[info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting [ 15.038735][ C1] random: crng init done periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.139' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 25.936223][ T81] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 25.946219][ T5] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 25.946383][ T101] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 25.953786][ T1732] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 25.961768][ T17] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 25.968807][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 26.196172][ T81] usb 6-1: Using ep0 maxpacket: 32 [ 26.216182][ T5] usb 4-1: Using ep0 maxpacket: 32 [ 26.216250][ T17] usb 3-1: Using ep0 maxpacket: 32 [ 26.221476][ T1732] usb 5-1: Using ep0 maxpacket: 32 [ 26.226956][ T101] usb 2-1: Using ep0 maxpacket: 32 [ 26.231927][ T12] usb 1-1: Using ep0 maxpacket: 32 [ 26.316405][ T81] usb 6-1: config 0 has an invalid interface number: 15 but max is 0 [ 26.325714][ T81] usb 6-1: config 0 has no interface number 0 [ 26.332377][ T81] usb 6-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 26.341470][ T81] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 26.346374][ T5] usb 4-1: config 0 has an invalid interface number: 15 but max is 0 [ 26.355038][ T81] usb 6-1: config 0 descriptor?? [ 26.357739][ T5] usb 4-1: config 0 has no interface number 0 [ 26.366282][ T17] usb 3-1: config 0 has an invalid interface number: 15 but max is 0 [ 26.368764][ T12] usb 1-1: config 0 has an invalid interface number: 15 but max is 0 [ 26.377154][ T17] usb 3-1: config 0 has no interface number 0 [ 26.385360][ T12] usb 1-1: config 0 has no interface number 0 [ 26.391543][ T101] usb 2-1: config 0 has an invalid interface number: 15 but max is 0 [ 26.397602][ T1732] usb 5-1: config 0 has an invalid interface number: 15 but max is 0 [ 26.405613][ T101] usb 2-1: config 0 has no interface number 0 [ 26.413689][ T1732] usb 5-1: config 0 has no interface number 0 [ 26.413735][ T1732] usb 5-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 26.413748][ T1732] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 26.414683][ T5] usb 4-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 26.426021][ T17] usb 3-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 26.426176][ T5] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 26.435278][ T17] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 26.444263][ T1732] usb 5-1: config 0 descriptor?? [ 26.456029][ T101] usb 2-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 26.467562][ T12] usb 1-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 26.469552][ T101] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 26.478392][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 26.488566][ T12] usb 1-1: config 0 descriptor?? [ 26.494010][ T17] usb 3-1: config 0 descriptor?? [ 26.509330][ T5] usb 4-1: config 0 descriptor?? [ 26.510584][ T101] usb 2-1: config 0 descriptor?? [ 26.637920][ T81] hso 6-1:0.15: Failed to find BULK IN ep [ 26.736944][ T1732] hso 5-1:0.15: Failed to find BULK IN ep [ 26.777127][ T12] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 26.784688][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.4.0-rc6+ #0 [ 26.792046][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.796658][ T101] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 26.802129][ T12] Workqueue: usb_hub_wq hub_event [ 26.814562][ T12] Call Trace: [ 26.817843][ T12] dump_stack+0xca/0x13e [ 26.822086][ T12] sysfs_warn_dup.cold+0x1c/0x2d [ 26.827011][ T12] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 26.833071][ T12] sysfs_create_link+0x61/0xc0 [ 26.837828][ T12] device_add+0x788/0x16f0 [ 26.842234][ T12] ? uevent_store+0x50/0x50 [ 26.846726][ T12] ? __init_waitqueue_head+0x31/0x90 [ 26.852010][ T12] tty_register_device_attr+0x341/0x6f0 [ 26.857554][ T12] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 26.863871][ T12] ? mark_held_locks+0x9f/0xe0 [ 26.868623][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 26.874418][ T12] ? tty_port_register_device_attr+0xb9/0x110 [ 26.880470][ T12] hso_serial_common_create+0x113/0x710 [ 26.886001][ T12] ? kasan_unpoison_shadow+0x30/0x40 [ 26.891272][ T12] hso_probe+0xc93/0x1b7b [ 26.895594][ T12] usb_probe_interface+0x305/0x7a0 [ 26.900691][ T12] ? usb_probe_device+0x100/0x100 [ 26.905704][ T12] really_probe+0x281/0x6d0 [ 26.910198][ T12] driver_probe_device+0x104/0x210 [ 26.915296][ T12] __device_attach_driver+0x1c2/0x220 [ 26.920662][ T12] ? driver_allows_async_probing+0x160/0x160 [ 26.926642][ T12] bus_for_each_drv+0x162/0x1e0 [ 26.931509][ T12] ? bus_rescan_devices+0x20/0x20 [ 26.936528][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 26.942423][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 26.947695][ T12] __device_attach+0x217/0x360 [ 26.952459][ T12] ? device_bind_driver+0xd0/0xd0 [ 26.957471][ T12] ? kobject_uevent_env+0x29e/0x1160 [ 26.962741][ T12] ? kobject_uevent_env+0x2a8/0x1160 [ 26.968015][ T12] bus_probe_device+0x1e4/0x290 [ 26.972859][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 26.978738][ T12] device_add+0xae6/0x16f0 [ 26.983147][ T12] ? uevent_store+0x50/0x50 [ 26.987639][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 26.993610][ T12] usb_set_configuration+0xdf6/0x1670 [ 26.999152][ T12] generic_probe+0x9d/0xd5 [ 27.004427][ T12] usb_probe_device+0x99/0x100 [ 27.009181][ T12] ? usb_suspend+0x620/0x620 [ 27.013759][ T12] really_probe+0x281/0x6d0 [ 27.018253][ T12] driver_probe_device+0x104/0x210 [ 27.023356][ T12] __device_attach_driver+0x1c2/0x220 [ 27.028719][ T12] ? driver_allows_async_probing+0x160/0x160 [ 27.034686][ T12] bus_for_each_drv+0x162/0x1e0 [ 27.039525][ T12] ? bus_rescan_devices+0x20/0x20 [ 27.044536][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 27.050331][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 27.055601][ T12] __device_attach+0x217/0x360 [ 27.060354][ T12] ? device_bind_driver+0xd0/0xd0 [ 27.065368][ T12] ? kobject_uevent_env+0x29e/0x1160 [ 27.070639][ T12] ? kobject_uevent_env+0x2a8/0x1160 [ 27.075912][ T12] bus_probe_device+0x1e4/0x290 [ 27.080755][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 27.086643][ T12] device_add+0xae6/0x16f0 [ 27.091059][ T12] ? uevent_store+0x50/0x50 [ 27.095551][ T12] usb_new_device.cold+0x6a4/0xe79 [ 27.100647][ T12] hub_event+0x1df8/0x3800 [ 27.105060][ T12] ? hub_port_debounce+0x260/0x260 [ 27.110161][ T12] ? find_held_lock+0x2d/0x110 [ 27.114912][ T12] ? mark_held_locks+0xe0/0xe0 [ 27.119672][ T12] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 27.125201][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 27.130486][ T12] process_one_work+0x92b/0x1530 [ 27.135409][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 27.140765][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 27.145777][ T12] worker_thread+0x96/0xe20 [ 27.150268][ T12] ? process_one_work+0x1530/0x1530 [ 27.155462][ T12] kthread+0x318/0x420 [ 27.159517][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 27.164874][ T12] ret_from_fork+0x24/0x30 [ 27.169279][ T101] CPU: 1 PID: 101 Comm: kworker/1:2 Not tainted 5.4.0-rc6+ #0 [ 27.175206][ T5] hso 4-1:0.15: Failed to find BULK IN ep [ 27.176765][ T101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.176778][ T101] Workqueue: usb_hub_wq hub_event [ 27.176786][ T101] Call Trace: [ 27.176800][ T101] dump_stack+0xca/0x13e [ 27.176814][ T101] sysfs_warn_dup.cold+0x1c/0x2d [ 27.176826][ T101] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 27.176836][ T101] sysfs_create_link+0x61/0xc0 [ 27.176848][ T101] device_add+0x788/0x16f0 [ 27.176857][ T101] ? uevent_store+0x50/0x50 [ 27.176872][ T101] ? __init_waitqueue_head+0x31/0x90 [ 27.176883][ T101] tty_register_device_attr+0x341/0x6f0 [ 27.176895][ T101] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 27.176908][ T101] ? mark_held_locks+0x9f/0xe0 [ 27.176920][ T101] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 27.176932][ T101] ? tty_port_register_device_attr+0xb9/0x110 [ 27.176944][ T101] hso_serial_common_create+0x113/0x710 [ 27.176956][ T101] ? kasan_unpoison_shadow+0x30/0x40 [ 27.176966][ T101] hso_probe+0xc93/0x1b7b [ 27.176978][ T101] usb_probe_interface+0x305/0x7a0 [ 27.176989][ T101] ? usb_probe_device+0x100/0x100 [ 27.177006][ T101] really_probe+0x281/0x6d0 [ 27.292644][ T101] driver_probe_device+0x104/0x210 [ 27.297739][ T101] __device_attach_driver+0x1c2/0x220 [ 27.303093][ T101] ? driver_allows_async_probing+0x160/0x160 [ 27.309052][ T101] bus_for_each_drv+0x162/0x1e0 [ 27.313882][ T101] ? bus_rescan_devices+0x20/0x20 [ 27.318900][ T101] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 27.324684][ T101] ? lockdep_hardirqs_on+0x382/0x580 [ 27.329948][ T101] __device_attach+0x217/0x360 [ 27.334779][ T101] ? device_bind_driver+0xd0/0xd0 [ 27.339784][ T101] ? kobject_uevent_env+0x29e/0x1160 [ 27.345046][ T101] ? kobject_uevent_env+0x2a8/0x1160 [ 27.350397][ T101] bus_probe_device+0x1e4/0x290 [ 27.355231][ T101] ? blocking_notifier_call_chain+0x54/0xa0 [ 27.361112][ T101] device_add+0xae6/0x16f0 [ 27.365508][ T101] ? uevent_store+0x50/0x50 [ 27.370000][ T101] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 27.375875][ T101] usb_set_configuration+0xdf6/0x1670 [ 27.381230][ T101] generic_probe+0x9d/0xd5 [ 27.385627][ T101] usb_probe_device+0x99/0x100 [ 27.390372][ T101] ? usb_suspend+0x620/0x620 [ 27.394941][ T101] really_probe+0x281/0x6d0 [ 27.399422][ T101] driver_probe_device+0x104/0x210 [ 27.404523][ T101] __device_attach_driver+0x1c2/0x220 [ 27.409882][ T101] ? driver_allows_async_probing+0x160/0x160 [ 27.415842][ T101] bus_for_each_drv+0x162/0x1e0 [ 27.420679][ T101] ? bus_rescan_devices+0x20/0x20 [ 27.425729][ T101] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 27.431517][ T101] ? lockdep_hardirqs_on+0x382/0x580 [ 27.436781][ T101] __device_attach+0x217/0x360 [ 27.441536][ T101] ? device_bind_driver+0xd0/0xd0 [ 27.446571][ T101] ? kobject_uevent_env+0x29e/0x1160 [ 27.451973][ T101] ? kobject_uevent_env+0x2a8/0x1160 [ 27.457392][ T101] bus_probe_device+0x1e4/0x290 [ 27.462242][ T101] ? blocking_notifier_call_chain+0x54/0xa0 [ 27.468135][ T101] device_add+0xae6/0x16f0 [ 27.472547][ T101] ? uevent_store+0x50/0x50 [ 27.477050][ T101] usb_new_device.cold+0x6a4/0xe79 [ 27.482153][ T101] hub_event+0x1df8/0x3800 [ 27.486556][ T101] ? hub_port_debounce+0x260/0x260 [ 27.491826][ T101] ? find_held_lock+0x2d/0x110 [ 27.496575][ T101] ? mark_held_locks+0xe0/0xe0 [ 27.501321][ T101] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 27.506843][ T101] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 27.512107][ T101] process_one_work+0x92b/0x1530 [ 27.517035][ T101] ? pwq_dec_nr_in_flight+0x310/0x310 [ 27.522384][ T101] ? do_raw_spin_lock+0x11a/0x280 [ 27.527396][ T101] worker_thread+0x96/0xe20 [ 27.531891][ T101] ? process_one_work+0x1530/0x1530 [ 27.537065][ T101] kthread+0x318/0x420 [ 27.541111][ T101] ? kthread_create_on_node+0xf0/0xf0 [ 27.546462][ T101] ret_from_fork+0x24/0x30 [ 27.551519][ T17] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 27.559024][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.4.0-rc6+ #0 [ 27.566390][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program executing program executing program executing program [ 27.572645][ T5] usb 4-1: USB disconnect, device number 2 [ 27.576448][ T17] Workqueue: usb_hub_wq hub_event [ 27.576456][ T17] Call Trace: [ 27.576472][ T17] dump_stack+0xca/0x13e [ 27.576485][ T17] sysfs_warn_dup.cold+0x1c/0x2d [ 27.576496][ T17] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 27.576504][ T17] sysfs_create_link+0x61/0xc0 [ 27.576520][ T17] device_add+0x788/0x16f0 [ 27.607800][ T12] hso 1-1:0.15: Failed to find BULK IN ep [ 27.610977][ T17] ? uevent_store+0x50/0x50 [ 27.610993][ T17] ? __init_waitqueue_head+0x31/0x90 [ 27.611006][ T17] tty_register_device_attr+0x341/0x6f0 [ 27.611021][ T17] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 27.615514][ T12] kasan: CONFIG_KASAN_INLINE enabled [ 27.621112][ T17] ? mark_held_locks+0x9f/0xe0 [ 27.621125][ T17] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 27.621135][ T17] ? tty_port_register_device_attr+0xb9/0x110 [ 27.621147][ T17] hso_serial_common_create+0x113/0x710 [ 27.621156][ T17] ? kasan_unpoison_shadow+0x30/0x40 [ 27.621170][ T17] hso_probe+0xc93/0x1b7b [ 27.625685][ T12] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 27.630945][ T17] usb_probe_interface+0x305/0x7a0 [ 27.630957][ T17] ? usb_probe_device+0x100/0x100 [ 27.630972][ T17] really_probe+0x281/0x6d0 [ 27.636504][ T12] general protection fault: 0000 [#1] SMP KASAN [ 27.642021][ T17] driver_probe_device+0x104/0x210 [ 27.647272][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.4.0-rc6+ #0 [ 27.652012][ T17] __device_attach_driver+0x1c2/0x220 [ 27.657780][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.664417][ T17] ? driver_allows_async_probing+0x160/0x160 [ 27.669942][ T12] Workqueue: usb_hub_wq hub_event [ 27.675207][ T17] bus_for_each_drv+0x162/0x1e0 [ 27.679509][ T12] RIP: 0010:cdev_del+0x22/0x90 [ 27.687538][ T17] ? bus_rescan_devices+0x20/0x20 [ 27.692622][ T12] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 f3 21 d4 ff 48 8d 7d 64 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 4f 48 [ 27.698836][ T17] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 27.703307][ T12] RSP: 0018:ffff8881da227280 EFLAGS: 00010207 [ 27.711084][ T17] ? lockdep_hardirqs_on+0x382/0x580 [ 27.716243][ T12] RAX: dffffc0000000000 RBX: ffff8881d5b92a00 RCX: ffffffff820ef17e [ 27.716254][ T12] RDX: 000000000000000c RSI: ffffffff816a046d RDI: 0000000000000064 [ 27.723594][ T17] __device_attach+0x217/0x360 [ 27.728953][ T12] RBP: 0000000000000000 R08: ffff8881da211800 R09: fffffbfff11aadae [ 27.739005][ T17] ? device_bind_driver+0xd0/0xd0 [ 27.744961][ T12] R10: fffffbfff11aadad R11: ffffffff88d56d6f R12: 0000000000000000 [ 27.749970][ T17] ? kobject_uevent_env+0x29e/0x1160 [ 27.754786][ T12] R13: ffff8881d55e2000 R14: ffff8881cec23000 R15: ffff8881cf6a2070 [ 27.759523][ T17] ? kobject_uevent_env+0x2a8/0x1160 [ 27.764518][ T12] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 27.784106][ T17] bus_probe_device+0x1e4/0x290 [ 27.789889][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.795930][ T17] ? blocking_notifier_call_chain+0x54/0xa0 [ 27.801178][ T12] CR2: 00007fac02e50000 CR3: 00000001d19b4000 CR4: 00000000001406f0 [ 27.809128][ T17] device_add+0xae6/0x16f0 [ 27.817080][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.821910][ T17] ? uevent_store+0x50/0x50 [ 27.829854][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.834929][ T17] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 27.843112][ T12] Call Trace: [ 27.848395][ T17] usb_set_configuration+0xdf6/0x1670 [ 27.856390][ T12] tty_unregister_device+0x10d/0x1a0 [ 27.861652][ T17] generic_probe+0x9d/0xd5 [ 27.870561][ T12] hso_probe.cold+0x6e/0x14c [ 27.875382][ T17] usb_probe_device+0x99/0x100 [ 27.881937][ T12] usb_probe_interface+0x305/0x7a0 [ 27.887815][ T17] ? usb_suspend+0x620/0x620 [ 27.895762][ T12] ? usb_probe_device+0x100/0x100 [ 27.900162][ T17] really_probe+0x281/0x6d0 [ 27.908552][ T12] really_probe+0x281/0x6d0 [ 27.913026][ T17] driver_probe_device+0x104/0x210 [ 27.920991][ T12] driver_probe_device+0x104/0x210 [ 27.926778][ T17] __device_attach_driver+0x1c2/0x220 [ 27.930050][ T12] __device_attach_driver+0x1c2/0x220 [ 27.935401][ T17] ? driver_allows_async_probing+0x160/0x160 [ 27.940667][ T12] ? driver_allows_async_probing+0x160/0x160 [ 27.945055][ T17] bus_for_each_drv+0x162/0x1e0 [ 27.949614][ T12] bus_for_each_drv+0x162/0x1e0 [ 27.954359][ T17] ? bus_rescan_devices+0x20/0x20 [ 27.959439][ T12] ? bus_rescan_devices+0x20/0x20 [ 27.964011][ T17] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 27.969002][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 27.973471][ T17] ? lockdep_hardirqs_on+0x382/0x580 [ 27.973485][ T17] __device_attach+0x217/0x360 [ 27.977956][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 27.983040][ T17] ? device_bind_driver+0xd0/0xd0 [ 27.988120][ T12] __device_attach+0x217/0x360 [ 27.993457][ T17] ? kobject_uevent_env+0x29e/0x1160 [ 27.993473][ T17] ? kobject_uevent_env+0x2a8/0x1160 [ 27.998820][ T12] ? device_bind_driver+0xd0/0xd0 [ 28.004768][ T17] bus_probe_device+0x1e4/0x290 [ 28.010731][ T12] ? kobject_uevent_env+0x29e/0x1160 [ 28.015556][ T17] ? blocking_notifier_call_chain+0x54/0xa0 [ 28.020373][ T12] ? kobject_uevent_env+0x2a8/0x1160 [ 28.025364][ T17] device_add+0xae6/0x16f0 [ 28.030355][ T12] bus_probe_device+0x1e4/0x290 [ 28.036129][ T17] ? uevent_store+0x50/0x50 [ 28.041906][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 28.047157][ T17] usb_new_device.cold+0x6a4/0xe79 [ 28.051888][ T12] device_add+0xae6/0x16f0 [ 28.057489][ T17] hub_event+0x1df8/0x3800 [ 28.062482][ T12] ? uevent_store+0x50/0x50 [ 28.067221][ T17] ? hub_port_debounce+0x260/0x260 [ 28.072478][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 28.077730][ T17] ? find_held_lock+0x2d/0x110 [ 28.082725][ T12] usb_set_configuration+0xdf6/0x1670 [ 28.087555][ T17] ? mark_held_locks+0xe0/0xe0 [ 28.092808][ T12] generic_probe+0x9d/0xd5 [ 28.098671][ T17] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 28.103928][ T12] usb_probe_device+0x99/0x100 executing program executing program [ 28.108311][ T17] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 28.113132][ T12] ? usb_suspend+0x620/0x620 [ 28.117605][ T17] process_one_work+0x92b/0x1530 [ 28.123479][ T12] really_probe+0x281/0x6d0 [ 28.128561][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 28.132950][ T12] driver_probe_device+0x104/0x210 [ 28.137357][ T17] worker_thread+0x96/0xe20 [ 28.141829][ T12] __device_attach_driver+0x1c2/0x220 [ 28.146911][ T17] ? process_one_work+0x1530/0x1530 [ 28.152687][ T12] ? driver_allows_async_probing+0x160/0x160 [ 28.157418][ T17] kthread+0x318/0x420 [ 28.162759][ T12] bus_for_each_drv+0x162/0x1e0 [ 28.167491][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 28.171877][ T12] ? bus_rescan_devices+0x20/0x20 [ 28.177391][ T17] ret_from_fork+0x24/0x30 [ 28.182125][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 28.196331][ T17] hso 3-1:0.15: Failed to find BULK IN ep [ 28.196876][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 28.196893][ T12] __device_attach+0x217/0x360 [ 28.201425][ T17] kasan: CONFIG_KASAN_INLINE enabled [ 28.206890][ T12] ? device_bind_driver+0xd0/0xd0 [ 28.206902][ T12] ? kobject_uevent_env+0x29e/0x1160 [ 28.206917][ T12] ? kobject_uevent_env+0x2a8/0x1160 [ 28.211995][ T17] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 28.216474][ T12] bus_probe_device+0x1e4/0x290 [ 28.216486][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 28.216500][ T12] device_add+0xae6/0x16f0 [ 28.322886][ T12] ? uevent_store+0x50/0x50 [ 28.327363][ T12] usb_new_device.cold+0x6a4/0xe79 [ 28.332446][ T12] hub_event+0x1df8/0x3800 [ 28.336837][ T12] ? hub_port_debounce+0x260/0x260 [ 28.341922][ T12] ? find_held_lock+0x2d/0x110 [ 28.346666][ T12] ? mark_held_locks+0xe0/0xe0 [ 28.351413][ T12] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 28.356946][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 28.362205][ T12] process_one_work+0x92b/0x1530 [ 28.367115][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 28.372466][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 28.377462][ T12] worker_thread+0x96/0xe20 [ 28.381939][ T12] ? process_one_work+0x1530/0x1530 [ 28.387106][ T12] kthread+0x318/0x420 [ 28.391168][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 28.396514][ T12] ret_from_fork+0x24/0x30 [ 28.400898][ T12] Modules linked in: [ 28.404824][ T17] general protection fault: 0000 [#2] SMP KASAN [ 28.404876][ T12] ---[ end trace 95b6eceed3a48267 ]--- [ 28.411078][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Tainted: G D 5.4.0-rc6+ #0 [ 28.411084][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.411099][ T17] Workqueue: usb_hub_wq hub_event [ 28.416573][ T12] RIP: 0010:cdev_del+0x22/0x90 [ 28.425324][ T17] RIP: 0010:cdev_del+0x22/0x90 [ 28.435397][ T12] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 f3 21 d4 ff 48 8d 7d 64 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 4f 48 [ 28.440379][ T17] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 f3 21 d4 ff 48 8d 7d 64 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 4f 48 [ 28.440384][ T17] RSP: 0018:ffff8881da267280 EFLAGS: 00010207 [ 28.445130][ T12] RSP: 0018:ffff8881da227280 EFLAGS: 00010207 [ 28.449883][ T17] RAX: dffffc0000000000 RBX: ffff8881d5b92a00 RCX: ffffffff820ef17e [ 28.449889][ T17] RDX: 000000000000000c RSI: ffffffff816a046d RDI: 0000000000000064 [ 28.449895][ T17] RBP: 0000000000000000 R08: ffff8881da24b000 R09: ffffed103b466727 [ 28.449906][ T17] R10: ffffed103b466726 R11: ffff8881da333933 R12: 0000000000000000 [ 28.469633][ T12] RAX: dffffc0000000000 RBX: ffff8881d5b92a00 RCX: ffffffff820ef17e [ 28.489368][ T17] R13: ffff8881d55e2000 R14: ffff8881cec02000 R15: ffff8881cf65b070 [ 28.489377][ T17] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 28.489392][ T17] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.495424][ T12] RDX: 000000000000000c RSI: ffffffff816a046d RDI: 0000000000000064 [ 28.495436][ T12] RBP: 0000000000000000 R08: ffff8881da211800 R09: fffffbfff11aadae [ 28.501477][ T17] CR2: 00000000004b564c CR3: 00000001c6b3c000 CR4: 00000000001406e0 [ 28.501483][ T17] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.501488][ T17] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.501498][ T17] Call Trace: [ 28.509467][ T12] R10: fffffbfff11aadad R11: ffffffff88d56d6f R12: 0000000000000000 [ 28.517412][ T17] tty_unregister_device+0x10d/0x1a0 [ 28.517428][ T17] hso_probe.cold+0x6e/0x14c [ 28.525372][ T12] R13: ffff8881d55e2000 R14: ffff8881cec23000 R15: ffff8881cf6a2070 [ 28.533407][ T17] usb_probe_interface+0x305/0x7a0 [ 28.533416][ T17] ? usb_probe_device+0x100/0x100 [ 28.533431][ T17] really_probe+0x281/0x6d0 [ 28.542514][ T12] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 28.550467][ T17] driver_probe_device+0x104/0x210 [ 28.550484][ T17] __device_attach_driver+0x1c2/0x220 [ 28.559400][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.565962][ T17] ? driver_allows_async_probing+0x160/0x160 [ 28.573909][ T12] CR2: 00007fac02e50000 CR3: 00000001d19b4000 CR4: 00000000001406f0 [ 28.581848][ T17] bus_for_each_drv+0x162/0x1e0 [ 28.581862][ T17] ? bus_rescan_devices+0x20/0x20 [ 28.589813][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.597759][ T17] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 28.597773][ T17] ? lockdep_hardirqs_on+0x382/0x580 [ 28.605712][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.608979][ T17] __device_attach+0x217/0x360 [ 28.608993][ T17] ? device_bind_driver+0xd0/0xd0 [ 28.616946][ T12] Kernel panic - not syncing: Fatal exception [ 28.622213][ T17] ? kobject_uevent_env+0x29e/0x1160 [ 28.748438][ T17] ? kobject_uevent_env+0x2a8/0x1160 [ 28.753705][ T17] bus_probe_device+0x1e4/0x290 [ 28.758536][ T17] ? blocking_notifier_call_chain+0x54/0xa0 [ 28.764412][ T17] device_add+0xae6/0x16f0 [ 28.768804][ T17] ? uevent_store+0x50/0x50 [ 28.773288][ T17] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 28.779073][ T17] usb_set_configuration+0xdf6/0x1670 [ 28.784421][ T17] generic_probe+0x9d/0xd5 [ 28.788818][ T17] usb_probe_device+0x99/0x100 [ 28.793559][ T17] ? usb_suspend+0x620/0x620 [ 28.798124][ T17] really_probe+0x281/0x6d0 [ 28.802612][ T17] driver_probe_device+0x104/0x210 [ 28.807701][ T17] __device_attach_driver+0x1c2/0x220 [ 28.813139][ T17] ? driver_allows_async_probing+0x160/0x160 [ 28.819103][ T17] bus_for_each_drv+0x162/0x1e0 [ 28.824467][ T17] ? bus_rescan_devices+0x20/0x20 [ 28.829469][ T17] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 28.835250][ T17] ? lockdep_hardirqs_on+0x382/0x580 [ 28.840522][ T17] __device_attach+0x217/0x360 [ 28.845261][ T17] ? device_bind_driver+0xd0/0xd0 [ 28.850263][ T17] ? kobject_uevent_env+0x29e/0x1160 [ 28.855524][ T17] ? kobject_uevent_env+0x2a8/0x1160 [ 28.860787][ T17] bus_probe_device+0x1e4/0x290 [ 28.865615][ T17] ? blocking_notifier_call_chain+0x54/0xa0 [ 28.871484][ T17] device_add+0xae6/0x16f0 [ 28.875876][ T17] ? uevent_store+0x50/0x50 [ 28.880353][ T17] usb_new_device.cold+0x6a4/0xe79 [ 28.885438][ T17] hub_event+0x1df8/0x3800 [ 28.889835][ T17] ? hub_port_debounce+0x260/0x260 [ 28.894922][ T17] ? find_held_lock+0x2d/0x110 [ 28.899683][ T17] ? mark_held_locks+0xe0/0xe0 [ 28.904425][ T17] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 28.909962][ T17] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 28.915246][ T17] process_one_work+0x92b/0x1530 [ 28.920167][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 28.925607][ T17] worker_thread+0x96/0xe20 [ 28.930094][ T17] ? process_one_work+0x1530/0x1530 [ 28.935274][ T17] kthread+0x318/0x420 [ 28.939326][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 28.944676][ T17] ret_from_fork+0x24/0x30 [ 28.949063][ T17] Modules linked in: [ 28.953599][ T12] Kernel Offset: disabled [ 28.957917][ T12] Rebooting in 86400 seconds..