asus 0003:0B05:19B6.000D: hidraw0: USB HID v0.0c Device [HID 0b05:19b6] on usb-dummy_hcd.7-1/input0
usb 8-1: USB disconnect, device number 14
------------[ cut here ]------------
!work->func
WARNING: kernel/workqueue.c:4335 at __flush_work+0xb8f/0xca0, CPU#1: kworker/1:0/24
Modules linked in:
CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: usb_hub_wq hub_event
RIP: 0010:__flush_work+0xb8f/0xca0
Code: 75 5e 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 70 ca 38 00 90 0f 0b 90 e9 7c ff ff ff e8 62 ca 38 00 90 <0f> 0b 90 31 c0 48 bb f8 f8 f8 f8 f8 f8 f8 f8 e9 64 ff ff ff e8 48
RSP: 0018:ffffc900001e6f40 EFLAGS: 00010283
RAX: ffffffff818e1d7e RBX: ffff8881bdb61cf0 RCX: 0000000000100000
RDX: ffffc90026bad000 RSI: 0000000000004236 RDI: 0000000000004237
RBP: ffffc900001e7100 R08: ffffffff90571d37 R09: 1ffffffff20ae3a6
R10: dffffc0000000000 R11: fffffbfff20ae3a7 R12: dffffc0000000000
R13: 1ffff11037b6c39e R14: 1ffff9200003cdf0 R15: ffff8881bdb61cd8
FS:  0000000000000000(0000) GS:ffff8882a8f5d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e849ed158 CR3: 00000000225c6000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __cancel_work_sync+0xbe/0x110
 asus_remove+0x147/0x180
 hid_device_remove+0x230/0x370
 device_release_driver_internal+0x48b/0x880
 bus_remove_device+0x444/0x560
 device_del+0x524/0x8f0
 hid_destroy_device+0x6b/0x1b0
 usbhid_disconnect+0x9f/0xc0
 usb_unbind_interface+0x295/0x9f0
 device_release_driver_internal+0x4f5/0x880
 bus_remove_device+0x444/0x560
 device_del+0x524/0x8f0
 usb_disable_device+0x3d4/0x8d0
 usb_disconnect+0x346/0x9a0
 hub_event+0x1bbb/0x4d30
 process_scheduled_works+0xa8e/0x14e0
 worker_thread+0xa47/0xfb0
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
