[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.228' (ECDSA) to the list of known hosts. syzkaller login: [ 54.951322][ T20] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 55.201167][ T20] usb 1-1: Using ep0 maxpacket: 16 [ 55.321179][ T20] usb 1-1: config 0 has an invalid interface number: 251 but max is 1 [ 55.331142][ T20] usb 1-1: config 0 contains an unexpected descriptor of type 0x1, skipping [ 55.339830][ T20] usb 1-1: config 0 has an invalid interface number: 252 but max is 1 [ 55.349483][ T20] usb 1-1: config 0 has no interface number 0 [ 55.356611][ T20] usb 1-1: config 0 has no interface number 1 [ 55.363968][ T20] usb 1-1: config 0 interface 251 altsetting 0 endpoint 0xC has an invalid bInterval 42, changing to 9 [ 55.375952][ T20] usb 1-1: config 0 interface 251 altsetting 0 endpoint 0x1 has invalid maxpacket 1024, setting to 64 [ 55.388184][ T20] usb 1-1: config 0 interface 251 altsetting 0 has an invalid endpoint with address 0x0, skipping [ 55.399691][ T20] usb 1-1: config 0 interface 251 altsetting 0 endpoint 0xE has invalid maxpacket 512, setting to 64 [ 55.411450][ T20] usb 1-1: config 0 interface 251 altsetting 0 endpoint 0xD has an invalid bInterval 0, changing to 7 [ 55.423034][ T20] usb 1-1: config 0 interface 251 altsetting 0 has an invalid endpoint with address 0x0, skipping [ 55.434170][ T20] usb 1-1: config 0 interface 251 altsetting 0 has a duplicate endpoint with address 0x5, skipping [ 55.446064][ T20] usb 1-1: config 0 interface 251 altsetting 0 has a duplicate endpoint with address 0x7, skipping [ 55.457503][ T20] usb 1-1: config 0 interface 251 altsetting 0 has a duplicate endpoint with address 0xD, skipping [ 55.468928][ T20] usb 1-1: config 0 interface 251 altsetting 0 has an invalid endpoint with address 0x80, skipping [ 55.480175][ T20] usb 1-1: config 0 interface 251 altsetting 0 has a duplicate endpoint with address 0x7, skipping [ 55.491624][ T20] usb 1-1: New USB device found, idVendor=0711, idProduct=0950, bcdDevice=5e.14 [ 55.500724][ T20] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 55.512106][ T20] usb 1-1: config 0 descriptor?? [ 55.556150][ T20] usb 1-1: USB2VGA dongle found at address 2 [ 55.578774][ T20] usb 1-1: Allocated 8 output buffers [ 55.584646][ T20] ------------[ cut here ]------------ [ 55.590119][ T20] usb 1-1: BOGUS urb xfer, pipe 3 != type 1 [ 55.600328][ T20] WARNING: CPU: 1 PID: 20 at drivers/usb/core/urb.c:493 usb_submit_urb+0xd27/0x1540 [ 55.610225][ T20] Modules linked in: [ 55.615351][ T20] CPU: 1 PID: 20 Comm: kworker/1:0 Not tainted 5.12.0-rc4-syzkaller #0 [ 55.623682][ T20] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.634299][ T20] Workqueue: usb_hub_wq hub_event [ 55.639575][ T20] RIP: 0010:usb_submit_urb+0xd27/0x1540 [ 55.645444][ T20] Code: 84 d4 02 00 00 e8 99 95 33 fc 4c 89 ef e8 01 94 10 ff 41 89 d8 44 89 e1 4c 89 f2 48 89 c6 48 c7 c7 00 dc 04 8a e8 e6 7c 81 03 <0f> 0b e9 81 f8 ff ff e8 6d 95 33 fc 48 81 c5 38 06 00 00 e9 ad f7 [ 55.665340][ T20] RSP: 0018:ffffc90000da6dc8 EFLAGS: 00010282 [ 55.671720][ T20] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 55.679948][ T20] RDX: ffff888011218000 RSI: ffffffff815c4cf5 RDI: fffff520001b4dab [ 55.688147][ T20] RBP: ffff8880212681e0 R08: 0000000000000000 R09: 0000000000000000 [ 55.696222][ T20] R10: ffffffff815bda8e R11: 0000000000000000 R12: 0000000000000003 [ 55.704281][ T20] R13: ff