usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1: Product: syz usb 1-1: Manufacturer: syz usb 1-1: SerialNumber: syz usb 1-1: config 0 descriptor?? smsusb:smsusb_probe: board id=8, interface number 0 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 1065 at kernel/workqueue.c:3083 __flush_work+0x196/0x1a0 Modules linked in: CPU: 1 PID: 1065 Comm: kworker/1:2 Not tainted 5.15.103-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Workqueue: usb_hub_wq hub_event RIP: 0010:__flush_work+0x196/0x1a0 kernel/workqueue.c:3083 Code: 00 00 00 48 3b 8c 24 20 01 00 00 75 21 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 43 79 2d 00 0f 0b eb ab e8 3a 79 2d 00 <0f> 0b eb a2 e8 41 d9 cf 08 90 53 48 89 fb e8 27 79 2d 00 48 89 df RSP: 0018:ffffc900045c6880 EFLAGS: 00010293 RAX: ffffffff8152ff96 RBX: ffff88801d31e100 RCX: ffff88801c17ba00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900045c6948 RBP: ffffc900045c69f0 R08: dffffc0000000000 R09: ffffc900045c68a0 R10: 0000000000000001 R11: dffffc0000000001 R12: ffff88801d31e0e8 R13: dffffc0000000000 R14: 1ffff920008b8d10 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc4a723890 CR3: 000000007ac88000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __cancel_work_timer+0x519/0x6a0 kernel/workqueue.c:3177