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: 900 at kernel/workqueue.c:3167 __flush_work+0x946/0xb60 kernel/workqueue.c:3167 Modules linked in: CPU: 1 PID: 900 Comm: kworker/1:2 Not tainted 6.3.0-rc2-syzkaller-00405-ga3671bd86a97 #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+0x946/0xb60 kernel/workqueue.c:3167 Code: 00 48 c7 c6 fb 3a 53 81 48 c7 c7 c0 56 79 8c e8 50 77 11 00 e9 6f fc ff ff e8 d6 a9 2f 00 0f 0b e9 63 fc ff ff e8 ca a9 2f 00 <0f> 0b 45 31 ed e9 54 fc ff ff e8 eb b2 80 00 e9 3e fb ff ff e8 b1 RSP: 0018:ffffc90004896c00 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8880759300e8 RCX: 0000000000000000 RDX: ffff88801ef03a80 RSI: ffffffff81533b36 RDI: 0000000000000001 RBP: ffffc90004896d98 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880759300e8 R13: 0000000000000001 R14: 0000000000000001 R15: ffff888075930100 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc72a975f8 CR3: 000000001d70c000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: