[info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 14.914320][ C1] random: crng init done [....] Starting 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 '10.128.10.9' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 48.777654][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 48.777661][ T12] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 48.797609][ T101] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 48.798650][ T17] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 48.805261][ T5] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 48.820501][ T1734] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 49.027576][ T12] usb 6-1: Using ep0 maxpacket: 32 [ 49.027613][ T22] usb 1-1: Using ep0 maxpacket: 32 [ 49.067588][ T17] usb 5-1: Using ep0 maxpacket: 32 [ 49.067677][ T1734] usb 3-1: Using ep0 maxpacket: 32 [ 49.077954][ T101] usb 2-1: Using ep0 maxpacket: 32 [ 49.083121][ T5] usb 4-1: Using ep0 maxpacket: 32 [ 49.157777][ T22] usb 1-1: config 0 has an invalid interface number: 15 but max is 0 [ 49.166014][ T22] usb 1-1: config 0 has no interface number 0 [ 49.172445][ T22] usb 1-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 49.177744][ T12] usb 6-1: config 0 has an invalid interface number: 15 but max is 0 [ 49.181531][ T22] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 49.189615][ T12] usb 6-1: config 0 has no interface number 0 [ 49.190152][ T12] usb 6-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 49.197781][ T17] usb 5-1: config 0 has an invalid interface number: 15 but max is 0 [ 49.203727][ T12] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 49.205717][ T12] usb 6-1: config 0 descriptor?? [ 49.212830][ T17] usb 5-1: config 0 has no interface number 0 [ 49.216067][ T17] usb 5-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 49.237755][ T101] usb 2-1: config 0 has an invalid interface number: 15 but max is 0 [ 49.240096][ T17] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 49.249186][ T101] usb 2-1: config 0 has no interface number 0 [ 49.263094][ T22] usb 1-1: config 0 descriptor?? [ 49.265184][ T5] usb 4-1: config 0 has an invalid interface number: 15 but max is 0 [ 49.271726][ T17] usb 5-1: config 0 descriptor?? [ 49.276194][ T5] usb 4-1: config 0 has no interface number 0 [ 49.276244][ T1734] usb 3-1: config 0 has an invalid interface number: 15 but max is 0 [ 49.276257][ T1734] usb 3-1: config 0 has no interface number 0 [ 49.311136][ T5] usb 4-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 49.320250][ T5] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 49.332976][ T101] usb 2-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 49.342077][ T101] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 49.350664][ T5] usb 4-1: config 0 descriptor?? [ 49.356053][ T1734] usb 3-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 49.365142][ T1734] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 49.374045][ T101] usb 2-1: config 0 descriptor?? [ 49.380406][ T1734] usb 3-1: config 0 descriptor?? [ 49.499107][ T12] hso 6-1:0.15: Failed to find BULK IN ep [ 49.538710][ T22] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 49.546191][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.4.0-rc1+ #0 [ 49.553537][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.563579][ T22] Workqueue: usb_hub_wq hub_event [ 49.568585][ T22] Call Trace: [ 49.571885][ T22] dump_stack+0xca/0x13e [ 49.576109][ T22] sysfs_warn_dup.cold+0x1c/0x2d [ 49.581030][ T22] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 49.587093][ T22] sysfs_create_link+0x61/0xc0 [ 49.591835][ T22] device_add+0x788/0x16f0 [ 49.596585][ T22] ? uevent_store+0x50/0x50 [ 49.601089][ T22] ? __init_waitqueue_head+0x31/0x90 [ 49.606364][ T22] tty_register_device_attr+0x341/0x6f0 [ 49.611886][ T22] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 49.617408][ T22] ? mark_held_locks+0x9f/0xe0 [ 49.622156][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 49.627940][ T22] ? tty_port_register_device_attr+0xb9/0x110 [ 49.633993][ T22] hso_serial_common_create+0x113/0x710 [ 49.639531][ T22] ? lockdep_init_map+0x1b0/0x5e0 [ 49.644554][ T22] hso_probe+0xc93/0x1a46 [ 49.648867][ T22] usb_probe_interface+0x305/0x7a0 [ 49.653956][ T22] ? usb_probe_device+0x100/0x100 [ 49.658961][ T22] really_probe+0x281/0x6d0 [ 49.663444][ T22] driver_probe_device+0x104/0x210 [ 49.668547][ T22] __device_attach_driver+0x1c2/0x220 [ 49.673907][ T22] ? driver_allows_async_probing+0x160/0x160 [ 49.679862][ T22] bus_for_each_drv+0x162/0x1e0 [ 49.684695][ T22] ? bus_rescan_devices+0x20/0x20 [ 49.689699][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 executing program [ 49.695484][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 49.700752][ T22] __device_attach+0x217/0x360 [ 49.705492][ T22] ? device_bind_driver+0xd0/0xd0 [ 49.710498][ T22] ? kobject_uevent_env+0x29e/0x1150 [ 49.715781][ T22] ? kobject_uevent_env+0x2a8/0x1150 [ 49.721050][ T22] bus_probe_device+0x1e4/0x290 [ 49.725890][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 49.731771][ T22] device_add+0xae6/0x16f0 [ 49.736184][ T22] ? uevent_store+0x50/0x50 [ 49.740684][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 49.746494][ T22] usb_set_configuration+0xdf6/0x1670 [ 49.751877][ T22] generic_probe+0x9d/0xd5 [ 49.756287][ T22] usb_probe_device+0x99/0x100 [ 49.761032][ T22] ? usb_suspend+0x620/0x620 [ 49.765599][ T22] really_probe+0x281/0x6d0 [ 49.770079][ T22] driver_probe_device+0x104/0x210 [ 49.775168][ T22] __device_attach_driver+0x1c2/0x220 [ 49.780521][ T22] ? driver_allows_async_probing+0x160/0x160 [ 49.786477][ T22] bus_for_each_drv+0x162/0x1e0 [ 49.791306][ T22] ? bus_rescan_devices+0x20/0x20 [ 49.796314][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 49.802100][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 49.807377][ T22] __device_attach+0x217/0x360 [ 49.812129][ T22] ? device_bind_driver+0xd0/0xd0 [ 49.817140][ T22] ? kobject_uevent_env+0x29e/0x1150 [ 49.822410][ T22] ? kobject_uevent_env+0x2a8/0x1150 [ 49.827681][ T22] bus_probe_device+0x1e4/0x290 [ 49.832527][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 49.838407][ T22] device_add+0xae6/0x16f0 [ 49.843261][ T22] ? uevent_store+0x50/0x50 [ 49.847744][ T22] usb_new_device.cold+0x6a4/0xe79 [ 49.852832][ T22] hub_event+0x1b5c/0x3640 [ 49.857240][ T22] ? hub_port_debounce+0x260/0x260 [ 49.862341][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 49.867966][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 49.873230][ T22] process_one_work+0x92b/0x1530 [ 49.878173][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 49.883541][ T22] ? do_raw_spin_lock+0x11a/0x280 [ 49.888564][ T22] worker_thread+0x96/0xe20 [ 49.893045][ T22] ? process_one_work+0x1530/0x1530 [ 49.898221][ T22] kthread+0x318/0x420 [ 49.902265][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 49.907634][ T22] ret_from_fork+0x24/0x30 [ 49.915950][ T17] hso 5-1:0.15: Failed to find BULK IN ep [ 49.924575][ T101] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 49.925080][ T17] usb 5-1: USB disconnect, device number 2 [ 49.932111][ T101] CPU: 0 PID: 101 Comm: kworker/0:2 Not tainted 5.4.0-rc1+ #0 [ 49.938521][ T22] hso 1-1:0.15: Failed to find BULK IN ep [ 49.945329][ T101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.951212][ T22] kasan: CONFIG_KASAN_INLINE enabled [ 49.961079][ T101] Workqueue: usb_hub_wq hub_event [ 49.961086][ T101] Call Trace: [ 49.961104][ T101] dump_stack+0xca/0x13e [ 49.961120][ T101] sysfs_warn_dup.cold+0x1c/0x2d [ 49.961131][ T101] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 49.961145][ T101] sysfs_create_link+0x61/0xc0 [ 49.966437][ T22] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 49.971452][ T101] device_add+0x788/0x16f0 [ 49.971463][ T101] ? uevent_store+0x50/0x50 [ 49.971478][ T101] ? __init_waitqueue_head+0x31/0x90 [ 49.971495][ T101] tty_register_device_attr+0x341/0x6f0 [ 49.974754][ T22] general protection fault: 0000 [#1] SMP KASAN [ 49.978972][ T101] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 49.983879][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.4.0-rc1+ #0 [ 49.989919][ T101] ? mark_held_locks+0x9f/0xe0 [ 49.994647][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.002684][ T101] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.007067][ T22] Workqueue: usb_hub_wq hub_event [ 50.011541][ T101] ? tty_port_register_device_attr+0xb9/0x110 [ 50.016808][ T22] RIP: 0010:cdev_del+0x22/0x90 [ 50.022339][ T101] hso_serial_common_create+0x113/0x710 [ 50.028544][ T22] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 43 2c 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 [ 50.034058][ T101] ? lockdep_init_map+0x1b0/0x5e0 [ 50.041391][ T22] RSP: 0018:ffff8881d968f2c0 EFLAGS: 00010207 [ 50.046141][ T101] hso_probe+0xc93/0x1a46 [ 50.056165][ T22] RAX: dffffc0000000000 RBX: ffff8881d6253700 RCX: ffffffff820ee86e [ 50.061964][ T101] usb_probe_interface+0x305/0x7a0 [ 50.066965][ T22] RDX: 000000000000000c RSI: ffffffff8169efed RDI: 0000000000000064 [ 50.066979][ T22] RBP: 0000000000000000 R08: ffff8881da236000 R09: fffffbfff11b25ae [ 50.073041][ T101] ? usb_probe_device+0x100/0x100 [ 50.077771][ T22] R10: fffffbfff11b25ad R11: ffffffff88d92d6f R12: 0000000000000000 [ 50.077783][ T22] R13: ffff8881d629dd80 R14: 0000000000000000 R15: ffff8881d6425570 [ 50.083308][ T101] really_probe+0x281/0x6d0 [ 50.102889][ T22] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 50.107891][ T101] driver_probe_device+0x104/0x210 [ 50.113922][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.118227][ T101] __device_attach_driver+0x1c2/0x220 [ 50.126167][ T22] CR2: 00000000004c0388 CR3: 00000001d7eaf000 CR4: 00000000001406e0 [ 50.131254][ T101] ? driver_allows_async_probing+0x160/0x160 [ 50.139299][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.147772][ T101] bus_for_each_drv+0x162/0x1e0 [ 50.152848][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.160804][ T101] ? bus_rescan_devices+0x20/0x20 [ 50.168741][ T22] Call Trace: [ 50.173223][ T101] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.182123][ T22] tty_unregister_device+0x10d/0x1a0 [ 50.187201][ T101] ? lockdep_hardirqs_on+0x382/0x580 [ 50.193761][ T22] hso_probe.cold+0xc8/0x122 [ 50.199104][ T101] __device_attach+0x217/0x360 [ 50.207061][ T22] usb_probe_interface+0x305/0x7a0 [ 50.213010][ T101] ? device_bind_driver+0xd0/0xd0 [ 50.220954][ T22] ? usb_probe_device+0x100/0x100 [ 50.225784][ T101] ? kobject_uevent_env+0x29e/0x1150 [ 50.233736][ T22] really_probe+0x281/0x6d0 [ 50.238731][ T101] ? kobject_uevent_env+0x2a8/0x1150 [ 50.241988][ T22] driver_probe_device+0x104/0x210 [ 50.247763][ T101] bus_probe_device+0x1e4/0x290 [ 50.253015][ T22] __device_attach_driver+0x1c2/0x220 [ 50.258270][ T101] ? blocking_notifier_call_chain+0x54/0xa0 [ 50.262830][ T22] ? driver_allows_async_probing+0x160/0x160 [ 50.267560][ T101] device_add+0xae6/0x16f0 [ 50.272654][ T22] bus_for_each_drv+0x162/0x1e0 [ 50.277646][ T101] ? uevent_store+0x50/0x50 [ 50.282642][ T22] ? bus_rescan_devices+0x20/0x20 [ 50.287895][ T101] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.292367][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.297639][ T101] usb_set_configuration+0xdf6/0x1670 [ 50.302722][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 50.307541][ T101] generic_probe+0x9d/0xd5 [ 50.312880][ T22] __device_attach+0x217/0x360 [ 50.318741][ T101] usb_probe_device+0x99/0x100 [ 50.324691][ T22] ? device_bind_driver+0xd0/0xd0 [ 50.329086][ T101] ? usb_suspend+0x620/0x620 [ 50.333906][ T22] ? kobject_uevent_env+0x29e/0x1150 [ 50.338377][ T101] really_probe+0x281/0x6d0 [ 50.343387][ T22] ? kobject_uevent_env+0x2a8/0x1150 [ 50.349166][ T101] driver_probe_device+0x104/0x210 [ 50.354940][ T22] bus_probe_device+0x1e4/0x290 [ 50.360282][ T101] __device_attach_driver+0x1c2/0x220 [ 50.365537][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 50.369922][ T101] ? driver_allows_async_probing+0x160/0x160 [ 50.374653][ T22] device_add+0xae6/0x16f0 [ 50.379394][ T101] bus_for_each_drv+0x162/0x1e0 [ 50.384384][ T22] ? uevent_store+0x50/0x50 [ 50.388944][ T101] ? bus_rescan_devices+0x20/0x20 [ 50.394195][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.398667][ T101] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.403921][ T22] usb_set_configuration+0xdf6/0x1670 [ 50.409004][ T101] ? lockdep_hardirqs_on+0x382/0x580 [ 50.413823][ T22] generic_probe+0x9d/0xd5 [ 50.419173][ T101] __device_attach+0x217/0x360 [ 50.425035][ T22] usb_probe_device+0x99/0x100 [ 50.430982][ T101] ? device_bind_driver+0xd0/0xd0 [ 50.435378][ T22] ? usb_suspend+0x620/0x620 [ 50.440209][ T101] ? kobject_uevent_env+0x29e/0x1150 [ 50.444680][ T22] really_probe+0x281/0x6d0 [ 50.449674][ T101] ? kobject_uevent_env+0x2a8/0x1150 [ 50.455464][ T22] driver_probe_device+0x104/0x210 [ 50.461235][ T101] bus_probe_device+0x1e4/0x290 [ 50.466577][ T22] __device_attach_driver+0x1c2/0x220 [ 50.471830][ T101] ? blocking_notifier_call_chain+0x54/0xa0 [ 50.476217][ T22] ? driver_allows_async_probing+0x160/0x160 [ 50.480949][ T101] device_add+0xae6/0x16f0 [ 50.485682][ T22] bus_for_each_drv+0x162/0x1e0 [ 50.490675][ T101] ? uevent_store+0x50/0x50 [ 50.495236][ T22] ? bus_rescan_devices+0x20/0x20 [ 50.500501][ T101] usb_new_device.cold+0x6a4/0xe79 [ 50.504975][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.510229][ T101] hub_event+0x1b5c/0x3640 [ 50.515311][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 50.520141][ T101] ? hub_port_debounce+0x260/0x260 [ 50.525482][ T22] __device_attach+0x217/0x360 [ 50.531345][ T101] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 50.537293][ T22] ? device_bind_driver+0xd0/0xd0 [ 50.541699][ T101] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 50.546526][ T22] ? kobject_uevent_env+0x29e/0x1150 [ 50.551023][ T101] process_one_work+0x92b/0x1530 [ 50.556017][ T22] ? kobject_uevent_env+0x2a8/0x1150 [ 50.561109][ T101] ? pwq_dec_nr_in_flight+0x310/0x310 [ 50.566886][ T22] bus_probe_device+0x1e4/0x290 [ 50.571272][ T101] ? do_raw_spin_lock+0x11a/0x280 [ 50.576530][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 50.581609][ T101] worker_thread+0x96/0xe20 [ 50.586343][ T22] device_add+0xae6/0x16f0 [ 50.591857][ T101] ? process_one_work+0x1530/0x1530 [ 50.596849][ T22] ? uevent_store+0x50/0x50 [ 50.602105][ T101] kthread+0x318/0x420 [ 50.607362][ T22] usb_new_device.cold+0x6a4/0xe79 [ 50.612266][ T101] ? kthread_create_on_node+0xf0/0xf0 [ 50.617518][ T22] hub_event+0x1b5c/0x3640 [ 50.622879][ T101] ret_from_fork+0x24/0x30 [ 50.627699][ T22] ? hub_port_debounce+0x260/0x260 [ 50.633281][ T5] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 50.638689][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 50.638697][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 50.638712][ T22] process_one_work+0x92b/0x1530 [ 50.643188][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.4.0-rc1+ #0 [ 50.647578][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 50.652740][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.657336][ T22] ? do_raw_spin_lock+0x11a/0x280 [ 50.661382][ T5] Workqueue: usb_hub_wq hub_event [ 50.666470][ T22] worker_thread+0x96/0xe20 [ 50.671803][ T5] Call Trace: [ 50.676193][ T22] ? process_one_work+0x1530/0x1530 [ 50.680581][ T5] dump_stack+0xca/0x13e [ 50.685658][ T22] kthread+0x318/0x420 [ 50.693086][ T5] sysfs_warn_dup.cold+0x1c/0x2d [ 50.698599][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 50.703875][ T5] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 50.708791][ T22] ret_from_fork+0x24/0x30 [ 50.716043][ T5] sysfs_create_link+0x61/0xc0 [ 50.721378][ T22] Modules linked in: [ 50.731417][ T5] device_add+0x788/0x16f0 [ 50.731431][ T5] ? uevent_store+0x50/0x50 [ 50.736571][ T22] ---[ end trace c6a3ad64e953b3c0 ]--- [ 50.741432][ T5] ? __init_waitqueue_head+0x31/0x90 [ 50.741443][ T5] tty_register_device_attr+0x341/0x6f0 [ 50.741453][ T5] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 50.741464][ T5] ? lock_downgrade+0x6e0/0x6e0 [ 50.741472][ T5] ? lock_acquire+0x127/0x320 [ 50.741483][ T5] ? hso_serial_common_create+0x4f/0x710 [ 50.741491][ T5] ? trace_hardirqs_on+0x55/0x1e0 [ 50.741500][ T5] ? tty_port_register_device_attr+0xb9/0x110 [ 50.741507][ T5] hso_serial_common_create+0x113/0x710 [ 50.741516][ T5] ? lockdep_init_map+0xcb/0x5e0 [ 50.741523][ T5] hso_probe+0xc93/0x1a46 [ 50.741535][ T5] usb_probe_interface+0x305/0x7a0 [ 50.741545][ T5] ? usb_probe_device+0x100/0x100 [ 50.741553][ T5] really_probe+0x281/0x6d0 [ 50.741562][ T5] driver_probe_device+0x104/0x210 [ 50.741571][ T5] __device_attach_driver+0x1c2/0x220 [ 50.741580][ T5] ? driver_allows_async_probing+0x160/0x160 [ 50.741587][ T5] bus_for_each_drv+0x162/0x1e0 [ 50.741596][ T5] ? bus_rescan_devices+0x20/0x20 [ 50.741604][ T5] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.741613][ T5] ? lockdep_hardirqs_on+0x382/0x580 [ 50.741621][ T5] __device_attach+0x217/0x360 [ 50.741629][ T5] ? device_bind_driver+0xd0/0xd0 [ 50.741638][ T5] ? kobject_uevent_env+0x29e/0x1150 [ 50.741645][ T5] ? kobject_uevent_env+0x2a8/0x1150 [ 50.741653][ T5] bus_probe_device+0x1e4/0x290 [ 50.741665][ T5] ? blocking_notifier_call_chain+0x54/0xa0 [ 50.741672][ T5] device_add+0xae6/0x16f0 [ 50.741679][ T5] ? uevent_store+0x50/0x50 [ 50.741687][ T5] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.741695][ T5] usb_set_configuration+0xdf6/0x1670 [ 50.741707][ T5] generic_probe+0x9d/0xd5 [ 50.741716][ T5] usb_probe_device+0x99/0x100 [ 50.741724][ T5] ? usb_suspend+0x620/0x620 [ 50.741732][ T5] really_probe+0x281/0x6d0 [ 50.741740][ T5] driver_probe_device+0x104/0x210 [ 50.741748][ T5] __device_attach_driver+0x1c2/0x220 [ 50.741757][ T5] ? driver_allows_async_probing+0x160/0x160 [ 50.741765][ T5] bus_for_each_drv+0x162/0x1e0 [ 50.741772][ T5] ? bus_rescan_devices+0x20/0x20 [ 50.741779][ T5] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.741788][ T5] ? lockdep_hardirqs_on+0x382/0x580 [ 50.741795][ T5] __device_attach+0x217/0x360 [ 50.741804][ T5] ? device_bind_driver+0xd0/0xd0 [ 50.741811][ T5] ? kobject_uevent_env+0x29e/0x1150 [ 50.741817][ T5] ? kobject_uevent_env+0x2a8/0x1150 [ 50.741825][ T5] bus_probe_device+0x1e4/0x290 [ 50.741834][ T5] ? blocking_notifier_call_chain+0x54/0xa0 [ 50.741840][ T5] device_add+0xae6/0x16f0 [ 50.741849][ T5] ? uevent_store+0x50/0x50 [ 50.741858][ T5] usb_new_device.cold+0x6a4/0xe79 [ 50.741867][ T5] hub_event+0x1b5c/0x3640 [ 50.741878][ T5] ? hub_port_debounce+0x260/0x260 [ 50.741894][ T5] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 50.746390][ T22] RIP: 0010:cdev_del+0x22/0x90 [ 50.749664][ T5] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 50.749676][ T5] process_one_work+0x92b/0x1530 [ 50.749687][ T5] ? pwq_dec_nr_in_flight+0x310/0x310 [ 50.749701][ T5] worker_thread+0x96/0xe20 [ 50.754876][ T22] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 43 2c 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 [ 50.759087][ T5] ? process_one_work+0x1530/0x1530 [ 50.759096][ T5] kthread+0x318/0x420 [ 50.759109][ T5] ? kthread_create_on_node+0xf0/0xf0 [ 50.763147][ T22] RSP: 0018:ffff8881d968f2c0 EFLAGS: 00010207 [ 50.768076][ T5] ret_from_fork+0x24/0x30 [ 50.771564][ T1734] hso 3-1:0.15: Failed to find BULK IN ep [ 50.773442][ T22] RAX: dffffc0000000000 RBX: ffff8881d6253700 RCX: ffffffff820ee86e [ 50.786360][ T1734] usb 3-1: USB disconnect, device number 2 [ 50.788734][ T22] RDX: 000000000000000c RSI: ffffffff8169efed RDI: 0000000000000064 [ 50.788745][ T22] RBP: 0000000000000000 R08: ffff8881da236000 R09: fffffbfff11b25ae [ 50.797043][ T5] hso 4-1:0.15: Failed to find BULK IN ep [ 50.801533][ T22] R10: fffffbfff11b25ad R11: ffffffff88d92d6f R12: 0000000000000000 [ 50.807039][ T5] kasan: CONFIG_KASAN_INLINE enabled [ 50.812245][ T22] R13: ffff8881d629dd80 R14: 0000000000000000 R15: ffff8881d6425570 [ 50.812259][ T22] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 50.817779][ T5] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 50.817790][ T5] general protection fault: 0000 [#2] SMP KASAN [ 50.817804][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Tainted: G D 5.4.0-rc1+ #0 [ 50.823322][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.828148][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.828165][ T5] Workqueue: usb_hub_wq hub_event [ 50.832826][ T22] CR2: 00000000004c0388 CR3: 00000001d7eaf000 CR4: 00000000001406e0 [ 50.838433][ T5] RIP: 0010:cdev_del+0x22/0x90 [ 50.838443][ T5] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 43 2c 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 [ 50.838453][ T5] RSP: 0018:ffff8881da1c72c0 EFLAGS: 00010207 [ 50.843451][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.849495][ T5] RAX: dffffc0000000000 RBX: ffff8881d6253700 RCX: ffffffff820ee86e [ 50.849501][ T5] RDX: 000000000000000c RSI: ffffffff8169efed RDI: 0000000000000064 [ 50.849507][ T5] RBP: 0000000000000000 R08: ffff8881da186000 R09: ffffed103b4688b7 [ 50.849512][ T5] R10: ffffed103b4688b6 R11: ffff8881da3445b3 R12: 0000000000000000 [ 50.849523][ T5] R13: ffff8881d629dd80 R14: 0000000000000000 R15: ffff8881d7649170 [ 50.855038][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.859940][ T5] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 50.859949][ T5] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.859959][ T5] CR2: 0000000001c29fd0 CR3: 00000001d4415000 CR4: 00000000001406f0 [ 50.864255][ T22] Kernel panic - not syncing: Fatal exception [ 50.869336][ T5] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.398164][ T5] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.406112][ T5] Call Trace: [ 51.409389][ T5] tty_unregister_device+0x10d/0x1a0 [ 51.414658][ T5] hso_probe.cold+0xc8/0x122 [ 51.419231][ T5] usb_probe_interface+0x305/0x7a0 [ 51.424321][ T5] ? usb_probe_device+0x100/0x100 [ 51.429325][ T5] really_probe+0x281/0x6d0 [ 51.433804][ T5] driver_probe_device+0x104/0x210 [ 51.438894][ T5] __device_attach_driver+0x1c2/0x220 [ 51.444242][ T5] ? driver_allows_async_probing+0x160/0x160 [ 51.450200][ T5] bus_for_each_drv+0x162/0x1e0 [ 51.455032][ T5] ? bus_rescan_devices+0x20/0x20 [ 51.460034][ T5] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 51.465820][ T5] ? lockdep_hardirqs_on+0x382/0x580 [ 51.471094][ T5] __device_attach+0x217/0x360 [ 51.475838][ T5] ? device_bind_driver+0xd0/0xd0 [ 51.480842][ T5] ? kobject_uevent_env+0x29e/0x1150 [ 51.486105][ T5] ? kobject_uevent_env+0x2a8/0x1150 [ 51.491366][ T5] bus_probe_device+0x1e4/0x290 [ 51.496194][ T5] ? blocking_notifier_call_chain+0x54/0xa0 [ 51.502060][ T5] device_add+0xae6/0x16f0 [ 51.506455][ T5] ? uevent_store+0x50/0x50 [ 51.510933][ T5] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 51.516714][ T5] usb_set_configuration+0xdf6/0x1670 [ 51.522061][ T5] generic_probe+0x9d/0xd5 [ 51.526456][ T5] usb_probe_device+0x99/0x100 [ 51.531194][ T5] ? usb_suspend+0x620/0x620 [ 51.535757][ T5] really_probe+0x281/0x6d0 [ 51.540237][ T5] driver_probe_device+0x104/0x210 [ 51.545322][ T5] __device_attach_driver+0x1c2/0x220 [ 51.550669][ T5] ? driver_allows_async_probing+0x160/0x160 [ 51.556623][ T5] bus_for_each_drv+0x162/0x1e0 [ 51.561452][ T5] ? bus_rescan_devices+0x20/0x20 [ 51.566452][ T5] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 51.572255][ T5] ? lockdep_hardirqs_on+0x382/0x580 [ 51.577538][ T5] __device_attach+0x217/0x360 [ 51.582293][ T5] ? device_bind_driver+0xd0/0xd0 [ 51.587304][ T5] ? kobject_uevent_env+0x29e/0x1150 [ 51.592568][ T5] ? kobject_uevent_env+0x2a8/0x1150 [ 51.597831][ T5] bus_probe_device+0x1e4/0x290 [ 51.602664][ T5] ? blocking_notifier_call_chain+0x54/0xa0 [ 51.608530][ T5] device_add+0xae6/0x16f0 [ 51.612923][ T5] ? uevent_store+0x50/0x50 [ 51.617404][ T5] usb_new_device.cold+0x6a4/0xe79 [ 51.622491][ T5] hub_event+0x1b5c/0x3640 [ 51.626886][ T5] ? hub_port_debounce+0x260/0x260 [ 51.631975][ T5] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 51.637493][ T5] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 51.642757][ T5] process_one_work+0x92b/0x1530 [ 51.647760][ T5] ? pwq_dec_nr_in_flight+0x310/0x310 [ 51.653118][ T5] worker_thread+0x96/0xe20 [ 51.657600][ T5] ? process_one_work+0x1530/0x1530 [ 51.662771][ T5] kthread+0x318/0x420 [ 51.666830][ T5] ? kthread_create_on_node+0xf0/0xf0 [ 51.672178][ T5] ret_from_fork+0x24/0x30 [ 51.676564][ T5] Modules linked in: [ 51.681162][ T22] Kernel Offset: disabled [ 51.685481][ T22] Rebooting in 86400 seconds..