cdc_wdm 3-1:1.0: skipping garbage cdc_wdm 3-1:1.0: skipping garbage cdc_wdm 3-1:1.0: skipping garbage cdc_wdm 3-1:1.0: cdc-wdm0: USB WDM device cdc_wdm 3-1:1.0: Unknown control protocol usb 4-1: USB disconnect, device number 106 ------------[ cut here ]------------ !work->func WARNING: kernel/workqueue.c:4335 at __flush_work+0xb8f/0xca0 kernel/workqueue.c:4335, CPU#1: kworker/1:1/28773 Modules linked in: CPU: 1 UID: 0 PID: 28773 Comm: kworker/1:1 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 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 c3 cc cc cc cc cc e8 f0 d1 38 00 90 0f 0b 90 e9 7c ff ff ff e8 e2 d1 38 00 90 <0f> 0b 90 31 c0 48 bb f8 f8 f8 f8 f8 f8 f8 f8 e9 64 ff ff ff e8 c8 RSP: 0018:ffffc90005846f40 EFLAGS: 00010287 RAX: ffffffff818d62ce RBX: ffff88807e1e30f0 RCX: 0000000000100000 RDX: ffffc9001aec9000 RSI: 00000000000052e3 RDI: 00000000000052e4 RBP: ffffc90005847100 R08: ffffffff9031adf7 R09: 1ffffffff20635be R10: dffffc0000000000 R11: fffffbfff20635bf R12: dffffc0000000000 R13: 1ffff1100fc3c61e R14: 1ffff92000b08df0 R15: ffff88807e1e30d8 FS: 0000000000000000(0000) GS:ffff888125353000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f503095135a CR3: 0000000031bdc000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400 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:3064 [inline] hid_destroy_device+0x6b/0x1b0 drivers/hid/hid-core.c:3086 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:5407 [inline] hub_port_connect_change drivers/usb/core/hub.c:5707 [inline] port_event drivers/usb/core/hub.c:5871 [inline] hub_event+0x1bbb/0x4d30 drivers/usb/core/hub.c:5953 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