WARNING: CPU: 1 PID: 27 at kernel/workqueue.c:671 set_work_data kernel/workqueue.c:671 [inline] WARNING: CPU: 1 PID: 27 at kernel/workqueue.c:671 clear_work_data kernel/workqueue.c:734 [inline] WARNING: CPU: 1 PID: 27 at kernel/workqueue.c:671 __cancel_work_timer+0x526/0x560 kernel/workqueue.c:3560 Modules linked in: CPU: 1 PID: 27 Comm: kworker/1:1 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Workqueue: usb_hub_wq hub_event RIP: 0010:set_work_data kernel/workqueue.c:671 [inline] RIP: 0010:clear_work_data kernel/workqueue.c:734 [inline] RIP: 0010:__cancel_work_timer+0x526/0x560 kernel/workqueue.c:3560 Code: 41 5c 41 5d 41 5e 41 5f 5d c3 e8 35 65 2f 00 0f 0b e9 e2 fd ff ff e8 29 65 2f 00 e8 04 5d 2d 09 e9 92 fe ff ff e8 1a 65 2f 00 <0f> 0b 43 80 3c 2e 00 0f 85 08 ff ff ff e9 0b ff ff ff e8 e3 5b 2d RSP: 0018:ffffc90000a2eb40 EFLAGS: 00010287 RAX: ffffffff8157b746 RBX: ffff888052420208 RCX: 0000000000100000 RDX: ffffc9001b3d5000 RSI: 00000000000c9381 RDI: 00000000000c9382 RBP: ffffc90000a2ec58 R08: ffff88805242020f R09: 1ffff1100a484041 R10: dffffc0000000000 R11: ffffed100a484042 R12: 1ffff92000145d6c R13: dffffc0000000000 R14: 1ffff1100a484041 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32c1eff8 CR3: 000000002395b000 CR4: 00000000003506e0 Call Trace: smsusb_stop_streaming drivers/media/usb/siano/smsusb.c:183 [inline] smsusb_term_device+0xcb/0x220 drivers/media/usb/siano/smsusb.c:345 smsusb_init_device drivers/media/usb/siano/smsusb.c:491 [inline] smsusb_probe+0x17a0/0x1e50 drivers/media/usb/siano/smsusb.c:569 usb_probe_interface+0x5c9/0xb20 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x25b/0xb20 drivers/base/dd.c:658 __driver_probe_device+0x18c/0x330 drivers/base/dd.c:800 driver_probe_device+0x4f/0x420 drivers/base/dd.c:830 __device_attach_driver+0x2ca/0x510 drivers/base/dd.c:958 bus_for_each_drv+0x252/0x2e0 drivers/base/bus.c:459 __device_attach+0x2c2/0x420 drivers/base/dd.c:1030 bus_probe_device+0x180/0x260 drivers/base/bus.c:534 device_add+0x85b/0xc20 drivers/base/core.c:3683 usb_set_configuration+0x1a79/0x20c0 drivers/usb/core/message.c:2207 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:238 usb_probe_device+0x13d/0x270 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x25b/0xb20 drivers/base/dd.c:658 __driver_probe_device+0x18c/0x330 drivers/base/dd.c:800 driver_probe_device+0x4f/0x420 drivers/base/dd.c:830 __device_attach_driver+0x2ca/0x510 drivers/base/dd.c:958 bus_for_each_drv+0x252/0x2e0 drivers/base/bus.c:459 __device_attach+0x2c2/0x420 drivers/base/dd.c:1030 bus_probe_device+0x180/0x260 drivers/base/bus.c:534 device_add+0x85b/0xc20 drivers/base/core.c:3683 usb_new_device+0xa3c/0x1660 drivers/usb/core/hub.c:2660 hub_port_connect drivers/usb/core/hub.c:5529 [inline] hub_port_connect_change drivers/usb/core/hub.c:5669 [inline] port_event drivers/usb/core/hub.c:5833 [inline] hub_event+0x29bf/0x49f0 drivers/usb/core/hub.c:5915 process_one_work kernel/workqueue.c:2653 [inline] process_scheduled_works+0xa5d/0x15d0 kernel/workqueue.c:2730 worker_thread+0xa55/0xfc0 kernel/workqueue.c:2811 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293