INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.233' (ECDSA) to the list of known hosts. syzkaller login: [ 25.027057][ T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 25.267036][ T83] usb 1-1: Using ep0 maxpacket: 32 [ 25.427101][ T83] usb 1-1: unable to get BOS descriptor or descriptor too short [ 25.507127][ T83] usb 1-1: config 251 has an invalid interface number: 12 but max is 3 [ 25.515801][ T83] usb 1-1: config 251 contains an unexpected descriptor of type 0x1, skipping [ 25.524756][ T83] usb 1-1: config 251 has an invalid interface number: 185 but max is 3 [ 25.533248][ T83] usb 1-1: config 251 has an invalid interface number: 120 but max is 3 [ 25.541660][ T83] usb 1-1: config 251 has an invalid interface number: 60 but max is 3 [ 25.549932][ T83] usb 1-1: config 251 has no interface number 0 [ 25.556151][ T83] usb 1-1: config 251 has no interface number 1 [ 25.562415][ T83] usb 1-1: config 251 has no interface number 2 [ 25.568677][ T83] usb 1-1: config 251 has no interface number 3 [ 25.574951][ T83] usb 1-1: config 251 interface 12 altsetting 8 endpoint 0xA has invalid maxpacket 611, setting to 64 [ 25.585911][ T83] usb 1-1: config 251 interface 12 altsetting 8 endpoint 0x6 has invalid maxpacket 362, setting to 64 [ 25.596869][ T83] usb 1-1: config 251 interface 12 altsetting 8 endpoint 0x2 has invalid maxpacket 408, setting to 64 [ 25.607845][ T83] usb 1-1: config 251 interface 12 altsetting 8 endpoint 0x3 has invalid maxpacket 773, setting to 64 [ 25.618819][ T83] usb 1-1: config 251 interface 185 altsetting 129 has an invalid endpoint with address 0x50, skipping [ 25.629866][ T83] usb 1-1: config 251 interface 185 altsetting 129 has an invalid endpoint with address 0x80, skipping [ 25.640916][ T83] usb 1-1: config 251 interface 185 altsetting 129 has an invalid endpoint with address 0x96, skipping [ 25.651952][ T83] usb 1-1: config 251 interface 185 altsetting 129 has an invalid endpoint with address 0x0, skipping [ 25.662926][ T83] usb 1-1: config 251 interface 185 altsetting 129 endpoint 0x2 has invalid maxpacket 628, setting to 64 [ 25.674158][ T83] usb 1-1: config 251 interface 120 altsetting 60 has an invalid endpoint with address 0x0, skipping [ 25.685024][ T83] usb 1-1: config 251 interface 120 altsetting 60 has an invalid endpoint with address 0x0, skipping [ 25.695891][ T83] usb 1-1: config 251 interface 120 altsetting 60 has an invalid endpoint with address 0x0, skipping [ 25.708240][ T83] usb 1-1: config 251 interface 120 altsetting 60 endpoint 0x6 has an invalid bInterval 95, changing to 7 [ 25.719572][ T83] usb 1-1: config 251 interface 60 altsetting 2 endpoint 0x3 has invalid maxpacket 228, setting to 64 [ 25.730543][ T83] usb 1-1: config 251 interface 60 altsetting 2 endpoint 0x9 has invalid maxpacket 179, setting to 64 [ 25.741554][ T83] usb 1-1: config 251 interface 60 altsetting 2 endpoint 0xD has an invalid bInterval 248, changing to 11 [ 25.752917][ T83] usb 1-1: config 251 interface 60 altsetting 2 has an invalid endpoint with address 0x0, skipping [ 25.763627][ T83] usb 1-1: config 251 interface 12 has no altsetting 0 [ 25.770504][ T83] usb 1-1: config 251 interface 185 has no altsetting 0 [ 25.777468][ T83] usb 1-1: config 251 interface 120 has no altsetting 0 [ 25.784395][ T83] usb 1-1: config 251 interface 60 has no altsetting 0 [ 26.027107][ T83] usb 1-1: string descriptor 0 read error: -22 [ 26.033358][ T83] usb 1-1: New USB device found, idVendor=0711, idProduct=0950, bcdDevice=a4.16 [ 26.042460][ T83] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 26.088897][ T83] usb 1-1: USB2VGA dongle found at address 2 [ 26.100209][ T83] usb 1-1: Allocated 8 output buffers [ 26.105861][ T83] ------------[ cut here ]------------ [ 26.111390][ T83] usb 1-1: BOGUS urb xfer, pipe 3 != type 1 [ 26.117433][ T83] WARNING: CPU: 1 PID: 83 at drivers/usb/core/urb.c:477 usb_submit_urb+0x1188/0x13b0 [ 26.126883][ T83] Kernel panic - not syncing: panic_on_warn set ... [ 26.133475][ T83] CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.5.0-rc1-syzkaller #0 [ 26.141615][ T83] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.151671][ T83] Workqueue: usb_hub_wq hub_event [ 26.156680][ T83] Call Trace: [ 26.159957][ T83] dump_stack+0xef/0x16e [ 26.164178][ T83] ? usb_submit_urb+0x1170/0x13b0 [ 26.169189][ T83] panic+0x2aa/0x6e1 [ 26.173066][ T83] ? add_taint.cold+0x16/0x16 [ 26.177777][ T83] ? __probe_kernel_read+0x188/0x1d0 [ 26.183055][ T83] ? __warn.cold+0x14/0x30 [ 26.187469][ T83] ? __warn+0xd5/0x1c8 [ 26.191646][ T83] ? usb_submit_urb+0x1188/0x13b0 [ 26.196656][ T83] __warn.cold+0x2f/0x30 [ 26.200885][ T83] ? usb_submit_urb+0x1188/0x13b0 [ 26.205895][ T83] report_bug+0x27b/0x2f0 [ 26.210239][ T83] do_error_trap+0x12b/0x1e0 [ 26.214836][ T83] ? usb_submit_urb+0x1188/0x13b0 [ 26.219845][ T83] do_invalid_op+0x32/0x40 [ 26.224246][ T83] ? usb_submit_urb+0x1188/0x13b0 [ 26.229271][ T83] invalid_op+0x23/0x30 [ 26.233407][ T83] RIP: 0010:usb_submit_urb+0x1188/0x13b0 [ 26.239018][ T83] Code: 4d 85 ed 74 2c e8 d8 8f e7 fd 4c 89 f7 e8 e0 2c 1d ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 40 5a 15 86 e8 50 ac bc fd <0f> 0b e9 20 f4 ff ff e8 ac 8f e7 fd 4c 89 f2 48 b8 00 00 00 00 00 [ 26.258701][ T83] RSP: 0018:ffff8881d8b06d70 EFLAGS: 00010286 [ 26.264745][ T83] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 26.272691][ T83] RDX: 0000000000000000 RSI: ffffffff81295dad RDI: ffffed103b160da0 [ 26.280652][ T83] RBP: ffff8881d15364a0 R08: ffff8881d8af1880 R09: ffffed103b666218 [ 26.288601][ T83] R10: ffffed103b666217 R11: ffff8881db3310bf R12: 0000000000000003 [ 26.296563][ T83] R13: ffff8881d1087c78 R14: ffff8881cf4f20a0 R15: ffff8881d4ee7e00 [ 26.304521][ T83] ? vprintk_func+0x7d/0x113 [ 26.309095][ T83] sisusb_send_bulk_msg.constprop.0+0x8b4/0x1070 [ 26.315402][ T83] ? sisusb_recv_bulk_msg.constprop.0+0x830/0x830 [ 26.321820][ T83] ? wake_up_klogd+0x41/0x50 [ 26.326386][ T83] ? vprintk_emit+0x18c/0x3d0 [ 26.331044][ T83] sisusb_send_bridge_packet.constprop.0+0x11c/0x240 [ 26.337697][ T83] ? sisusb_send_bulk_msg.constprop.0+0x1070/0x1070 [ 26.344348][ T83] sisusb_do_init_gfxdevice+0x8a/0x450 [ 26.349789][ T83] ? sisusb_read_memio_word+0x2f0/0x2f0 [ 26.355312][ T83] ? dev_printk_emit+0xba/0xf1 [ 26.360052][ T83] ? dev_vprintk_emit+0x541/0x541 [ 26.365139][ T83] ? really_probe+0x281/0x6d0 [ 26.369797][ T83] sisusb_init_gfxdevice+0xe1/0x18d0 [ 26.375076][ T83] ? hub_event+0x1e59/0x3860 [ 26.379746][ T83] ? worker_thread+0x96/0xe20 [ 26.384408][ T83] ? kthread+0x318/0x420 [ 26.388652][ T83] ? __dev_printk+0x1db/0x203 [ 26.393323][ T83] ? sisusb_set_default_mode+0xa50/0xa50 [ 26.398935][ T83] ? _dev_info+0xd7/0x109 [ 26.403241][ T83] ? _dev_notice+0x109/0x109 [ 26.407810][ T83] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 26.413070][ T83] ? lockdep_init_map+0x1b0/0x5e0 [ 26.418073][ T83] ? kobject_get+0xbc/0x150 [ 26.422560][ T83] sisusb_probe+0x902/0xaf4 [ 26.427047][ T83] usb_probe_interface+0x305/0x7a0 [ 26.432135][ T83] ? usb_probe_device+0x100/0x100 [ 26.437136][ T83] really_probe+0x281/0x6d0 [ 26.441617][ T83] driver_probe_device+0x104/0x210 [ 26.446703][ T83] __device_attach_driver+0x1c2/0x220 [ 26.452069][ T83] ? driver_allows_async_probing+0x160/0x160 [ 26.458035][ T83] bus_for_each_drv+0x162/0x1e0 [ 26.462872][ T83] ? bus_rescan_devices+0x20/0x20 [ 26.467872][ T83] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 26.473666][ T83] ? lockdep_hardirqs_on+0x382/0x580 [ 26.478926][ T83] __device_attach+0x217/0x360 [ 26.483676][ T83] ? device_bind_driver+0xd0/0xd0 [ 26.488676][ T83] bus_probe_device+0x1e4/0x290 [ 26.493505][ T83] device_add+0x1480/0x1c20 [ 26.497986][ T83] ? wait_for_completion+0x3c0/0x3c0 [ 26.503246][ T83] ? device_links_flush_sync_list+0x350/0x350 [ 26.509309][ T83] usb_set_configuration+0xe67/0x1740 [ 26.514672][ T83] generic_probe+0x9d/0xd5 [ 26.519066][ T83] usb_probe_device+0x99/0x100 [ 26.523806][ T83] ? usb_suspend+0x620/0x620 [ 26.528372][ T83] really_probe+0x281/0x6d0 [ 26.532850][ T83] driver_probe_device+0x104/0x210 [ 26.537938][ T83] __device_attach_driver+0x1c2/0x220 [ 26.543284][ T83] ? driver_allows_async_probing+0x160/0x160 [ 26.549253][ T83] bus_for_each_drv+0x162/0x1e0 [ 26.554079][ T83] ? bus_rescan_devices+0x20/0x20 [ 26.559196][ T83] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 26.564976][ T83] ? lockdep_hardirqs_on+0x382/0x580 [ 26.570237][ T83] __device_attach+0x217/0x360 [ 26.574975][ T83] ? device_bind_driver+0xd0/0xd0 [ 26.580031][ T83] bus_probe_device+0x1e4/0x290 [ 26.584986][ T83] device_add+0x1480/0x1c20 [ 26.589482][ T83] ? device_links_flush_sync_list+0x350/0x350 [ 26.595535][ T83] usb_new_device.cold+0x6a4/0xe79 [ 26.600641][ T83] hub_event+0x1e59/0x3860 [ 26.605044][ T83] ? hub_port_debounce+0x260/0x260 [ 26.610141][ T83] ? find_held_lock+0x2d/0x110 [ 26.614890][ T83] ? mark_held_locks+0xe0/0xe0 [ 26.619647][ T83] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 26.625185][ T83] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 26.630446][ T83] process_one_work+0x92b/0x1530 [ 26.635368][ T83] ? pwq_dec_nr_in_flight+0x310/0x310 [ 26.640721][ T83] ? do_raw_spin_lock+0x11a/0x280 [ 26.645722][ T83] worker_thread+0x96/0xe20 [ 26.650202][ T83] ? process_one_work+0x1530/0x1530 [ 26.655396][ T83] kthread+0x318/0x420 [ 26.659486][ T83] ? kthread_create_on_node+0xf0/0xf0 [ 26.664855][ T83] ret_from_fork+0x24/0x30 [ 26.670139][ T83] Kernel Offset: disabled [ 26.674496][ T83] Rebooting in 86400 seconds..