usb 9-1: USB disconnect, device number 4
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workqueue: work disable count underflowed
WARNING: kernel/workqueue.c:4359 at work_offqd_enable kernel/workqueue.c:4359 [inline], CPU#1: kworker/1:3/21732
WARNING: kernel/workqueue.c:4359 at enable_work+0x1b3/0x220 kernel/workqueue.c:4530, CPU#1: kworker/1:3/21732
Modules linked in:
CPU: 1 UID: 0 PID: 21732 Comm: kworker/1:3 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: usb_hub_wq hub_event
RIP: 0010:work_offqd_enable kernel/workqueue.c:4359 [inline]
RIP: 0010:enable_work+0x1b3/0x220 kernel/workqueue.c:4530
Code: c3 14 35 00 4d 85 f6 75 48 e8 b9 14 35 00 eb 47 e8 b2 14 35 00 90 0f 0b 90 e9 d0 fe ff ff e8 a4 14 35 00 48 8d 3d bd 67 53 0d <67> 48 0f b9 3a e9 e6 fe ff ff e8 8e 14 35 00 90 0f 0b 90 e9 1a ff
RSP: 0018:ffffc9000ca870e0 EFLAGS: 00010087
RAX: ffffffff818a98bc RBX: 0000000000000000 RCX: 0000000000100000
RDX: ffffc9001ab2e000 RSI: 0000000000006894 RDI: ffffffff8ede0080
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed100c043d04 R12: 1ffff1100c043d03
R13: 001fffffffc00001 R14: ffff88806021e818 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888126deb000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3f32ab CR3: 00000000349a6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __cancel_work_sync+0xf7/0x110 kernel/workqueue.c:4400
 thermal_zone_device_unregister+0x23e/0x3f0 drivers/thermal/thermal_core.c:1719
 psy_unregister_thermal drivers/power/supply/power_supply_core.c:1551 [inline]
 power_supply_unregister+0xf9/0x140 drivers/power/supply/power_supply_core.c:1767
 thunderstrike_destroy drivers/hid/hid-nvidia-shield.c:927 [inline]
 shield_remove+0x72/0x120 drivers/hid/hid-nvidia-shield.c:1104
 hid_device_remove+0x22b/0x370 drivers/hid/hid-core.c:-1
 device_remove drivers/base/dd.c:569 [inline]
 __device_release_driver drivers/base/dd.c:1282 [inline]
 device_release_driver_internal+0x46f/0x800 drivers/base/dd.c:1305
 bus_remove_device+0x355/0x450 drivers/base/bus.c:616
 device_del+0x515/0x8e0 drivers/base/core.c:3878
 hid_remove_device drivers/hid/hid-core.c:3008 [inline]
 hid_destroy_device+0x6b/0x1b0 drivers/hid/hid-core.c:3030
 usbhid_disconnect+0x9f/0xc0 drivers/hid/usbhid/hid-core.c:1477
 usb_unbind_interface+0x26e/0x910 drivers/usb/core/driver.c:458
 device_remove drivers/base/dd.c:571 [inline]
 __device_release_driver drivers/base/dd.c:1282 [inline]
 device_release_driver_internal+0x4d9/0x800 drivers/base/dd.c:1305
 bus_remove_device+0x355/0x450 drivers/base/bus.c:616
 device_del+0x515/0x8e0 drivers/base/core.c:3878
 usb_disable_device+0x3d4/0x8e0 drivers/usb/core/message.c:1418
 usb_disconnect+0x315/0x970 drivers/usb/core/hub.c:2345
 hub_port_connect drivers/usb/core/hub.c:5407 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
 port_event drivers/usb/core/hub.c:5871 [inline]
 hub_event+0x1cd9/0x4f30 drivers/usb/core/hub.c:5953
 process_one_work kernel/workqueue.c:3257 [inline]
 process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
----------------
Code disassembly (best guess):
   0:	c3                   	ret
   1:	14 35                	adc    $0x35,%al
   3:	00 4d 85             	add    %cl,-0x7b(%rbp)
   6:	f6 75 48             	divb   0x48(%rbp)
   9:	e8 b9 14 35 00       	call   0x3514c7
   e:	eb 47                	jmp    0x57
  10:	e8 b2 14 35 00       	call   0x3514c7
  15:	90                   	nop
  16:	0f 0b                	ud2
  18:	90                   	nop
  19:	e9 d0 fe ff ff       	jmp    0xfffffeee
  1e:	e8 a4 14 35 00       	call   0x3514c7
  23:	48 8d 3d bd 67 53 0d 	lea    0xd5367bd(%rip),%rdi        # 0xd5367e7
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	e9 e6 fe ff ff       	jmp    0xffffff1a
  34:	e8 8e 14 35 00       	call   0x3514c7
  39:	90                   	nop
  3a:	0f 0b                	ud2
  3c:	90                   	nop
  3d:	e9                   	.byte 0xe9
  3e:	1a ff                	sbb    %bh,%bh