[info] Using makefile-style concurrent boot in runlevel 2. [....] 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[ 13.809622][ T1666] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 34.796539][ T1707] random: sshd: uninitialized urandom read (32 bytes read) [ 34.828562][ C1] random: crng init done Warning: Permanently added '10.128.1.52' (ECDSA) to the list of known hosts. executing program [ 41.723382][ T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 41.963346][ T83] usb 1-1: Using ep0 maxpacket: 16 [ 42.083404][ T83] usb 1-1: config 0 has an invalid interface number: 128 but max is 0 [ 42.091734][ T83] usb 1-1: config 0 has an invalid descriptor of length 255, skipping remainder of the config [ 42.102012][ T83] usb 1-1: config 0 has no interface number 0 [ 42.108158][ T83] usb 1-1: config 0 interface 128 altsetting 0 endpoint 0x84 has an invalid bInterval 255, changing to 11 [ 42.119496][ T83] usb 1-1: New USB device found, idVendor=12cf, idProduct=7111, bcdDevice=48.08 [ 42.128583][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 42.139100][ T83] usb 1-1: config 0 descriptor?? [ 42.403857][ T83] radio-si470x 1-1:0.128: DeviceID=0xf11b ChipID=0xd481 [ 42.623422][ T83] radio-si470x 1-1:0.128: software version 241, hardware version 27 executing program [ 42.853361][ T83] radio-si470x 1-1:0.128: si470x_set_report: usb_control_msg returned -71 [ 42.873332][ C1] radio-si470x 1-1:0.128: non-zero urb status (-71) [ 42.880126][ T83] radio-si470x 1-1:0.128: si470x_set_report: usb_control_msg returned -71 [ 42.889340][ T83] radio-si470x: probe of 1-1:0.128 failed with error -22 [ 42.896508][ C1] ================================================================== [ 42.896549][ C1] BUG: KASAN: use-after-free in si470x_int_in_callback.cold+0x27/0xbe [ 42.896555][ C1] Read of size 8 at addr ffff8881d3101bb0 by task kworker/1:2/83 [ 42.896557][ C1] [ 42.896566][ C1] CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.4.0-rc1+ #0 [ 42.896571][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.896581][ C1] Workqueue: usb_hub_wq hub_event [ 42.896585][ C1] Call Trace: [ 42.896588][ C1] [ 42.896597][ C1] dump_stack+0xca/0x13e [ 42.896605][ C1] ? si470x_int_in_callback.cold+0x27/0xbe [ 42.896612][ C1] ? si470x_int_in_callback.cold+0x27/0xbe [ 42.896620][ C1] print_address_description.constprop.0+0x36/0x50 [ 42.896627][ C1] ? si470x_int_in_callback.cold+0x27/0xbe [ 42.896634][ C1] ? si470x_int_in_callback.cold+0x27/0xbe [ 42.896639][ C1] __kasan_report.cold+0x1a/0x33 [ 42.896647][ C1] ? si470x_int_in_callback.cold+0x27/0xbe [ 42.896652][ C1] kasan_report+0xe/0x20 [ 42.896659][ C1] si470x_int_in_callback.cold+0x27/0xbe [ 42.896666][ C1] ? usb_hcd_unmap_urb_for_dma+0x105/0x9b0 [ 42.896673][ C1] __usb_hcd_giveback_urb+0x1f2/0x470 [ 42.896679][ C1] usb_hcd_giveback_urb+0x368/0x420 [ 42.896686][ C1] dummy_timer+0x120f/0x2fa2 [ 42.896695][ C1] ? __lock_acquire+0x145e/0x3b60 [ 42.896702][ C1] ? find_held_lock+0x2d/0x110 [ 42.896709][ C1] ? debug_object_deactivate+0x1d9/0x320 [ 42.896716][ C1] ? mark_held_locks+0xe0/0xe0 [ 42.896722][ C1] ? dummy_udc_probe+0x930/0x930 [ 42.896729][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 42.896734][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 42.896743][ C1] call_timer_fn+0x179/0x650 [ 42.896749][ C1] ? dummy_udc_probe+0x930/0x930 [ 42.896755][ C1] ? msleep_interruptible+0x130/0x130 [ 42.896762][ C1] ? mark_held_locks+0x9f/0xe0 [ 42.896767][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 42.896774][ C1] ? _raw_spin_unlock_irq+0x24/0x30 [ 42.896779][ C1] ? dummy_udc_probe+0x930/0x930 [ 42.896786][ C1] run_timer_softirq+0x5e3/0x1490 [ 42.896792][ C1] ? add_timer+0x7a0/0x7a0 [ 42.896798][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 42.896804][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 42.896810][ C1] ? mark_held_locks+0x9f/0xe0 [ 42.896817][ C1] __do_softirq+0x221/0x912 [ 42.896824][ C1] irq_exit+0x178/0x1a0 [ 42.896831][ C1] smp_apic_timer_interrupt+0x12f/0x500 [ 42.896837][ C1] apic_timer_interrupt+0xf/0x20 [ 42.896840][ C1] [ 42.896847][ C1] RIP: 0010:console_unlock+0xa2a/0xc40 [ 42.896855][ C1] Code: 00 89 ee 48 c7 c7 40 59 d3 86 e8 41 b6 03 00 65 ff 0d f2 82 d9 7e e9 db f9 ff ff e8 50 b0 15 00 e8 6b db 1a 00 ff 74 24 30 9d 18 fe ff ff e8 3c b0 15 00 48 8d 7d 08 48 89 f8 48 c1 e8 03 42 [ 42.896858][ C1] RSP: 0018:ffff8881d8a4f1f0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 42.896865][ C1] RAX: 0000000000000007 RBX: 0000000000000200 RCX: 0000000000000006 [ 42.896869][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881d977504c [ 42.896874][ C1] RBP: 0000000000000000 R08: ffff8881d9774800 R09: fffffbfff11b25a5 [ 42.896878][ C1] R10: fffffbfff11b25a4 R11: ffffffff88d92d27 R12: 000000000000004e [ 42.896882][ C1] R13: dffffc0000000000 R14: ffffffff8293d990 R15: ffffffff87076f90 [ 42.896891][ C1] ? netconsole_netdev_event+0x2a0/0x2a0 [ 42.896898][ C1] vprintk_emit+0x171/0x3e0 [ 42.896904][ C1] vprintk_func+0x75/0x113 [ 42.896910][ C1] printk+0xba/0xed [ 42.896916][ C1] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 42.896925][ C1] really_probe.cold+0x69/0x1de [ 42.896932][ C1] driver_probe_device+0x104/0x210 [ 42.896939][ C1] __device_attach_driver+0x1c2/0x220 [ 42.896946][ C1] ? driver_allows_async_probing+0x160/0x160 [ 42.896952][ C1] bus_for_each_drv+0x162/0x1e0 [ 42.896958][ C1] ? bus_rescan_devices+0x20/0x20 [ 42.896964][ C1] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 42.896971][ C1] ? lockdep_hardirqs_on+0x382/0x580 [ 42.896978][ C1] __device_attach+0x217/0x360 [ 42.896984][ C1] ? device_bind_driver+0xd0/0xd0 [ 42.896990][ C1] ? kobject_uevent_env+0x29e/0x1150 [ 42.896996][ C1] ? kobject_uevent_env+0x2a8/0x1150 [ 42.897003][ C1] bus_probe_device+0x1e4/0x290 [ 42.897010][ C1] ? blocking_notifier_call_chain+0x54/0xa0 [ 42.897016][ C1] device_add+0xae6/0x16f0 [ 42.897022][ C1] ? uevent_store+0x50/0x50 [ 42.897028][ C1] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 42.897035][ C1] usb_set_configuration+0xdf6/0x1670 [ 42.897042][ C1] generic_probe+0x9d/0xd5 [ 42.897049][ C1] usb_probe_device+0x99/0x100 [ 42.897056][ C1] ? usb_suspend+0x620/0x620 [ 42.897062][ C1] really_probe+0x281/0x6d0 [ 42.897069][ C1] driver_probe_device+0x104/0x210 [ 42.897079][ C1] __device_attach_driver+0x1c2/0x220 [ 42.897090][ C1] ? driver_allows_async_probing+0x160/0x160 [ 42.897100][ C1] bus_for_each_drv+0x162/0x1e0 [ 42.897111][ C1] ? bus_rescan_devices+0x20/0x20 [ 42.897122][ C1] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 42.897133][ C1] ? lockdep_hardirqs_on+0x382/0x580 [ 42.897144][ C1] __device_attach+0x217/0x360 [ 42.897153][ C1] ? device_bind_driver+0xd0/0xd0 [ 42.897159][ C1] ? kobject_uevent_env+0x29e/0x1150 [ 42.897165][ C1] ? kobject_uevent_env+0x2a8/0x1150 [ 42.897172][ C1] bus_probe_device+0x1e4/0x290 [ 42.897179][ C1] ? blocking_notifier_call_chain+0x54/0xa0 [ 42.897184][ C1] device_add+0xae6/0x16f0 [ 42.897190][ C1] ? uevent_store+0x50/0x50 [ 42.897196][ C1] usb_new_device.cold+0x6a4/0xe79 [ 42.897202][ C1] hub_event+0x1b5c/0x3640 [ 42.897209][ C1] ? hub_port_debounce+0x260/0x260 [ 42.897215][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 42.897221][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 42.897228][ C1] process_one_work+0x92b/0x1530 [ 42.897234][ C1] ? pwq_dec_nr_in_flight+0x310/0x310 [ 42.897241][ C1] ? do_raw_spin_lock+0x11a/0x280 [ 42.897247][ C1] worker_thread+0x96/0xe20 [ 42.897253][ C1] ? process_one_work+0x1530/0x1530 [ 42.897259][ C1] kthread+0x318/0x420 [ 42.897265][ C1] ? kthread_create_on_node+0xf0/0xf0 [ 42.897271][ C1] ret_from_fork+0x24/0x30 [ 42.897273][ C1] [ 42.897278][ C1] Allocated by task 83: [ 42.897285][ C1] save_stack+0x1b/0x80 [ 42.897292][ C1] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 42.897298][ C1] si470x_usb_driver_probe+0x51/0xf50 [ 42.897305][ C1] usb_probe_interface+0x305/0x7a0 [ 42.897311][ C1] really_probe+0x281/0x6d0 [ 42.897317][ C1] driver_probe_device+0x104/0x210 [ 42.897323][ C1] __device_attach_driver+0x1c2/0x220 [ 42.897329][ C1] bus_for_each_drv+0x162/0x1e0 [ 42.897334][ C1] __device_attach+0x217/0x360 [ 42.897340][ C1] bus_probe_device+0x1e4/0x290 [ 42.897345][ C1] device_add+0xae6/0x16f0 [ 42.897352][ C1] usb_set_configuration+0xdf6/0x1670 [ 42.897357][ C1] generic_probe+0x9d/0xd5 [ 42.897363][ C1] usb_probe_device+0x99/0x100 [ 42.897369][ C1] really_probe+0x281/0x6d0 [ 42.897375][ C1] driver_probe_device+0x104/0x210 [ 42.897381][ C1] __device_attach_driver+0x1c2/0x220 [ 42.897387][ C1] bus_for_each_drv+0x162/0x1e0 [ 42.897393][ C1] __device_attach+0x217/0x360 [ 42.897399][ C1] bus_probe_device+0x1e4/0x290 [ 42.897404][ C1] device_add+0xae6/0x16f0 [ 42.897410][ C1] usb_new_device.cold+0x6a4/0xe79 [ 42.897415][ C1] hub_event+0x1b5c/0x3640 [ 42.897420][ C1] process_one_work+0x92b/0x1530 [ 42.897426][ C1] worker_thread+0x96/0xe20 [ 42.897430][ C1] kthread+0x318/0x420 [ 42.897436][ C1] ret_from_fork+0x24/0x30 [ 42.897437][ C1] [ 42.897441][ C1] Freed by task 83: [ 42.897447][ C1] save_stack+0x1b/0x80 [ 42.897453][ C1] __kasan_slab_free+0x130/0x180 [ 42.897463][ C1] kfree+0xe4/0x2f0 [ 42.897469][ C1] si470x_usb_driver_probe+0xb27/0xf50 [ 42.897476][ C1] usb_probe_interface+0x305/0x7a0 [ 42.897481][ C1] really_probe+0x281/0x6d0 [ 42.897487][ C1] driver_probe_device+0x104/0x210 [ 42.897494][ C1] __device_attach_driver+0x1c2/0x220 [ 42.897499][ C1] bus_for_each_drv+0x162/0x1e0 [ 42.897505][ C1] __device_attach+0x217/0x360 [ 42.897511][ C1] bus_probe_device+0x1e4/0x290 [ 42.897516][ C1] device_add+0xae6/0x16f0 [ 42.897522][ C1] usb_set_configuration+0xdf6/0x1670 [ 42.897528][ C1] generic_probe+0x9d/0xd5 [ 42.897534][ C1] usb_probe_device+0x99/0x100 [ 42.897540][ C1] really_probe+0x281/0x6d0 [ 42.897546][ C1] driver_probe_device+0x104/0x210 [ 42.897552][ C1] __device_attach_driver+0x1c2/0x220 [ 42.897558][ C1] bus_for_each_drv+0x162/0x1e0 [ 42.897564][ C1] __device_attach+0x217/0x360 [ 42.897570][ C1] bus_probe_device+0x1e4/0x290 [ 42.897575][ C1] device_add+0xae6/0x16f0 [ 42.897580][ C1] usb_new_device.cold+0x6a4/0xe79 [ 42.897585][ C1] hub_event+0x1b5c/0x3640 [ 42.897591][ C1] process_one_work+0x92b/0x1530 [ 42.897596][ C1] worker_thread+0x96/0xe20 [ 42.897601][ C1] kthread+0x318/0x420 [ 42.897606][ C1] ret_from_fork+0x24/0x30 [ 42.897608][ C1] [ 42.897613][ C1] The buggy address belongs to the object at ffff8881d3101100 [ 42.897613][ C1] which belongs to the cache kmalloc-4k of size 4096 [ 42.897619][ C1] The buggy address is located 2736 bytes inside of [ 42.897619][ C1] 4096-byte region [ffff8881d3101100, ffff8881d3102100) [ 42.897621][ C1] The buggy address belongs to the page: [ 42.897628][ C1] page:ffffea00074c4000 refcount:1 mapcount:0 mapping:ffff8881da00c280 index:0x0 compound_mapcount: 0 [ 42.897635][ C1] flags: 0x200000000010200(slab|head) [ 42.897645][ C1] raw: 0200000000010200 ffffea00074a3800 0000000300000003 ffff8881da00c280 [ 42.897653][ C1] raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000 [ 42.897656][ C1] page dumped because: kasan: bad access detected [ 42.897658][ C1] [ 42.897660][ C1] Memory state around the buggy address: [ 42.897665][ C1] ffff8881d3101a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 42.897670][ C1] ffff8881d3101b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 42.897676][ C1] >ffff8881d3101b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 42.897678][ C1] ^ [ 42.897683][ C1] ffff8881d3101c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 42.897688][ C1] ffff8881d3101c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 42.897691][ C1] ================================================================== [ 42.897693][ C1] Disabling lock debugging due to kernel taint [ 42.897697][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 42.897703][ C1] CPU: 1 PID: 83 Comm: kworker/1:2 Tainted: G B 5.4.0-rc1+ #0 [ 42.897707][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.897712][ C1] Workqueue: usb_hub_wq hub_event [ 42.897715][ C1] Call Trace: [ 42.897717][ C1] [ 42.897723][ C1] dump_stack+0xca/0x13e [ 42.897730][ C1] panic+0x2a3/0x6da [ 42.897736][ C1] ? add_taint.cold+0x16/0x16 [ 42.897742][ C1] ? print_shadow_for_address+0xb8/0x114 [ 42.897749][ C1] ? trace_hardirqs_off+0x50/0x1d0 [ 42.897755][ C1] ? si470x_int_in_callback.cold+0x27/0xbe [ 42.897760][ C1] end_report+0x43/0x49 [ 42.897767][ C1] ? si470x_int_in_callback.cold+0x27/0xbe [ 42.897772][ C1] __kasan_report.cold+0xd/0x33 [ 42.897778][ C1] ? si470x_int_in_callback.cold+0x27/0xbe [ 42.897783][ C1] kasan_report+0xe/0x20 [ 42.897790][ C1] si470x_int_in_callback.cold+0x27/0xbe [ 42.897796][ C1] ? usb_hcd_unmap_urb_for_dma+0x105/0x9b0 [ 42.897802][ C1] __usb_hcd_giveback_urb+0x1f2/0x470 [ 42.897807][ C1] usb_hcd_giveback_urb+0x368/0x420 [ 42.897813][ C1] dummy_timer+0x120f/0x2fa2 [ 42.897819][ C1] ? __lock_acquire+0x145e/0x3b60 [ 42.897825][ C1] ? find_held_lock+0x2d/0x110 [ 42.897831][ C1] ? debug_object_deactivate+0x1d9/0x320 [ 42.897837][ C1] ? mark_held_locks+0xe0/0xe0 [ 42.897843][ C1] ? dummy_udc_probe+0x930/0x930 [ 42.897848][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 42.897853][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 42.897859][ C1] call_timer_fn+0x179/0x650 [ 42.897864][ C1] ? dummy_udc_probe+0x930/0x930 [ 42.897870][ C1] ? msleep_interruptible+0x130/0x130 [ 42.897876][ C1] ? mark_held_locks+0x9f/0xe0 [ 42.897882][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 42.897887][ C1] ? _raw_spin_unlock_irq+0x24/0x30 [ 42.897892][ C1] ? dummy_udc_probe+0x930/0x930 [ 42.897898][ C1] run_timer_softirq+0x5e3/0x1490 [ 42.897904][ C1] ? add_timer+0x7a0/0x7a0 [ 42.897909][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 42.897914][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 42.897920][ C1] ? mark_held_locks+0x9f/0xe0 [ 42.897926][ C1] __do_softirq+0x221/0x912 [ 42.897932][ C1] irq_exit+0x178/0x1a0 [ 42.897938][ C1] smp_apic_timer_interrupt+0x12f/0x500 [ 42.897944][ C1] apic_timer_interrupt+0xf/0x20 [ 42.897946][ C1] [ 42.897952][ C1] RIP: 0010:console_unlock+0xa2a/0xc40 [ 42.897958][ C1] Code: 00 89 ee 48 c7 c7 40 59 d3 86 e8 41 b6 03 00 65 ff 0d f2 82 d9 7e e9 db f9 ff ff e8 50 b0 15 00 e8 6b db 1a 00 ff 74 24 30 9d 18 fe ff ff e8 3c b0 15 00 48 8d 7d 08 48 89 f8 48 c1 e8 03 42 [ 42.897961][ C1] RSP: 0018:ffff8881d8a4f1f0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 42.897972][ C1] RAX: 0000000000000007 RBX: 0000000000000200 RCX: 0000000000000006 [ 42.897976][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881d977504c [ 42.897979][ C1] RBP: 0000000000000000 R08: ffff8881d9774800 R09: fffffbfff11b25a5 [ 42.897983][ C1] R10: fffffbfff11b25a4 R11: ffffffff88d92d27 R12: 000000000000004e [ 42.897987][ C1] R13: dffffc0000000000 R14: ffffffff8293d990 R15: ffffffff87076f90 [ 42.897994][ C1] ? netconsole_netdev_event+0x2a0/0x2a0 [ 42.898000][ C1] vprintk_emit+0x171/0x3e0 [ 42.898006][ C1] vprintk_func+0x75/0x113 [ 42.898011][ C1] printk+0xba/0xed [ 42.898017][ C1] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 42.898023][ C1] really_probe.cold+0x69/0x1de [ 42.898030][ C1] driver_probe_device+0x104/0x210 [ 42.898037][ C1] __device_attach_driver+0x1c2/0x220 [ 42.898043][ C1] ? driver_allows_async_probing+0x160/0x160 [ 42.898049][ C1] bus_for_each_drv+0x162/0x1e0 [ 42.898055][ C1] ? bus_rescan_devices+0x20/0x20 [ 42.898060][ C1] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 42.898067][ C1] ? lockdep_hardirqs_on+0x382/0x580 [ 42.898072][ C1] __device_attach+0x217/0x360 [ 42.898079][ C1] ? device_bind_driver+0xd0/0xd0 [ 42.898084][ C1] ? kobject_uevent_env+0x29e/0x1150 [ 42.898089][ C1] ? kobject_uevent_env+0x2a8/0x1150 [ 42.898095][ C1] bus_probe_device+0x1e4/0x290 [ 42.898102][ C1] ? blocking_notifier_call_chain+0x54/0xa0 [ 42.898107][ C1] device_add+0xae6/0x16f0 [ 42.898112][ C1] ? uevent_store+0x50/0x50 [ 42.898118][ C1] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 42.898124][ C1] usb_set_configuration+0xdf6/0x1670 [ 42.898131][ C1] generic_probe+0x9d/0xd5 [ 42.898137][ C1] usb_probe_device+0x99/0x100 [ 42.898143][ C1] ? usb_suspend+0x620/0x620 [ 42.898149][ C1] really_probe+0x281/0x6d0 [ 42.898155][ C1] driver_probe_device+0x104/0x210 [ 42.898161][ C1] __device_attach_driver+0x1c2/0x220 [ 42.898168][ C1] ? driver_allows_async_probing+0x160/0x160 [ 42.898173][ C1] bus_for_each_drv+0x162/0x1e0 [ 42.898181][ C1] ? bus_rescan_devices+0x20/0x20 [ 42.898190][ C1] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 42.898201][ C1] ? lockdep_hardirqs_on+0x382/0x580 [ 42.898211][ C1] __device_attach+0x217/0x360 [ 42.898221][ C1] ? device_bind_driver+0xd0/0xd0 [ 42.898230][ C1] ? kobject_uevent_env+0x29e/0x1150 [ 42.898237][ C1] ? kobject_uevent_env+0x2a8/0x1150 [ 42.898243][ C1] bus_probe_device+0x1e4/0x290 [ 42.898249][ C1] ? blocking_notifier_call_chain+0x54/0xa0 [ 42.898254][ C1] device_add+0xae6/0x16f0 [ 42.898260][ C1] ? uevent_store+0x50/0x50 [ 42.898265][ C1] usb_new_device.cold+0x6a4/0xe79 [ 42.898271][ C1] hub_event+0x1b5c/0x3640 [ 42.898277][ C1] ? hub_port_debounce+0x260/0x260 [ 42.898283][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 42.898288][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 42.898294][ C1] process_one_work+0x92b/0x1530 [ 42.898300][ C1] ? pwq_dec_nr_in_flight+0x310/0x310 [ 42.898305][ C1] ? do_raw_spin_lock+0x11a/0x280 [ 42.898311][ C1] worker_thread+0x96/0xe20 [ 42.898317][ C1] ? process_one_work+0x1530/0x1530 [ 42.898322][ C1] kthread+0x318/0x420 [ 42.898327][ C1] ? kthread_create_on_node+0xf0/0xf0 [ 42.898332][ C1] ret_from_fork+0x24/0x30 [ 42.898952][ C1] Kernel Offset: disabled [ 44.504875][ C1] Rebooting in 86400 seconds..