[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.1' (ECDSA) to the list of known hosts. syzkaller login: [ 60.360893][ T5] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 60.610811][ T5] usb 1-1: Using ep0 maxpacket: 8 [ 60.731034][ T5] usb 1-1: config 0 has an invalid interface number: 45 but max is 1 [ 60.739102][ T5] usb 1-1: config 0 has no interface number 1 [ 60.745503][ T5] usb 1-1: config 0 interface 45 altsetting 0 bulk endpoint 0x81 has invalid maxpacket 64 [ 60.755780][ T5] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x1 has an invalid bInterval 175, changing to 11 [ 60.767115][ T5] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid maxpacket 1332, setting to 1024 [ 60.930902][ T5] usb 1-1: New USB device found, idVendor=0846, idProduct=4300, bcdDevice= 3.cf [ 60.939937][ T5] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 60.948277][ T5] usb 1-1: Product: syz [ 60.952618][ T5] usb 1-1: Manufacturer: syz [ 60.957230][ T5] usb 1-1: SerialNumber: syz [ 60.965744][ T5] usb 1-1: config 0 descriptor?? [ 60.991138][ T8437] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 61.013591][ T5] ------------[ cut here ]------------ [ 61.019072][ T5] usb 1-1: BOGUS urb xfer, pipe 3 != type 1 [ 61.026681][ T5] WARNING: CPU: 0 PID: 5 at drivers/usb/core/urb.c:502 usb_submit_urb+0xed2/0x18a0 [ 61.036036][ C0] usb 1-1: RX USB error -71. [ 61.040756][ T5] Modules linked in: [ 61.044638][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Tainted: G W 5.13.0-next-20210709-syzkaller #0 [ 61.055105][ C0] usb 1-1: RX USB error -71. [ 61.059814][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.070287][ T5] Workqueue: usb_hub_wq hub_event [ 61.075405][ C0] usb 1-1: RX USB error -71. [ 61.080076][ T5] RIP: 0010:usb_submit_urb+0xed2/0x18a0 [ 61.085993][ T5] Code: 7c 24 18 e8 c0 20 20 fc 48 8b 7c 24 18 e8 c6 31 0c ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 c0 9d 27 8a e8 25 b5 91 03 <0f> 0b e9 58 f8 ff ff e8 92 20 20 fc 48 81 c5 48 06 00 00 e9 84 f7 [ 61.105696][ C0] usb 1-1: RX USB error -71. [ 61.110327][ T5] RSP: 0018:ffffc90000ca6f50 EFLAGS: 00010286 [ 61.116507][ T5] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 61.124559][ C0] usb 1-1: RX USB error -71. [ 61.129205][ T5] RDX: ffff888010a58000 RSI: ffffffff815d77d5 RDI: fffff52000194ddc [ 61.137704][ T5] RBP: ffff8881421e6100 R08: 0000000000000000 R09: 0000000000000000 [ 61.145776][ C0] usb 1-1: RX USB error -71. [ 61.150479][ T5] R10: ffffffff815d160e R11: 0000000000000000 R12: 0000000000000003 [ 61.158797][ T5] R13: ffff888146ecda00 R14: 0000000000000003 R15: ffff88802147fb00 [ 61.166833][ C0] usb 1-1: RX USB error -71. [ 61.171521][ T5] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 61.180432][ T5] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.187052][ C0] usb 1-1: RX USB error -71. [