[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[ 12.371388][ T1669] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[ 13.494578][ T1702] random: sshd: uninitialized urandom read (32 bytes read)
[ 13.502061][ C1] random: crng init done
Debian GNU/Linux 7 syzkaller ttyS0
Warning: Permanently added '10.128.10.11' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [ 19.947670][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[ 20.187635][ T12] usb 1-1: Using ep0 maxpacket: 16
[ 20.307672][ T12] usb 1-1: config 0 has an invalid interface number: 128 but max is 0
[ 20.315850][ T12] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config
[ 20.325913][ T12] usb 1-1: config 0 has no interface number 0
[ 20.332139][ T12] usb 1-1: config 0 interface 128 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7
[ 20.343164][ T12] usb 1-1: New USB device found, idVendor=12cf, idProduct=7111, bcdDevice=48.08
[ 20.352265][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 20.361320][ T12] usb 1-1: config 0 descriptor??
[ 20.617719][ T12] radio-si470x 1-1:0.128: DeviceID=0x50ec ChipID=0xd381
[ 20.837680][ T12] radio-si470x 1-1:0.128: software version 80, hardware version 236
executing program
[ 21.057673][ T12] radio-si470x 1-1:0.128: si470x_set_report: usb_control_msg returned -71
[ 21.077649][ C0] radio-si470x 1-1:0.128: non-zero urb status (-71)
[ 21.084409][ T12] radio-si470x 1-1:0.128: si470x_set_report: usb_control_msg returned -71
[ 21.093142][ T12] radio-si470x: probe of 1-1:0.128 failed with error -22
[ 21.100248][ C0] ==================================================================
[ 21.100281][ C0] BUG: KASAN: use-after-free in si470x_int_in_callback.cold+0x27/0xbe
[ 21.100287][ C0] Read of size 8 at addr ffff8881d810bdb0 by task kworker/0:1/12
[ 21.100289][ C0]
[ 21.100296][ C0] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.3.0-rc5+ #28
[ 21.100300][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 21.100308][ C0] Workqueue: usb_hub_wq hub_event
[ 21.100312][ C0] Call Trace:
[ 21.100315][ C0]
[ 21.100323][ C0] dump_stack+0xca/0x13e
[ 21.100330][ C0] ? si470x_int_in_callback.cold+0x27/0xbe
[ 21.100336][ C0] ? si470x_int_in_callback.cold+0x27/0xbe
[ 21.100344][ C0] print_address_description+0x6a/0x32c
[ 21.100350][ C0] ? si470x_int_in_callback.cold+0x27/0xbe
[ 21.100356][ C0] ? si470x_int_in_callback.cold+0x27/0xbe
[ 21.100362][ C0] __kasan_report.cold+0x1a/0x33
[ 21.100369][ C0] ? si470x_int_in_callback.cold+0x27/0xbe
[ 21.100374][ C0] kasan_report+0xe/0x12
[ 21.100385][ C0] si470x_int_in_callback.cold+0x27/0xbe
[ 21.100392][ C0] ? usb_hcd_unmap_urb_for_dma+0x105/0x9b0
[ 21.100398][ C0] __usb_hcd_giveback_urb+0x1f2/0x470
[ 21.100404][ C0] usb_hcd_giveback_urb+0x368/0x420
[ 21.100412][ C0] dummy_timer+0x120f/0x2fa2
[ 21.100420][ C0] ? __lock_acquire+0x145e/0x3b50
[ 21.100426][ C0] ? find_held_lock+0x2d/0x110
[ 21.100433][ C0] ? debug_object_deactivate+0x1d9/0x320
[ 21.100439][ C0] ? mark_held_locks+0xe0/0xe0
[ 21.100445][ C0] ? lock_downgrade+0x6e0/0x6e0
[ 21.100450][ C0] ? lock_acquire+0x127/0x320
[ 21.100456][ C0] ? dummy_udc_probe+0x930/0x930
[ 21.100475][ C0] call_timer_fn+0x179/0x650
[ 21.100480][ C0] ? dummy_udc_probe+0x930/0x930
[ 21.100486][ C0] ? msleep_interruptible+0x130/0x130
[ 21.100491][ C0] ? do_raw_spin_lock+0x11a/0x280
[ 21.100496][ C0] ? mark_held_locks+0x9f/0xe0
[ 21.100503][ C0] ? _raw_spin_unlock_irq+0x24/0x30
[ 21.100508][ C0] ? dummy_udc_probe+0x930/0x930
[ 21.100514][ C0] run_timer_softirq+0x5cc/0x14b0
[ 21.100519][ C0] ? add_timer+0x7a0/0x7a0
[ 21.100524][ C0] ? mark_lock+0xbc/0x1130
[ 21.100530][ C0] __do_softirq+0x221/0x912
[ 21.100538][ C0] irq_exit+0x178/0x1a0
[ 21.100543][ C0] smp_apic_timer_interrupt+0x12f/0x500
[ 21.100548][ C0] apic_timer_interrupt+0xf/0x20
[ 21.100551][ C0]
[ 21.100556][ C0] RIP: 0010:console_unlock+0xa2a/0xc40
[ 21.100562][ C0] Code: 00 89 ee 48 c7 c7 20 89 d3 86 e8 61 ad 03 00 65 ff 0d 72 b5 d9 7e e9 db f9 ff ff e8 80 a0 15 00 e8 2b ca 1a 00 ff 74 24 30 9d 18 fe ff ff e8 6c a0 15 00 48 8d 7d 08 48 89 f8 48 c1 e8 03 42
[ 21.100566][ C0] RSP: 0018:ffff8881da20f200 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[ 21.100572][ C0] RAX: 0000000000000007 RBX: 0000000000000200 RCX: 0000000000000006
[ 21.100575][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881da1fa044
[ 21.100578][ C0] RBP: 0000000000000000 R08: ffff8881da1f9800 R09: fffffbfff11ad791
[ 21.100582][ C0] R10: fffffbfff11ad790 R11: ffffffff88d6bc87 R12: 000000000000004e
[ 21.100585][ C0] R13: dffffc0000000000 R14: ffffffff829090d0 R15: ffffffff87077430
[ 21.100592][ C0] ? netconsole_netdev_event+0x2a0/0x2a0
[ 21.100597][ C0] vprintk_emit+0x171/0x3e0
[ 21.100602][ C0] vprintk_func+0x75/0x113
[ 21.100607][ C0] printk+0xba/0xed
[ 21.100612][ C0] ? kmsg_dump_rewind_nolock+0xd9/0xd9
[ 21.100620][ C0] really_probe.cold+0x69/0x1f6
[ 21.100625][ C0] driver_probe_device+0x101/0x1b0
[ 21.100631][ C0] __device_attach_driver+0x1c2/0x220
[ 21.100637][ C0] ? driver_allows_async_probing+0x160/0x160
[ 21.100643][ C0] bus_for_each_drv+0x162/0x1e0
[ 21.100648][ C0] ? bus_rescan_devices+0x20/0x20
[ 21.100654][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50
[ 21.100659][ C0] ? lockdep_hardirqs_on+0x379/0x580
[ 21.100665][ C0] __device_attach+0x217/0x360
[ 21.100670][ C0] ? device_bind_driver+0xd0/0xd0
[ 21.100676][ C0] ? kobject_uevent_env+0x29e/0x1160
[ 21.100682][ C0] ? kobject_uevent_env+0x2a8/0x1160
[ 21.100687][ C0] bus_probe_device+0x1e4/0x290
[ 21.100694][ C0] ? blocking_notifier_call_chain+0x54/0xa0
[ 21.100699][ C0] device_add+0xae6/0x16f0
[ 21.100704][ C0] ? uevent_store+0x50/0x50
[ 21.100710][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50
[ 21.100716][ C0] usb_set_configuration+0xdf6/0x1670
[ 21.100723][ C0] generic_probe+0x9d/0xd5
[ 21.100729][ C0] usb_probe_device+0x99/0x100
[ 21.100733][ C0] ? usb_suspend+0x620/0x620
[ 21.100739][ C0] really_probe+0x281/0x6d0
[ 21.100745][ C0] driver_probe_device+0x101/0x1b0
[ 21.100750][ C0] __device_attach_driver+0x1c2/0x220
[ 21.100757][ C0] ? driver_allows_async_probing+0x160/0x160
[ 21.100762][ C0] bus_for_each_drv+0x162/0x1e0
[ 21.100767][ C0] ? bus_rescan_devices+0x20/0x20
[ 21.100773][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50
[ 21.100778][ C0] ? lockdep_hardirqs_on+0x379/0x580
[ 21.100784][ C0] __device_attach+0x217/0x360
[ 21.100790][ C0] ? device_bind_driver+0xd0/0xd0
[ 21.100795][ C0] ? kobject_uevent_env+0x29e/0x1160
[ 21.100801][ C0] ? kobject_uevent_env+0x2a8/0x1160
[ 21.100806][ C0] bus_probe_device+0x1e4/0x290
[ 21.100812][ C0] ? blocking_notifier_call_chain+0x54/0xa0
[ 21.100817][ C0] device_add+0xae6/0x16f0
[ 21.100821][ C0] ? uevent_store+0x50/0x50
[ 21.100827][ C0] usb_new_device.cold+0x6a4/0xe79
[ 21.100832][ C0] hub_event+0x1b5c/0x3640
[ 21.100838][ C0] ? hub_port_debounce+0x260/0x260
[ 21.100845][ C0] process_one_work+0x92b/0x1530
[ 21.100851][ C0] ? pwq_dec_nr_in_flight+0x310/0x310
[ 21.100856][ C0] ? do_raw_spin_lock+0x11a/0x280
[ 21.100862][ C0] worker_thread+0x96/0xe20
[ 21.100867][ C0] ? process_one_work+0x1530/0x1530
[ 21.100873][ C0] kthread+0x318/0x420
[ 21.100878][ C0] ? kthread_create_on_node+0xf0/0xf0
[ 21.100888][ C0] ret_from_fork+0x24/0x30
[ 21.100891][ C0]
[ 21.100894][ C0] Allocated by task 12:
[ 21.100899][ C0] save_stack+0x1b/0x80
[ 21.100905][ C0] __kasan_kmalloc.constprop.0+0xbf/0xd0
[ 21.100910][ C0] si470x_usb_driver_probe+0x51/0xf50
[ 21.100914][ C0] usb_probe_interface+0x305/0x7a0
[ 21.100919][ C0] really_probe+0x281/0x6d0
[ 21.100925][ C0] driver_probe_device+0x101/0x1b0
[ 21.100930][ C0] __device_attach_driver+0x1c2/0x220
[ 21.100935][ C0] bus_for_each_drv+0x162/0x1e0
[ 21.100940][ C0] __device_attach+0x217/0x360
[ 21.100945][ C0] bus_probe_device+0x1e4/0x290
[ 21.100949][ C0] device_add+0xae6/0x16f0
[ 21.100955][ C0] usb_set_configuration+0xdf6/0x1670
[ 21.100963][ C0] generic_probe+0x9d/0xd5
[ 21.100970][ C0] usb_probe_device+0x99/0x100
[ 21.100978][ C0] really_probe+0x281/0x6d0
[ 21.100986][ C0] driver_probe_device+0x101/0x1b0
[ 21.100995][ C0] __device_attach_driver+0x1c2/0x220
[ 21.101004][ C0] bus_for_each_drv+0x162/0x1e0
[ 21.101012][ C0] __device_attach+0x217/0x360
[ 21.101021][ C0] bus_probe_device+0x1e4/0x290
[ 21.101028][ C0] device_add+0xae6/0x16f0
[ 21.101035][ C0] usb_new_device.cold+0x6a4/0xe79
[ 21.101040][ C0] hub_event+0x1b5c/0x3640
[ 21.101045][ C0] process_one_work+0x92b/0x1530
[ 21.101050][ C0] worker_thread+0x96/0xe20
[ 21.101055][ C0] kthread+0x318/0x420
[ 21.101060][ C0] ret_from_fork+0x24/0x30
[ 21.101061][ C0]
[ 21.101064][ C0] Freed by task 12:
[ 21.101069][ C0] save_stack+0x1b/0x80
[ 21.101074][ C0] __kasan_slab_free+0x130/0x180
[ 21.101078][ C0] kfree+0xe4/0x2f0
[ 21.101083][ C0] si470x_usb_driver_probe+0xb27/0xf50
[ 21.101088][ C0] usb_probe_interface+0x305/0x7a0
[ 21.101093][ C0] really_probe+0x281/0x6d0
[ 21.101098][ C0] driver_probe_device+0x101/0x1b0
[ 21.101103][ C0] __device_attach_driver+0x1c2/0x220
[ 21.101108][ C0] bus_for_each_drv+0x162/0x1e0
[ 21.101113][ C0] __device_attach+0x217/0x360
[ 21.101118][ C0] bus_probe_device+0x1e4/0x290
[ 21.101122][ C0] device_add+0xae6/0x16f0
[ 21.101128][ C0] usb_set_configuration+0xdf6/0x1670
[ 21.101133][ C0] generic_probe+0x9d/0xd5
[ 21.101137][ C0] usb_probe_device+0x99/0x100
[ 21.101142][ C0] really_probe+0x281/0x6d0
[ 21.101147][ C0] driver_probe_device+0x101/0x1b0
[ 21.101153][ C0] __device_attach_driver+0x1c2/0x220
[ 21.101158][ C0] bus_for_each_drv+0x162/0x1e0
[ 21.101163][ C0] __device_attach+0x217/0x360
[ 21.101168][ C0] bus_probe_device+0x1e4/0x290
[ 21.101172][ C0] device_add+0xae6/0x16f0
[ 21.101177][ C0] usb_new_device.cold+0x6a4/0xe79
[ 21.101181][ C0] hub_event+0x1b5c/0x3640
[ 21.101186][ C0] process_one_work+0x92b/0x1530
[ 21.101191][ C0] worker_thread+0x96/0xe20
[ 21.101196][ C0] kthread+0x318/0x420
[ 21.101201][ C0] ret_from_fork+0x24/0x30
[ 21.101202][ C0]
[ 21.101207][ C0] The buggy address belongs to the object at ffff8881d810b300
[ 21.101207][ C0] which belongs to the cache kmalloc-4k of size 4096
[ 21.101212][ C0] The buggy address is located 2736 bytes inside of
[ 21.101212][ C0] 4096-byte region [ffff8881d810b300, ffff8881d810c300)
[ 21.101214][ C0] The buggy address belongs to the page:
[ 21.101219][ C0] page:ffffea0007604200 refcount:1 mapcount:0 mapping:ffff8881da00c280 index:0x0 compound_mapcount: 0
[ 21.101227][ C0] flags: 0x200000000010200(slab|head)
[ 21.101236][ C0] raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da00c280
[ 21.101243][ C0] raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000
[ 21.101245][ C0] page dumped because: kasan: bad access detected
[ 21.101247][ C0]
[ 21.101249][ C0] Memory state around the buggy address:
[ 21.101253][ C0] ffff8881d810bc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 21.101258][ C0] ffff8881d810bd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 21.101262][ C0] >ffff8881d810bd80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 21.101264][ C0] ^
[ 21.101268][ C0] ffff8881d810be00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 21.101273][ C0] ffff8881d810be80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 21.101275][ C0] ==================================================================
[ 21.101277][ C0] Disabling lock debugging due to kernel taint
[ 21.101280][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 21.101286][ C0] CPU: 0 PID: 12 Comm: kworker/0:1 Tainted: G B 5.3.0-rc5+ #28
[ 21.101288][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 21.101293][ C0] Workqueue: usb_hub_wq hub_event
[ 21.101295][ C0] Call Trace:
[ 21.101297][ C0]
[ 21.101302][ C0] dump_stack+0xca/0x13e
[ 21.101307][ C0] panic+0x2a3/0x6da
[ 21.101312][ C0] ? add_taint.cold+0x16/0x16
[ 21.101317][ C0] ? print_shadow_for_address+0xb8/0x114
[ 21.101324][ C0] ? trace_hardirqs_off+0x50/0x1d0
[ 21.101329][ C0] ? si470x_int_in_callback.cold+0x27/0xbe
[ 21.101333][ C0] end_report+0x43/0x49
[ 21.101339][ C0] ? si470x_int_in_callback.cold+0x27/0xbe
[ 21.101344][ C0] __kasan_report.cold+0xd/0x33
[ 21.101349][ C0] ? si470x_int_in_callback.cold+0x27/0xbe
[ 21.101354][ C0] kasan_report+0xe/0x12
[ 21.101359][ C0] si470x_int_in_callback.cold+0x27/0xbe
[ 21.101364][ C0] ? usb_hcd_unmap_urb_for_dma+0x105/0x9b0
[ 21.101370][ C0] __usb_hcd_giveback_urb+0x1f2/0x470
[ 21.101375][ C0] usb_hcd_giveback_urb+0x368/0x420
[ 21.101384][ C0] dummy_timer+0x120f/0x2fa2
[ 21.101389][ C0] ? __lock_acquire+0x145e/0x3b50
[ 21.101394][ C0] ? find_held_lock+0x2d/0x110
[ 21.101399][ C0] ? debug_object_deactivate+0x1d9/0x320
[ 21.101404][ C0] ? mark_held_locks+0xe0/0xe0
[ 21.101409][ C0] ? lock_downgrade+0x6e0/0x6e0
[ 21.101413][ C0] ? lock_acquire+0x127/0x320
[ 21.101418][ C0] ? dummy_udc_probe+0x930/0x930
[ 21.101423][ C0] call_timer_fn+0x179/0x650
[ 21.101428][ C0] ? dummy_udc_probe+0x930/0x930
[ 21.101433][ C0] ? msleep_interruptible+0x130/0x130
[ 21.101437][ C0] ? do_raw_spin_lock+0x11a/0x280
[ 21.101442][ C0] ? mark_held_locks+0x9f/0xe0
[ 21.101447][ C0] ? _raw_spin_unlock_irq+0x24/0x30
[ 21.101452][ C0] ? dummy_udc_probe+0x930/0x930
[ 21.101456][ C0] run_timer_softirq+0x5cc/0x14b0
[ 21.101461][ C0] ? add_timer+0x7a0/0x7a0
[ 21.101466][ C0] ? mark_lock+0xbc/0x1130
[ 21.101488][ C0] __do_softirq+0x221/0x912
[ 21.101493][ C0] irq_exit+0x178/0x1a0
[ 21.101498][ C0] smp_apic_timer_interrupt+0x12f/0x500
[ 21.101503][ C0] apic_timer_interrupt+0xf/0x20
[ 21.101505][ C0]
[ 21.101510][ C0] RIP: 0010:console_unlock+0xa2a/0xc40
[ 21.101516][ C0] Code: 00 89 ee 48 c7 c7 20 89 d3 86 e8 61 ad 03 00 65 ff 0d 72 b5 d9 7e e9 db f9 ff ff e8 80 a0 15 00 e8 2b ca 1a 00 ff 74 24 30 9d 18 fe ff ff e8 6c a0 15 00 48 8d 7d 08 48 89 f8 48 c1 e8 03 42
[ 21.101518][ C0] RSP: 0018:ffff8881da20f200 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[ 21.101523][ C0] RAX: 0000000000000007 RBX: 0000000000000200 RCX: 0000000000000006
[ 21.101527][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881da1fa044
[ 21.101530][ C0] RBP: 0000000000000000 R08: ffff8881da1f9800 R09: fffffbfff11ad791
[ 21.101533][ C0] R10: fffffbfff11ad790 R11: ffffffff88d6bc87 R12: 000000000000004e
[ 21.101536][ C0] R13: dffffc0000000000 R14: ffffffff829090d0 R15: ffffffff87077430
[ 21.101542][ C0] ? netconsole_netdev_event+0x2a0/0x2a0
[ 21.101547][ C0] vprintk_emit+0x171/0x3e0
[ 21.101552][ C0] vprintk_func+0x75/0x113
[ 21.101556][ C0] printk+0xba/0xed
[ 21.101561][ C0] ? kmsg_dump_rewind_nolock+0xd9/0xd9
[ 21.101567][ C0] really_probe.cold+0x69/0x1f6
[ 21.101573][ C0] driver_probe_device+0x101/0x1b0
[ 21.101579][ C0] __device_attach_driver+0x1c2/0x220
[ 21.101585][ C0] ? driver_allows_async_probing+0x160/0x160
[ 21.101590][ C0] bus_for_each_drv+0x162/0x1e0
[ 21.101595][ C0] ? bus_rescan_devices+0x20/0x20
[ 21.101601][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50
[ 21.101606][ C0] ? lockdep_hardirqs_on+0x379/0x580
[ 21.101612][ C0] __device_attach+0x217/0x360
[ 21.101617][ C0] ? device_bind_driver+0xd0/0xd0
[ 21.101623][ C0] ? kobject_uevent_env+0x29e/0x1160
[ 21.101628][ C0] ? kobject_uevent_env+0x2a8/0x1160
[ 21.101634][ C0] bus_probe_device+0x1e4/0x290
[ 21.101639][ C0] ? blocking_notifier_call_chain+0x54/0xa0
[ 21.101644][ C0] device_add+0xae6/0x16f0
[ 21.101648][ C0] ? uevent_store+0x50/0x50
[ 21.101654][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50
[ 21.101660][ C0] usb_set_configuration+0xdf6/0x1670
[ 21.101666][ C0] generic_probe+0x9d/0xd5
[ 21.101671][ C0] usb_probe_device+0x99/0x100
[ 21.101675][ C0] ? usb_suspend+0x620/0x620
[ 21.101681][ C0] really_probe+0x281/0x6d0
[ 21.101686][ C0] driver_probe_device+0x101/0x1b0
[ 21.101692][ C0] __device_attach_driver+0x1c2/0x220
[ 21.101698][ C0] ? driver_allows_async_probing+0x160/0x160
[ 21.101703][ C0] bus_for_each_drv+0x162/0x1e0
[ 21.101708][ C0] ? bus_rescan_devices+0x20/0x20
[ 21.101714][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50
[ 21.101720][ C0] ? lockdep_hardirqs_on+0x379/0x580
[ 21.101725][ C0] __device_attach+0x217/0x360
[ 21.101730][ C0] ? device_bind_driver+0xd0/0xd0
[ 21.101736][ C0] ? kobject_uevent_env+0x29e/0x1160
[ 21.101742][ C0] ? kobject_uevent_env+0x2a8/0x1160
[ 21.101747][ C0] bus_probe_device+0x1e4/0x290
[ 21.101752][ C0] ? blocking_notifier_call_chain+0x54/0xa0
[ 21.101757][ C0] device_add+0xae6/0x16f0
[ 21.101762][ C0] ? uevent_store+0x50/0x50
[ 21.101767][ C0] usb_new_device.cold+0x6a4/0xe79
[ 21.101772][ C0] hub_event+0x1b5c/0x3640
[ 21.101778][ C0] ? hub_port_debounce+0x260/0x260
[ 21.101783][ C0] process_one_work+0x92b/0x1530
[ 21.101789][ C0] ? pwq_dec_nr_in_flight+0x310/0x310
[ 21.101794][ C0] ? do_raw_spin_lock+0x11a/0x280
[ 21.101799][ C0] worker_thread+0x96/0xe20
[ 21.101805][ C0] ? process_one_work+0x1530/0x1530
[ 21.101810][ C0] kthread+0x318/0x420
[ 21.101815][ C0] ? kthread_create_on_node+0xf0/0xf0
[ 21.101820][ C0] ret_from_fork+0x24/0x30
[ 21.102315][ C0] Kernel Offset: disabled
[ 22.651699][ C0] Rebooting in 86400 seconds..