Warning: Permanently added '10.128.1.120' (ECDSA) to the list of known hosts. syzkaller login: [ 66.751201][ T26] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 66.991144][ T26] usb 1-1: Using ep0 maxpacket: 16 [ 67.271309][ T26] usb 1-1: New USB device found, idVendor=2040, idProduct=c0a0, bcdDevice= 9.80 [ 67.280520][ T26] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 67.288660][ T26] usb 1-1: Product: syz [ 67.292896][ T26] usb 1-1: Manufacturer: syz [ 67.297487][ T26] usb 1-1: SerialNumber: syz [ 67.305323][ T26] usb 1-1: config 0 descriptor?? [ 67.344028][ T26] smsusb:smsusb_probe: board id=8, interface number 0 [ 67.351101][ T26] ------------[ cut here ]------------ [ 67.356582][ T26] WARNING: CPU: 1 PID: 26 at kernel/workqueue.c:3066 __flush_work+0x196/0x1a0 [ 67.365522][ T26] Modules linked in: [ 67.369460][ T26] CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 6.1.20-syzkaller #0 [ 67.377456][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 67.387569][ T26] Workqueue: usb_hub_wq hub_event [ 67.392709][ T26] RIP: 0010:__flush_work+0x196/0x1a0 [ 67.398020][ T26] 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 23 ab 30 00 0f 0b eb ab e8 1a ab 30 00 <0f> 0b eb a2 e8 f1 97 30 09 90 53 48 89 fb e8 07 ab 30 00 48 89 df [ 67.417702][ T26] RSP: 0018:ffffc90000a1e880 EFLAGS: 00010293 [ 67.423838][ T26] RAX: ffffffff8159b606 RBX: ffff888022c24100 RCX: ffff88801278ba80 [ 67.431859][ T26] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90000a1e948 [ 67.439853][ T26] RBP: ffffc90000a1e9f0 R08: dffffc0000000000 R09: ffffc90000a1e8a0 [ 67.447965][ T26] R10: 0000000000000001 R11: dffffc0000000001 R12: ffff888022c240e8 [ 67.456018][ T26] R13: dffffc0000000000 R14: 1ffff92000143d10 R15: 0000000000000001 [ 67.464059][ T26] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 67.473089][ T26] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.479717][ T26] CR2: 00005597f70ce978 CR3: 000000007dc8e000 CR4: 00000000003506e0 [ 67.487759][ T26] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.495784][ T26] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.503857][ T26] Call Trace: [ 67.507160][ T26] [ 67.510109][ T26] ? flush_work+0x20/0x20 [ 67.514535][ T26] ? print_irqtrace_events+0x210/0x210 [ 67.520053][ T26] ? __cancel_work_timer+0x467/0x6a0 [ 67.525400][ T26] __cancel_work_timer+0x519/0x6a0 [ 67.530535][ T26] ? usb_set_configuration+0x19dd/0x2020 [ 67.536233][ T26] ? usb_generic_driver_probe+0x84/0x140 [ 67.541966][ T26] ? usb_probe