usb 1-1: USB disconnect, device number 80 ------------[ cut here ]------------ workqueue: work disable count underflowed WARNING: kernel/workqueue.c:4359 at work_offqd_enable kernel/workqueue.c:4359 [inline], CPU#1: kworker/1:0/24 WARNING: kernel/workqueue.c:4359 at enable_work+0x273/0x2b0 kernel/workqueue.c:4530, CPU#1: kworker/1:0/24 Modules linked in: CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Not tainted syzkaller #0 PREEMPT(full) 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+0x273/0x2b0 kernel/workqueue.c:4530 Code: 5b 41 5c 41 5d 41 5e 41 5f 5d e9 e3 2c 85 ff cc e8 22 9e 36 00 90 0f 0b 90 e9 54 fe ff ff e8 14 9e 36 00 48 8d 3d 7d f6 f9 0d <67> 48 0f b9 3a 45 31 e4 e9 67 fe ff ff e8 fb 9d 36 00 90 0f 0b 90 RSP: 0018:ffffc900001e7020 EFLAGS: 00010093 RAX: ffffffff818b143c RBX: dffffc0000000000 RCX: ffff88801c6e0000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8f850ac0 RBP: ffffc900001e70d8 R08: ffff8880317e473f R09: 1ffff110062fc8e7 R10: dffffc0000000000 R11: ffffed10062fc8e8 R12: 0000000000000000 R13: 1ffff110062fc8e7 R14: ffff8880317e4738 R15: 001fffffffc00001 FS: 0000000000000000(0000) GS:ffff888125f35000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb12db72100 CR3: 000000005c4e8000 CR4: 0000000000350ef0 Call Trace: __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+0x228/0x370 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+0x34d/0x440 drivers/base/bus.c:616 device_del+0x511/0x8e0 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:1462 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+0x34d/0x440 drivers/base/bus.c:616 device_del+0x511/0x8e0 drivers/base/core.c:3878 usb_disable_device+0x3d4/0x8e0 drivers/usb/core/message.c:1418 usb_disconnect+0x32f/0x990 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+0x1ca9/0x4ef0 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+0x599/0xb30 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 ---------------- Code disassembly (best guess): 0: 5b pop %rbx 1: 41 5c pop %r12 3: 41 5d pop %r13 5: 41 5e pop %r14 7: 41 5f pop %r15 9: 5d pop %rbp a: e9 e3 2c 85 ff jmp 0xff852cf2 f: cc int3 10: e8 22 9e 36 00 call 0x369e37 15: 90 nop 16: 0f 0b ud2 18: 90 nop 19: e9 54 fe ff ff jmp 0xfffffe72 1e: e8 14 9e 36 00 call 0x369e37 23: 48 8d 3d 7d f6 f9 0d lea 0xdf9f67d(%rip),%rdi # 0xdf9f6a7 * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 45 31 e4 xor %r12d,%r12d 32: e9 67 fe ff ff jmp 0xfffffe9e 37: e8 fb 9d 36 00 call 0x369e37 3c: 90 nop 3d: 0f 0b ud2 3f: 90 nop