usb 1-1: USB disconnect, device number 3 ------------[ cut here ]------------ !work->func WARNING: kernel/workqueue.c:4335 at __flush_work+0xb8f/0xca0 kernel/workqueue.c:4335, CPU#0: kworker/0:3/5700 Modules linked in: CPU: 0 UID: 0 PID: 5700 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Workqueue: usb_hub_wq hub_event RIP: 0010:__flush_work+0xb8f/0xca0 kernel/workqueue.c:4335 Code: 75 5e 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 86 34 47 0a cc e8 30 cd 38 00 90 0f 0b 90 e9 7c ff ff ff e8 22 cd 38 00 90 <0f> 0b 90 31 c0 48 bb f8 f8 f8 f8 f8 f8 f8 f8 e9 64 ff ff ff e8 08 RSP: 0000:ffffc9000429ef40 EFLAGS: 00010293 RAX: ffffffff818e346e RBX: ffff888034235cf0 RCX: ffff88807c92be00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888034235cd8 RBP: ffffc9000429f100 R08: ffffffff90578f37 R09: 1ffffffff20af1e6 R10: dffffc0000000000 R11: fffffbfff20af1e7 R12: dffffc0000000000 R13: 1ffff11006846b9e R14: 1ffff92000853df0 R15: ffff888034235cd8 FS: 0000000000000000(0000) GS:ffff888124f49000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005613bac676d0 CR3: 000000000e946000 CR4: 00000000003526f0 Call Trace: __cancel_work_sync+0xbe/0x110 kernel/workqueue.c:4494 asus_remove+0x147/0x180 drivers/hid/hid-asus.c:1360 hid_device_remove+0x230/0x370 drivers/hid/hid-core.c:-1 device_remove drivers/base/dd.c:616 [inline] __device_release_driver drivers/base/dd.c:1349 [inline] device_release_driver_internal+0x48b/0x880 drivers/base/dd.c:1372 bus_remove_device+0x444/0x560 drivers/base/bus.c:664 device_del+0x524/0x8f0 drivers/base/core.c:3961 hid_remove_device drivers/hid/hid-core.c:3071 [inline] hid_destroy_device+0x6b/0x1b0 drivers/hid/hid-core.c:3093 usbhid_disconnect+0x9f/0xc0 drivers/hid/usbhid/hid-core.c:1479 usb_unbind_interface+0x295/0x9f0 drivers/usb/core/driver.c:458 device_remove drivers/base/dd.c:618 [inline] __device_release_driver drivers/base/dd.c:1349 [inline] device_release_driver_internal+0x4f5/0x880 drivers/base/dd.c:1372 bus_remove_device+0x444/0x560 drivers/base/bus.c:664 device_del+0x524/0x8f0 drivers/base/core.c:3961 usb_disable_device+0x3d4/0x8d0 drivers/usb/core/message.c:1478 usb_disconnect+0x346/0x9a0 drivers/usb/core/hub.c:2345 hub_port_connect drivers/usb/core/hub.c:5415 [inline] hub_port_connect_change drivers/usb/core/hub.c:5715 [inline] port_event drivers/usb/core/hub.c:5879 [inline] hub_event+0x1bbb/0x4d30 drivers/usb/core/hub.c:5961 process_one_work kernel/workqueue.c:3322 [inline] process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245