[info] Using makefile-style concurrent boot in runlevel 2. [ 14.956032][ C1] random: crng init done [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] 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 '10.128.0.176' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 47.726394][ T107] usb 1-1: new low-speed USB device number 2 using dummy_hcd [ 48.086477][ T107] usb 1-1: config 0 has an invalid interface number: 241 but max is 0 [ 48.094745][ T107] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 48.104894][ T107] usb 1-1: config 0 has no interface number 0 [ 48.111054][ T107] usb 1-1: config 0 interface 241 altsetting 0 endpoint 0x81 is Bulk; changing to Interrupt [ 48.121199][ T107] usb 1-1: New USB device found, idVendor=10c5, idProduct=819a, bcdDevice=75.d8 [ 48.130298][ T107] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 48.139600][ T107] usb 1-1: config 0 descriptor?? [ 48.376461][ T107] radio-si470x 1-1:0.241: DeviceID=0xebd9 ChipID=0xd081 [ 48.576446][ T107] radio-si470x 1-1:0.241: software version 235, hardware version 217 [ 48.616388][ C0] radio-si470x 1-1:0.241: non-zero urb status (-71) [ 48.636381][ C0] radio-si470x 1-1:0.241: non-zero urb status (-71) [ 48.656383][ C0] radio-si470x 1-1:0.241: non-zero urb status (-71) [ 48.676379][ C0] radio-si470x 1-1:0.241: non-zero urb status (-71) [ 48.696379][ C0] radio-si470x 1-1:0.241: non-zero urb status (-71) [ 48.716379][ C0] radio-si470x 1-1:0.241: non-zero urb status (-71) [ 48.736360][ C0] radio-si470x 1-1:0.241: non-zero urb status (-71) executing program [ 48.756356][ C0] radio-si470x 1-1:0.241: non-zero urb status (-71) [ 48.776411][ C0] radio-si470x 1-1:0.241: non-zero urb status (-71) [ 48.783139][ T107] radio-si470x 1-1:0.241: si470x_get_report: usb_control_msg returned -71 [ 48.792117][ T107] radio-si470x: probe of 1-1:0.241 failed with error -22 [ 48.799350][ C0] dummy_hcd dummy_hcd.0: no ep configured for urb 00000000b07b2836 [ 48.799520][ C0] ================================================================== [ 48.799555][ C0] BUG: KASAN: use-after-free in si470x_int_in_callback.cold+0x27/0xbe [ 48.799562][ C0] Read of size 8 at addr ffff8881cf4b4e28 by task kworker/0:2/107 [ 48.799564][ C0] [ 48.799572][ C0] CPU: 0 PID: 107 Comm: kworker/0:2 Not tainted 5.2.0-rc6+ #13 [ 48.799576][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.799587][ C0] Workqueue: usb_hub_wq hub_event [ 48.799591][ C0] Call Trace: [ 48.799594][ C0] [ 48.799602][ C0] dump_stack+0xca/0x13e [ 48.799609][ C0] ? si470x_int_in_callback.cold+0x27/0xbe [ 48.799616][ C0] ? si470x_int_in_callback.cold+0x27/0xbe [ 48.799625][ C0] print_address_description+0x67/0x231 [ 48.799631][ C0] ? si470x_int_in_callback.cold+0x27/0xbe [ 48.799638][ C0] ? si470x_int_in_callback.cold+0x27/0xbe [ 48.799644][ C0] __kasan_report.cold+0x1a/0x32 [ 48.799652][ C0] ? kthread+0x300/0x410 [ 48.799658][ C0] ? si470x_int_in_callback.cold+0x27/0xbe [ 48.799665][ C0] kasan_report+0xe/0x20 [ 48.799671][ C0] si470x_int_in_callback.cold+0x27/0xbe [ 48.799678][ C0] ? usb_hcd_unmap_urb_for_dma+0x105/0x9b0 [ 48.799687][ C0] ? dummy_timer+0x1010/0x2df4 [ 48.799693][ C0] __usb_hcd_giveback_urb+0x1f2/0x470 [ 48.799700][ C0] usb_hcd_giveback_urb+0x34a/0x400 [ 48.799706][ C0] dummy_timer+0x1022/0x2df4 [ 48.799713][ C0] ? mark_held_locks+0xe0/0xe0 [ 48.799719][ C0] ? __lock_acquire+0x54a/0x5340 [ 48.799725][ C0] ? find_held_lock+0x2d/0x110 [ 48.799732][ C0] ? do_raw_spin_lock+0x11a/0x280 [ 48.799737][ C0] ? lock_acquire+0x100/0x2b0 [ 48.799744][ C0] ? dummy_udc_probe+0x970/0x970 [ 48.799766][ C0] call_timer_fn+0x15e/0x5e0 [ 48.799774][ C0] ? dummy_udc_probe+0x970/0x970 [ 48.799780][ C0] ? process_timeout+0x40/0x40 [ 48.799786][ C0] ? mark_held_locks+0x9f/0xe0 [ 48.799793][ C0] ? _raw_spin_unlock_irq+0x24/0x30 [ 48.799799][ C0] ? dummy_udc_probe+0x970/0x970 [ 48.799806][ C0] run_timer_softirq+0x597/0x1410 [ 48.799812][ C0] ? add_timer+0x7a0/0x7a0 [ 48.799817][ C0] ? ktime_get+0x162/0x1d0 [ 48.799824][ C0] __do_softirq+0x219/0x8b0 [ 48.799832][ C0] irq_exit+0x17c/0x1a0 [ 48.799838][ C0] smp_apic_timer_interrupt+0xe2/0x480 [ 48.799845][ C0] apic_timer_interrupt+0xf/0x20 [ 48.799847][ C0] [ 48.799855][ C0] RIP: 0010:console_unlock+0x9db/0xbf0 [ 48.799862][ C0] Code: 00 89 ee 48 c7 c7 e0 eb f2 86 e8 50 a4 03 00 65 ff 0d 51 56 da 7e e9 11 fa ff ff e8 af 43 15 00 e8 ba 69 1a 00 ff 74 24 30 9d 31 fe ff ff e8 9b 43 15 00 48 8b bc 24 80 00 00 00 c7 05 d9 e6 [ 48.799865][ C0] RSP: 0018:ffff8881d4197148 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 48.799872][ C0] RAX: 0000000000000007 RBX: 0000000000000200 RCX: 1ffff1103aed5d24 [ 48.799875][ C0] RDX: 0000000000000000 RSI: ffff8881d76ae900 RDI: ffff8881d76ae834 [ 48.799879][ C0] RBP: 0000000000000000 R08: ffff8881d76ae000 R09: 0000000000000000 [ 48.799883][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000004e [ 48.799887][ C0] R13: ffffffff828cb580 R14: ffffffff8726a520 R15: dffffc0000000000 [ 48.799896][ C0] ? netconsole_netdev_event+0x2a0/0x2a0 [ 48.799904][ C0] vprintk_emit+0x171/0x3e0 [ 48.799910][ C0] vprintk_func+0x75/0x113 [ 48.799916][ C0] printk+0xba/0xed [ 48.799923][ C0] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 48.799931][ C0] really_probe.cold+0x69/0x122 [ 48.799938][ C0] driver_probe_device+0x104/0x210 [ 48.799945][ C0] __device_attach_driver+0x1c2/0x220 [ 48.799951][ C0] ? driver_allows_async_probing+0x160/0x160 [ 48.799957][ C0] bus_for_each_drv+0x15c/0x1e0 [ 48.799963][ C0] ? bus_rescan_devices+0x20/0x20 [ 48.799969][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 48.799975][ C0] ? lockdep_hardirqs_on+0x379/0x580 [ 48.799981][ C0] __device_attach+0x217/0x360 [ 48.799987][ C0] ? device_bind_driver+0xd0/0xd0 [ 48.799993][ C0] ? kobject_uevent_env+0x29e/0x1150 [ 48.799999][ C0] ? kobject_uevent_env+0x2a8/0x1150 [ 48.800005][ C0] bus_probe_device+0x1e4/0x290 [ 48.800012][ C0] ? blocking_notifier_call_chain+0x54/0xa0 [ 48.800017][ C0] device_add+0xae6/0x16f0 [ 48.800023][ C0] ? uevent_store+0x50/0x50 [ 48.800028][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 48.800035][ C0] usb_set_configuration+0xdf6/0x1670 [ 48.800041][ C0] generic_probe+0x9d/0xd5 [ 48.800047][ C0] usb_probe_device+0x99/0x100 [ 48.800052][ C0] ? usb_suspend+0x620/0x620 [ 48.800058][ C0] really_probe+0x281/0x660 [ 48.800064][ C0] driver_probe_device+0x104/0x210 [ 48.800071][ C0] __device_attach_driver+0x1c2/0x220 [ 48.800078][ C0] ? driver_allows_async_probing+0x160/0x160 [ 48.800083][ C0] bus_for_each_drv+0x15c/0x1e0 [ 48.800089][ C0] ? bus_rescan_devices+0x20/0x20 [ 48.800095][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 48.800101][ C0] ? lockdep_hardirqs_on+0x379/0x580 [ 48.800107][ C0] __device_attach+0x217/0x360 [ 48.800113][ C0] ? device_bind_driver+0xd0/0xd0 [ 48.800119][ C0] ? kobject_uevent_env+0x29e/0x1150 [ 48.800125][ C0] ? kobject_uevent_env+0x2a8/0x1150 [ 48.800131][ C0] bus_probe_device+0x1e4/0x290 [ 48.800136][ C0] ? blocking_notifier_call_chain+0x54/0xa0 [ 48.800142][ C0] device_add+0xae6/0x16f0 [ 48.800147][ C0] ? uevent_store+0x50/0x50 [ 48.800154][ C0] usb_new_device.cold+0x8c1/0x1016 [ 48.800160][ C0] ? usb_port_suspend+0xa40/0xa40 [ 48.800165][ C0] ? mark_held_locks+0x9f/0xe0 [ 48.800171][ C0] ? _raw_spin_unlock_irq+0x24/0x30 [ 48.800177][ C0] hub_event+0x1ada/0x3590 [ 48.800184][ C0] ? hub_port_debounce+0x260/0x260 [ 48.800192][ C0] process_one_work+0x905/0x1570 [ 48.800199][ C0] ? pwq_dec_nr_in_flight+0x310/0x310 [ 48.800205][ C0] ? do_raw_spin_lock+0x11a/0x280 [ 48.800211][ C0] worker_thread+0x96/0xe20 [ 48.800218][ C0] ? process_one_work+0x1570/0x1570 [ 48.800223][ C0] kthread+0x30b/0x410 [ 48.800229][ C0] ? kthread_park+0x1a0/0x1a0 [ 48.800235][ C0] ret_from_fork+0x24/0x30 [ 48.800237][ C0] [ 48.800241][ C0] Allocated by task 107: [ 48.800248][ C0] save_stack+0x1b/0x80 [ 48.800257][ C0] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 48.800265][ C0] si470x_usb_driver_probe+0x51/0xf14 [ 48.800271][ C0] usb_probe_interface+0x305/0x7a0 [ 48.800276][ C0] really_probe+0x281/0x660 [ 48.800282][ C0] driver_probe_device+0x104/0x210 [ 48.800287][ C0] __device_attach_driver+0x1c2/0x220 [ 48.800293][ C0] bus_for_each_drv+0x15c/0x1e0 [ 48.800298][ C0] __device_attach+0x217/0x360 [ 48.800304][ C0] bus_probe_device+0x1e4/0x290 [ 48.800308][ C0] device_add+0xae6/0x16f0 [ 48.800314][ C0] usb_set_configuration+0xdf6/0x1670 [ 48.800318][ C0] generic_probe+0x9d/0xd5 [ 48.800323][ C0] usb_probe_device+0x99/0x100 [ 48.800329][ C0] really_probe+0x281/0x660 [ 48.800334][ C0] driver_probe_device+0x104/0x210 [ 48.800340][ C0] __device_attach_driver+0x1c2/0x220 [ 48.800346][ C0] bus_for_each_drv+0x15c/0x1e0 [ 48.800351][ C0] __device_attach+0x217/0x360 [ 48.800357][ C0] bus_probe_device+0x1e4/0x290 [ 48.800361][ C0] device_add+0xae6/0x16f0 [ 48.800367][ C0] usb_new_device.cold+0x8c1/0x1016 [ 48.800372][ C0] hub_event+0x1ada/0x3590 [ 48.800378][ C0] process_one_work+0x905/0x1570 [ 48.800384][ C0] worker_thread+0x96/0xe20 [ 48.800389][ C0] kthread+0x30b/0x410 [ 48.800394][ C0] ret_from_fork+0x24/0x30 [ 48.800396][ C0] [ 48.800398][ C0] Freed by task 107: [ 48.800404][ C0] save_stack+0x1b/0x80 [ 48.800410][ C0] __kasan_slab_free+0x130/0x180 [ 48.800416][ C0] kfree+0xd7/0x280 [ 48.800422][ C0] si470x_usb_driver_probe+0xaf5/0xf14 [ 48.800427][ C0] usb_probe_interface+0x305/0x7a0 [ 48.800432][ C0] really_probe+0x281/0x660 [ 48.800438][ C0] driver_probe_device+0x104/0x210 [ 48.800444][ C0] __device_attach_driver+0x1c2/0x220 [ 48.800453][ C0] bus_for_each_drv+0x15c/0x1e0 [ 48.800463][ C0] __device_attach+0x217/0x360 [ 48.800472][ C0] bus_probe_device+0x1e4/0x290 [ 48.800480][ C0] device_add+0xae6/0x16f0 [ 48.800489][ C0] usb_set_configuration+0xdf6/0x1670 [ 48.800497][ C0] generic_probe+0x9d/0xd5 [ 48.800507][ C0] usb_probe_device+0x99/0x100 [ 48.800517][ C0] really_probe+0x281/0x660 [ 48.800527][ C0] driver_probe_device+0x104/0x210 [ 48.800536][ C0] __device_attach_driver+0x1c2/0x220 [ 48.800542][ C0] bus_for_each_drv+0x15c/0x1e0 [ 48.800547][ C0] __device_attach+0x217/0x360 [ 48.800553][ C0] bus_probe_device+0x1e4/0x290 [ 48.800557][ C0] device_add+0xae6/0x16f0 [ 48.800563][ C0] usb_new_device.cold+0x8c1/0x1016 [ 48.800568][ C0] hub_event+0x1ada/0x3590 [ 48.800574][ C0] process_one_work+0x905/0x1570 [ 48.800580][ C0] worker_thread+0x96/0xe20 [ 48.800585][ C0] kthread+0x30b/0x410 [ 48.800590][ C0] ret_from_fork+0x24/0x30 [ 48.800592][ C0] [ 48.800597][ C0] The buggy address belongs to the object at ffff8881cf4b4400 [ 48.800597][ C0] which belongs to the cache kmalloc-4k of size 4096 [ 48.800603][ C0] The buggy address is located 2600 bytes inside of [ 48.800603][ C0] 4096-byte region [ffff8881cf4b4400, ffff8881cf4b5400) [ 48.800605][ C0] The buggy address belongs to the page: [ 48.800612][ C0] page:ffffea00073d2c00 refcount:1 mapcount:0 mapping:ffff8881dac02600 index:0x0 compound_mapcount: 0 [ 48.800619][ C0] flags: 0x200000000010200(slab|head) [ 48.800629][ C0] raw: 0200000000010200 ffffea00073d2400 0000000200000002 ffff8881dac02600 [ 48.800636][ C0] raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000 [ 48.800639][ C0] page dumped because: kasan: bad access detected [ 48.800640][ C0] [ 48.800642][ C0] Memory state around the buggy address: [ 48.800648][ C0] ffff8881cf4b4d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 48.800653][ C0] ffff8881cf4b4d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 48.800657][ C0] >ffff8881cf4b4e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 48.800660][ C0] ^ [ 48.800665][ C0] ffff8881cf4b4e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 48.800670][ C0] ffff8881cf4b4f00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 48.800672][ C0] ================================================================== [ 48.800674][ C0] Disabling lock debugging due to kernel taint [ 48.800678][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 48.800684][ C0] CPU: 0 PID: 107 Comm: kworker/0:2 Tainted: G B 5.2.0-rc6+ #13 [ 48.800687][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.800694][ C0] Workqueue: usb_hub_wq hub_event [ 48.800696][ C0] Call Trace: [ 48.800699][ C0] [ 48.800704][ C0] dump_stack+0xca/0x13e [ 48.800709][ C0] panic+0x292/0x6c9 [ 48.800715][ C0] ? __warn_printk+0xf3/0xf3 [ 48.800720][ C0] ? lock_downgrade+0x630/0x630 [ 48.800726][ C0] ? print_shadow_for_address+0xb8/0x114 [ 48.800733][ C0] ? trace_hardirqs_off+0x50/0x1c0 [ 48.800740][ C0] ? si470x_int_in_callback.cold+0x27/0xbe [ 48.800746][ C0] end_report+0x43/0x49 [ 48.800762][ C0] ? si470x_int_in_callback.cold+0x27/0xbe [ 48.800768][ C0] __kasan_report.cold+0xd/0x32 [ 48.800774][ C0] ? kthread+0x300/0x410 [ 48.800780][ C0] ? si470x_int_in_callback.cold+0x27/0xbe [ 48.800786][ C0] kasan_report+0xe/0x20 [ 48.800792][ C0] si470x_int_in_callback.cold+0x27/0xbe [ 48.800799][ C0] ? usb_hcd_unmap_urb_for_dma+0x105/0x9b0 [ 48.800805][ C0] ? dummy_timer+0x1010/0x2df4 [ 48.800811][ C0] __usb_hcd_giveback_urb+0x1f2/0x470 [ 48.800817][ C0] usb_hcd_giveback_urb+0x34a/0x400 [ 48.800824][ C0] dummy_timer+0x1022/0x2df4 [ 48.800829][ C0] ? mark_held_locks+0xe0/0xe0 [ 48.800834][ C0] ? __lock_acquire+0x54a/0x5340 [ 48.800839][ C0] ? find_held_lock+0x2d/0x110 [ 48.800845][ C0] ? do_raw_spin_lock+0x11a/0x280 [ 48.800850][ C0] ? lock_acquire+0x100/0x2b0 [ 48.800857][ C0] ? dummy_udc_probe+0x970/0x970 [ 48.800863][ C0] call_timer_fn+0x15e/0x5e0 [ 48.800869][ C0] ? dummy_udc_probe+0x970/0x970 [ 48.800876][ C0] ? process_timeout+0x40/0x40 [ 48.800881][ C0] ? mark_held_locks+0x9f/0xe0 [ 48.800887][ C0] ? _raw_spin_unlock_irq+0x24/0x30 [ 48.800893][ C0] ? dummy_udc_probe+0x970/0x970 [ 48.800899][ C0] run_timer_softirq+0x597/0x1410 [ 48.800905][ C0] ? add_timer+0x7a0/0x7a0 [ 48.800910][ C0] ? ktime_get+0x162/0x1d0 [ 48.800916][ C0] __do_softirq+0x219/0x8b0 [ 48.800922][ C0] irq_exit+0x17c/0x1a0 [ 48.800928][ C0] smp_apic_timer_interrupt+0xe2/0x480 [ 48.800934][ C0] apic_timer_interrupt+0xf/0x20 [ 48.800937][ C0] [ 48.800943][ C0] RIP: 0010:console_unlock+0x9db/0xbf0 [ 48.800949][ C0] Code: 00 89 ee 48 c7 c7 e0 eb f2 86 e8 50 a4 03 00 65 ff 0d 51 56 da 7e e9 11 fa ff ff e8 af 43 15 00 e8 ba 69 1a 00 ff 74 24 30 9d 31 fe ff ff e8 9b 43 15 00 48 8b bc 24 80 00 00 00 c7 05 d9 e6 [ 48.800952][ C0] RSP: 0018:ffff8881d4197148 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 48.800957][ C0] RAX: 0000000000000007 RBX: 0000000000000200 RCX: 1ffff1103aed5d24 [ 48.800961][ C0] RDX: 0000000000000000 RSI: ffff8881d76ae900 RDI: ffff8881d76ae834 [ 48.800964][ C0] RBP: 0000000000000000 R08: ffff8881d76ae000 R09: 0000000000000000 [ 48.800967][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000004e [ 48.800971][ C0] R13: ffffffff828cb580 R14: ffffffff8726a520 R15: dffffc0000000000 [ 48.800978][ C0] ? netconsole_netdev_event+0x2a0/0x2a0 [ 48.800985][ C0] vprintk_emit+0x171/0x3e0 [ 48.800991][ C0] vprintk_func+0x75/0x113 [ 48.800997][ C0] printk+0xba/0xed [ 48.801003][ C0] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 48.801009][ C0] really_probe.cold+0x69/0x122 [ 48.801015][ C0] driver_probe_device+0x104/0x210 [ 48.801021][ C0] __device_attach_driver+0x1c2/0x220 [ 48.801028][ C0] ? driver_allows_async_probing+0x160/0x160 [ 48.801033][ C0] bus_for_each_drv+0x15c/0x1e0 [ 48.801038][ C0] ? bus_rescan_devices+0x20/0x20 [ 48.801044][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 48.801049][ C0] ? lockdep_hardirqs_on+0x379/0x580 [ 48.801055][ C0] __device_attach+0x217/0x360 [ 48.801061][ C0] ? device_bind_driver+0xd0/0xd0 [ 48.801066][ C0] ? kobject_uevent_env+0x29e/0x1150 [ 48.801072][ C0] ? kobject_uevent_env+0x2a8/0x1150 [ 48.801077][ C0] bus_probe_device+0x1e4/0x290 [ 48.801083][ C0] ? blocking_notifier_call_chain+0x54/0xa0 [ 48.801088][ C0] device_add+0xae6/0x16f0 [ 48.801093][ C0] ? uevent_store+0x50/0x50 [ 48.801098][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 48.801104][ C0] usb_set_configuration+0xdf6/0x1670 [ 48.801109][ C0] generic_probe+0x9d/0xd5 [ 48.801114][ C0] usb_probe_device+0x99/0x100 [ 48.801119][ C0] ? usb_suspend+0x620/0x620 [ 48.801125][ C0] really_probe+0x281/0x660 [ 48.801131][ C0] driver_probe_device+0x104/0x210 [ 48.801137][ C0] __device_attach_driver+0x1c2/0x220 [ 48.801143][ C0] ? driver_allows_async_probing+0x160/0x160 [ 48.801148][ C0] bus_for_each_drv+0x15c/0x1e0 [ 48.801154][ C0] ? bus_rescan_devices+0x20/0x20 [ 48.801159][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 48.801165][ C0] ? lockdep_hardirqs_on+0x379/0x580 [ 48.801170][ C0] __device_attach+0x217/0x360 [ 48.801176][ C0] ? device_bind_driver+0xd0/0xd0 [ 48.801182][ C0] ? kobject_uevent_env+0x29e/0x1150 [ 48.801187][ C0] ? kobject_uevent_env+0x2a8/0x1150 [ 48.801193][ C0] bus_probe_device+0x1e4/0x290 [ 48.801198][ C0] ? blocking_notifier_call_chain+0x54/0xa0 [ 48.801203][ C0] device_add+0xae6/0x16f0 [ 48.801208][ C0] ? uevent_store+0x50/0x50 [ 48.801214][ C0] usb_new_device.cold+0x8c1/0x1016 [ 48.801220][ C0] ? usb_port_suspend+0xa40/0xa40 [ 48.801225][ C0] ? mark_held_locks+0x9f/0xe0 [ 48.801230][ C0] ? _raw_spin_unlock_irq+0x24/0x30 [ 48.801236][ C0] hub_event+0x1ada/0x3590 [ 48.801242][ C0] ? hub_port_debounce+0x260/0x260 [ 48.801249][ C0] process_one_work+0x905/0x1570 [ 48.801257][ C0] ? pwq_dec_nr_in_flight+0x310/0x310 [ 48.801263][ C0] ? do_raw_spin_lock+0x11a/0x280 [ 48.801269][ C0] worker_thread+0x96/0xe20 [ 48.801276][ C0] ? process_one_work+0x1570/0x1570 [ 48.801281][ C0] kthread+0x30b/0x410 [ 48.801286][ C0] ? kthread_park+0x1a0/0x1a0 [ 48.801291][ C0] ret_from_fork+0x24/0x30 [ 48.801356][ C0] Kernel Offset: disabled [ 50.406806][ C0] Rebooting in 86400 seconds..