCX: ffffffff8214b4ee [ 78.453098][ T5] RDX: 000000000000000c RSI: ffffffff816c430d RDI: 0000000000000064 [ 78.461427][ T5] RBP: 0000000000000000 R08: ffff8881da196200 R09: fffffbfff1269cae [ 78.470480][ T5] R10: fffffbfff1269cad R11: ffffffff8934e56f R12: 0000000000000000 [ 78.478499][ T5] R13: ffff8881d5263000 R14: ffff8881cd362000 R15: ffff8881cd466070 [ 78.486474][ T5] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 78.495577][ T5] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.502157][ T5] CR2: 00007f4e1dba7000 CR3: 00000001cfd07000 CR4: 00000000001406f0 [ 78.510233][ T5] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.518226][ T5] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.526198][ T5] Call Trace: [ 78.529490][ T5] tty_unregister_device+0x10d/0x1a0 [ 78.534784][ T5] hso_probe.cold+0x6e/0x14c [ 78.539377][ T5] usb_probe_interface+0x310/0x800 [ 78.544482][ T5] ? usb_probe_device+0x140/0x140 [ 78.549518][ T5] really_probe+0x290/0xad0 [ 78.554010][ T5] driver_probe_device+0x223/0x350 [ 78.559112][ T5] __device_attach_driver+0x1d1/0x290 [ 78.564481][ T5] ? driver_allows_async_probing+0x160/0x160 [ 78.570447][ T5] bus_for_each_drv+0x162/0x1e0 [ 78.575286][ T5] ? bus_rescan_devices+0x20/0x20 [ 78.580372][ T5] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 78.586448][ T5] ? lockdep_hardirqs_on+0x382/0x580 [ 78.591724][ T5] __device_attach+0x217/0x390 [ 78.596585][ T5] ? device_bind_driver+0xd0/0xd0 [ 78.601718][ T5] bus_probe_device+0x1e4/0x290 [ 78.606572][ T5] device_add+0x1459/0x1bf0 [ 78.611241][ T5] ? wait_for_completion+0x3c0/0x3c0 [ 78.616535][ T5] ? device_link_remove+0x110/0x110 [ 78.621751][ T5] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 78.627650][ T5] usb_set_configuration+0xe47/0x17d0 [ 78.633122][ T5] generic_probe+0x9d/0xd5 [ 78.637541][ T5] usb_probe_device+0xaf/0x140 [ 78.642422][ T5] ? usb_suspend+0x5f0/0x5f0 [ 78.647018][ T5] really_probe+0x290/0xad0 [ 78.651629][ T5] driver_probe_device+0x223/0x350 [ 78.656787][ T5] __device_attach_driver+0x1d1/0x290 [ 78.662235][ T5] ? driver_allows_async_probing+0x160/0x160 [ 78.668210][ T5] bus_for_each_drv+0x162/0x1e0 [ 78.673058][ T5] ? bus_rescan_devices+0x20/0x20 [ 78.678071][ T5] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 78.684026][ T5] ? lockdep_hardirqs_on+0x382/0x580 [ 78.689323][ T5] __device_attach+0x217/0x390 [ 78.694092][ T5] ? device_bind_driver+0xd0/0xd0 [ 78.699319][ T5] bus_probe_device+0x1e4/0x290 [ 78.704165][ T5] device_add+0x1459/0x1bf0 [ 78.708769][ T5] ? device_link_remove+0x110/0x110 [ 78.714249][ T5] usb_new_device.cold+0x540/0xcd0 [ 78.719373][ T5] hub_event+0x21cb/0x4300 [ 78.723848][ T5] ? hub_port_debounce+0x350/0x350 [ 78.728969][ T5] ? find_held_lock+0x2d/0x110 [ 78.733753][ T5] ? mark_held_locks+0xe0/0xe0 [ 78.738517][ T5] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 78.744058][ T5] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 78.749334][ T5] process_one_work+0x945/0x15c0 [ 78.754264][ T5] ? pwq_dec_nr_in_flight+0x310/0x310 [ 78.759639][ T5] worker_thread+0x96/0xe20 [ 78.764135][ T5] ? process_one_work+0x15c0/0x15c0 [ 78.769493][ T5] kthread+0x318/0x420 [ 78.773555][ T5] ? kthread_create_on_node+0xf0/0xf0 [ 78.778919][ T5] ret_from_fork+0x24/0x30 [ 78.783435][ T5] Modules linked in: [ 78.787396][ T5] ---[ end trace 9004b2e5b835f35c ]--- [ 78.793010][ T5] RIP: 0010:cdev_del+0x22/0x90 [ 78.797824][ T5] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 f3 cd 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 [ 78.817607][ T5] RSP: 0018:ffff8881da1df268 EFLAGS: 00010207 [ 78.823708][ T5] RAX: dffffc0000000000 RBX: ffff8881d514c200 RCX: ffffffff8214b4ee [ 78.831671][ T5] RDX: 000000000000000c RSI: ffffffff816c430d RDI: 0000000000000064 [ 78.839677][ T5] RBP: 0000000000000000 R08: ffff8881da196200 R09: fffffbfff1269cae [ 78.847709][ T5] R10: fffffbfff1269cad R11: ffffffff8934e56f R12: 0000000000000000 [ 78.855857][ T5] R13: ffff8881d5263000 R14: ffff8881cd362000 R15: ffff8881cd466070 [ 78.863955][ T5] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 78.872931][ T5] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.879614][ T5] CR2: 00007f4e1dba7000 CR3: 00000001cfd07000 CR4: 00000000001406f0 [ 78.887681][ T5] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.895761][ T5] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.904135][ T5] Kernel panic - not syncing: Fatal exception [ 78.911046][ T5] Kernel Offset: disabled [ 78.916560][ T5] Rebooting in 86400 seconds..