[ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Found device /dev/ttyS0. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Started OpenBSD Secure Shell server. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.99' (ECDSA) to the list of known hosts. syzkaller login: [ 47.990450][ T2938] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 48.410386][ T2938] usb 1-1: unable to get BOS descriptor or descriptor too short [ 48.500521][ T2938] usb 1-1: config 129 has an invalid interface number: 90 but max is 2 [ 48.509091][ T2938] usb 1-1: config 129 has an invalid interface descriptor of length 2, skipping [ 48.519587][ T2938] usb 1-1: config 129 contains an unexpected descriptor of type 0x2, skipping [ 48.529301][ T2938] usb 1-1: config 129 has an invalid interface descriptor of length 2, skipping [ 48.539156][ T2938] usb 1-1: config 129 has an invalid interface number: 120 but max is 2 [ 48.548587][ T2938] usb 1-1: config 129 has an invalid interface number: 143 but max is 2 [ 48.557774][ T2938] usb 1-1: config 129 contains an unexpected descriptor of type 0x2, skipping [ 48.567521][ T2938] usb 1-1: config 129 has an invalid descriptor of length 1, skipping remainder of the config [ 48.578665][ T2938] usb 1-1: config 129 has no interface number 0 [ 48.585665][ T2938] usb 1-1: config 129 has no interface number 1 [ 48.592818][ T2938] usb 1-1: config 129 has no interface number 2 [ 48.599076][ T2938] usb 1-1: config 129 interface 90 altsetting 9 has a duplicate endpoint with address 0x7, skipping [ 48.611506][ T2938] usb 1-1: config 129 interface 90 altsetting 9 endpoint 0xB has invalid maxpacket 512, setting to 64 [ 48.623374][ T2938] usb 1-1: config 129 interface 90 altsetting 9 has 4 endpoint descriptors, different from the interface descriptor's value: 15 [ 48.637516][ T2938] usb 1-1: config 129 interface 120 altsetting 6 endpoint 0x6 has invalid maxpacket 1036, setting to 1024 [ 48.649824][ T2938] usb 1-1: config 129 interface 120 altsetting 6 endpoint 0xC has invalid maxpacket 512, setting to 64 [ 48.661696][ T2938] usb 1-1: config 129 interface 120 altsetting 6 bulk endpoint 0x4 has invalid maxpacket 32 [ 48.672888][ T2938] usb 1-1: config 129 interface 120 altsetting 6 has a duplicate endpoint with address 0xC, skipping [ 48.684937][ T2938] usb 1-1: config 129 interface 120 altsetting 6 has a duplicate endpoint with address 0xC, skipping [ 48.696714][ T2938] usb 1-1: config 129 interface 120 altsetting 6 endpoint 0xD has an invalid bInterval 129, changing to 11 [ 48.709087][ T2938] usb 1-1: config 129 interface 120 altsetting 6 has 8 endpoint descriptors, different from the interface descriptor's value: 7 [ 48.723192][ T2938] usb 1-1: config 129 interface 143 altsetting 252 has 0 endpoint descriptors, different from the interface descriptor's value: 12 [ 48.737689][ T2938] usb 1-1: config 129 interface 90 has no altsetting 0 [ 48.745465][ T2938] usb 1-1: config 129 interface 120 has no altsetting 0 [ 48.753380][ T2938] usb 1-1: config 129 interface 143 has no altsetting 0 [ 49.000290][ T2938] usb 1-1: string descriptor 0 read error: -22 [ 49.006817][ T2938] usb 1-1: New USB device found, idVendor=0711, idProduct=0950, bcdDevice=e2.40 [ 49.017305][ T2938] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 49.073055][ T2938] usb 1-1: USB2VGA dongle found at address 2 [ 49.101707][ T2938] usb 1-1: Allocated 8 output buffers [ 49.107145][ T2938] ------------[ cut here ]------------ [ 49.116551][ T2938] usb 1-1: BOGUS urb xfer, pipe 3 != type 1 [ 49.123729][ T2938] WARNING: CPU: 1 PID: 2938 at drivers/usb/core/urb.c:494 usb_submit_urb+0xacd/0x1550 [ 49.133968][ T2938] Modules linked in: [ 49.137871][ T2938] CPU: 1 PID: 2938 Comm: kworker/1:2 Not tainted 5.13.0-rc3-syzkaller #0 [ 49.147308][ T2938] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.158355][ T2938] Workqueue: usb_hub_wq hub_event [ 49.164078][ T2938] RIP: 0010:usb_submit_urb+0xacd/0x1550 [ 49.169637][ T2938] Code: d8 48 c1 e8 03 42 8a 04 28 84 c0 0f 85 bd 07 00 00 44 8b 03 48 c7 c7 80 86 e1 8a 4c 89 f6 4c 89 fa 89 e9 31 c0 e8 83 cb 8f fb <0f> 0b 4c 8b 74 24 30 45 89 f7 4c 89 ff 48 c7 c6 70 e1 8d 8d e8 8a [ 49.190943][ T2938] RSP: 0018:ffffc9000185d480 EFLAGS: 00010246 [ 49.197019][ T2938] RAX: 4f27e12fa8451f00 RBX: ffffffff8ae184ac RCX: ffff88801ed69c40 [ 49.205947][ T2938] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 49.214756][ T2938] RBP: 0000000000000003 R08: ffffffff81655632 R09: ffffed1017365f90 [ 49.223400][ T2938] R10: ffffed1017365f90 R11: 0000000000000000 R12: ffff888028966000 [ 49.232104][ T2938] R13: dffffc0000000000 R14: ffffffff8ae226e0 R15: ffff88814772e870 [ 49.240721][ T2938] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 49.249654][ T2938] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.257256][ T2938] CR2: 00007ff71cbde000 CR3: 000000001730e000 CR4: 00000000001506e0 [ 49.265843][ T2938] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [