usb 4-1: USB disconnect, device number 20 ------------[ cut here ]------------ workqueue: work disable count underflowed WARNING: CPU: 1 PID: 16176 at kernel/workqueue.c:4326 work_offqd_enable kernel/workqueue.c:4326 [inline] WARNING: CPU: 1 PID: 16176 at kernel/workqueue.c:4326 enable_work+0x2b1/0x2c0 kernel/workqueue.c:4497 Modules linked in: CPU: 1 UID: 0 PID: 16176 Comm: kworker/1:2 Not tainted 6.15.0-rc5-syzkaller-00038-g707df3375124 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025 Workqueue: usb_hub_wq hub_event RIP: 0010:work_offqd_enable kernel/workqueue.c:4326 [inline] RIP: 0010:enable_work+0x2b1/0x2c0 kernel/workqueue.c:4497 Code: 41 5e 41 5f 5d c3 cc cc cc cc cc e8 59 d5 ca 09 e8 44 7f 34 00 c6 05 40 7e dd 0d 01 90 48 c7 c7 80 cc 69 8b e8 80 db f8 ff 90 <0f> 0b 90 90 e9 69 ff ff ff 66 0f 1f 44 00 00 90 90 90 90 90 90 90 RSP: 0018:ffffc9000440f100 EFLAGS: 00010046 RAX: 91502d4e023de400 RBX: ffff88805df90730 RCX: 0000000000100000 RDX: ffffc90018fae000 RSI: 000000000000b1b7 RDI: 000000000000b1b8 RBP: ffffc9000440f1c0 R08: ffff8880b8923e93 R09: 1ffff110171247d2 R10: dffffc0000000000 R11: ffffed10171247d3 R12: 1ffff92000881e24 R13: dffffc0000000000 R14: 0000000000000000 R15: 001fffffffc00001 FS: 0000000000000000(0000) GS:ffff8881261cb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1d7e3fbdcc CR3: 000000002f278000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __cancel_work_sync+0xf7/0x110 kernel/workqueue.c:4367 thermal_zone_device_unregister+0x210/0x380 drivers/thermal/thermal_core.c:1719 psy_unregister_thermal drivers/power/supply/power_supply_core.c:1487 [inline] power_supply_unregister+0xf9/0x140 drivers/power/supply/power_supply_core.c:1704 thunderstrike_destroy drivers/hid/hid-nvidia-shield.c:927 [inline] shield_remove+0x72/0x120 drivers/hid/hid-nvidia-shield.c:1104 hid_device_remove+0x225/0x370 drivers/hid/hid-core.c:-1 device_remove drivers/base/dd.c:567 [inline] __device_release_driver drivers/base/dd.c:1272 [inline] device_release_driver_internal+0x46c/0x7c0 drivers/base/dd.c:1295 bus_remove_device+0x34d/0x410 drivers/base/bus.c:579 device_del+0x511/0x8e0 drivers/base/core.c:3881 hid_remove_device drivers/hid/hid-core.c:2957 [inline] hid_destroy_device+0x6b/0x1b0 drivers/hid/hid-core.c:2979 usbhid_disconnect+0x9f/0xc0 drivers/hid/usbhid/hid-core.c:1459 usb_unbind_interface+0x26b/0x8f0 drivers/usb/core/driver.c:458 device_remove drivers/base/dd.c:569 [inline] __device_release_driver drivers/base/dd.c:1272 [inline] device_release_driver_internal+0x4d6/0x7c0 drivers/base/dd.c:1295 bus_remove_device+0x34d/0x410 drivers/base/bus.c:579 device_del+0x511/0x8e0 drivers/base/core.c:3881 usb_disable_device+0x3e9/0x8a0 drivers/usb/core/message.c:1418 usb_disconnect+0x330/0x910 drivers/usb/core/hub.c:2316 hub_port_connect drivers/usb/core/hub.c:5371 [inline] hub_port_connect_change drivers/usb/core/hub.c:5671 [inline] port_event drivers/usb/core/hub.c:5831 [inline] hub_event+0x1cdb/0x4a00 drivers/usb/core/hub.c:5913 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xadb/0x17a0 kernel/workqueue.c:3319 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245