Warning: Permanently added '10.128.0.20' (ECDSA) to the list of known hosts. syzkaller login: [ 38.668178][ T7] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 39.027594][ T7] usb 1-1: config 0 has an invalid interface number: 118 but max is 0 [ 39.035929][ T7] usb 1-1: config 0 has no interface number 0 [ 39.043158][ T7] usb 1-1: config 0 interface 118 altsetting 0 endpoint 0x2 has invalid maxpacket 1024, setting to 64 [ 39.054491][ T7] usb 1-1: config 0 interface 118 altsetting 0 endpoint 0xC has invalid maxpacket 512, setting to 64 [ 39.066114][ T7] usb 1-1: config 0 interface 118 altsetting 0 endpoint 0xD has invalid maxpacket 512, setting to 64 [ 39.237524][ T7] usb 1-1: New USB device found, idVendor=061d, idProduct=c160, bcdDevice= f.e6 [ 39.247109][ T7] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 39.255406][ T7] usb 1-1: Product: syz [ 39.259640][ T7] usb 1-1: Manufacturer: syz [ 39.264439][ T7] usb 1-1: SerialNumber: syz [ 39.273570][ T7] usb 1-1: config 0 descriptor?? [ 39.319571][ T7] quatech2 1-1:0.118: Quatech 2nd gen USB to Serial Driver converter detected [ 39.330100][ T7] ------------[ cut here ]------------ [ 39.335783][ T7] usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType 40 [ 39.345292][ T7] WARNING: CPU: 0 PID: 7 at drivers/usb/core/urb.c:410 usb_submit_urb+0x14aa/0x1830 [ 39.354923][ T7] Modules linked in: [ 39.359067][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.13.0-rc2-syzkaller #0 [ 39.368101][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.378352][ T7] Workqueue: usb_hub_wq hub_event [ 39.383465][ T7] RIP: 0010:usb_submit_urb+0x14aa/0x1830 [ 39.389342][ T7] Code: 84 4c 01 00 00 e8 a6 14 b3 fd 4c 89 f7 e8 4e a7 1b ff 45 89 e8 44 89 e1 48 89 ea 48 89 c6 48 c7 c7 c0 09 63 86 e8 18 f1 fb 01 <0f> 0b 49 8d 4f 5c 48 b8 00 00 00 00 00 fc ff df 48 89 ca 48 89 4c [ 39.409420][ T7] RSP: 0018:ffffc9000007ee08 EFLAGS: 00010286 [ 39.416026][ T7] RAX: 0000000000000000 RBX: ffff88811a2d8058 RCX: 0000000000000000 [ 39.424358][ T7] RDX: ffff888100283680 RSI: ffffffff812a6013 RDI: fffff5200000fdb3 [ 39.432689][ T7] RBP: ffff888109f22c80 R08: 0000000000000001 R09: 0000000000000000 [ 39.441163][ T7] R10: ffffffff814b996b R11: 0000000000000000 R12: 0000000080000280 [ 39.449237][ T7] R13: 0000000000000040 R14: ffff88811a2d80a8 R15: ffff88810980a400 [ 39.458281][ T7] FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 39.467777][ T7] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.474483][ T7] CR2: 00005599d53f6160 CR3: 0000000007825000 CR4: 00000000001506f0 [ 39.482882][ T7] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.491236][ T7] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.499697][ T7] Call Trace: [ 39.503055][ T7] usb_start_wait_urb+0x101/0x4c0 [ 39.508362][ T7] ? lock_downgrade+0x6e0/0x6e0 [ 39.513603][ T7] ? fs_reclaim_acquire+0xb2/0x160 [ 39.518935][