[info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[ 13.834162][ C1] random: crng init done [?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 '10.128.0.209' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.769905][ T95] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 24.019975][ T95] usb 1-1: unable to get BOS descriptor or descriptor too short [ 24.099960][ T95] usb 1-1: config 31 has an invalid interface number: 106 but max is 0 [ 24.108367][ T95] usb 1-1: config 31 has no interface number 0 [ 24.114835][ T95] usb 1-1: config 31 interface 106 altsetting 31 endpoint 0x6 has invalid maxpacket 512, setting to 64 [ 24.126124][ T95] usb 1-1: config 31 interface 106 altsetting 31 has an invalid endpoint with address 0x0, skipping [ 24.136989][ T95] usb 1-1: config 31 interface 106 altsetting 31 endpoint 0x9 has an invalid bInterval 0, changing to 7 [ 24.148284][ T95] usb 1-1: config 31 interface 106 altsetting 31 has an invalid endpoint descriptor of length 2, skipping [ 24.160611][ T95] usb 1-1: config 31 interface 106 altsetting 31 endpoint 0xD has an invalid bInterval 19, changing to 8 [ 24.171898][ T95] usb 1-1: config 31 interface 106 altsetting 31 has a duplicate endpoint with address 0x6, skipping [ 24.182802][ T95] usb 1-1: config 31 interface 106 altsetting 31 bulk endpoint 0x4 has invalid maxpacket 64 [ 24.192951][ T95] usb 1-1: config 31 interface 106 altsetting 31 has 9 endpoint descriptors, different from the interface descriptor's value: 8 [ 24.206210][ T95] usb 1-1: config 31 interface 106 has no altsetting 0 [ 24.459939][ T95] usb 1-1: string descriptor 0 read error: -22 [ 24.466288][ T95] usb 1-1: New USB device found, idVendor=0711, idProduct=5200, bcdDevice=72.83 [ 24.475413][ T95] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 24.521871][ T95] usb 1-1: USB2VGA dongle found at address 2 [ 24.531452][ T95] usb 1-1: Allocated 8 output buffers [ 24.536966][ T95] ------------[ cut here ]------------ [ 24.543150][ T95] usb 1-1: BOGUS urb xfer, pipe 3 != type 1 [ 24.549288][ T95] WARNING: CPU: 1 PID: 95 at drivers/usb/core/urb.c:478 usb_submit_urb+0x1188/0x1460 [ 24.558782][ T95] Kernel panic - not syncing: panic_on_warn set ... [ 24.565365][ T95] CPU: 1 PID: 95 Comm: kworker/1:2 Not tainted 5.6.0-rc3-syzkaller #0 [ 24.573512][ T95] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.583671][ T95] Workqueue: usb_hub_wq hub_event [ 24.588689][ T95] Call Trace: [ 24.592022][ T95] dump_stack+0xef/0x16e [ 24.596264][ T95] ? usb_submit_urb+0x1090/0x1460 [ 24.601289][ T95] panic+0x2aa/0x6e1 [ 24.605221][ T95] ? add_taint.cold+0x16/0x16 [ 24.610842][ T95] ? __probe_kernel_read+0x188/0x1d0 [ 24.616118][ T95] ? __warn.cold+0x14/0x30 [ 24.620522][ T95] ? __warn+0xd5/0x1c8 [ 24.624582][ T95] ? usb_submit_urb+0x1188/0x1460 [ 24.629640][ T95] __warn.cold+0x2f/0x30 [ 24.633871][ T95] ? usb_submit_urb+0x1188/0x1460 [ 24.638897][ T95] report_bug+0x27b/0x2f0 [ 24.643223][ T95] do_error_trap+0x12b/0x1e0 [ 24.647799][ T95] ? usb_submit_urb+0x1188/0x1460 [ 24.652862][ T95] do_invalid_op+0x32/0x40 [ 24.657316][ T95] ? usb_submit_urb+0x1188/0x1460 [ 24.662378][ T95] invalid_op+0x23/0x30 [ 24.666581][ T95] RIP: 0010:usb_submit_urb+0x1188/0x1460 [ 24.672197][ T95] Code: 4d 85 ed 74 46 e8 18 ce dd fd 4c 89 f7 e8 d0 5c 17 ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 e0 e7 3b 86 e8 a0 5f b2 fd <0f> 0b e9 20 f4 ff ff e8 ec cd dd fd 0f 1f 44 00 00 e8 e2 cd dd fd [ 24.691895][ T95] RSP: 0018:ffff8881d59ded50 EFLAGS: 00010286 [ 24.697997][ T95] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 24.705973][ T95] RDX: 0000000000000000 RSI: ffffffff812977dd RDI: ffffed103ab3bd9c [ 24.713989][ T95] RBP: ffff8881ce3ce0f0 R08: ffff8881d736c980 R09: ffffed103b666248 [ 24.722389][ T95] R10: ffffed103b666247 R11: ffff8881db33123f R12: 0000000000000003 [ 24.730351][ T95] R13: ffff8881d096d2d0 R14: ffff8881ce5be0a0 R15: ffff8881d5abf900 [ 24.738373][ T95] ? vprintk_func+0x7d/0x113 [ 24.743072][ T95] sisusb_send_bulk_msg.constprop.0+0x8b4/0x1070 [ 24.749383][ T95] ? preempt_schedule_common+0x44/0x60 [ 24.754842][ T95] ? sisusb_recv_bulk_msg.constprop.0+0x830/0x830 [ 24.761252][ T95] ? wake_up_klogd+0x41/0x50 [ 24.765831][ T95] ? vprintk_emit+0x18c/0x3d0 [ 24.770497][ T95] sisusb_send_bridge_packet.constprop.0+0x11c/0x240 [ 24.777545][ T95] ? sisusb_send_bulk_msg.constprop.0+0x1070/0x1070 [ 24.784110][ T95] sisusb_do_init_gfxdevice+0x8a/0x450 [ 24.790591][ T95] ? sisusb_read_memio_word+0x2f0/0x2f0 [ 24.796154][ T95] ? dev_printk_emit+0xba/0xf1 [ 24.800896][ T95] ? dev_vprintk_emit+0x541/0x541 [ 24.805895][ T95] ? really_probe+0x290/0xac0 [ 24.810548][ T95] sisusb_init_gfxdevice+0xe1/0x18d0 [ 24.815812][ T95] ? hub_event+0x21cb/0x4300 [ 24.820522][ T95] ? worker_thread+0x96/0xe20 [ 24.825176][ T95] ? kthread+0x318/0x420 [ 24.829436][ T95] ? __dev_printk+0x1db/0x203 [ 24.834108][ T95] ? sisusb_set_default_mode+0xa50/0xa50 [ 24.839718][ T95] ? _dev_info+0xd7/0x109 [ 24.844041][ T95] ? _dev_notice+0x109/0x109 [ 24.848625][ T95] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 24.853903][ T95] ? lockdep_init_map+0x1b0/0x5e0 [ 24.858924][ T95] ? kobject_get+0xbc/0x150 [ 24.863468][ T95] sisusb_probe+0x902/0xaf4 [ 24.868767][ T95] usb_probe_interface+0x310/0x800 [ 24.873874][ T95] ? usb_probe_device+0x230/0x230 [ 24.878893][ T95] really_probe+0x290/0xac0 [ 24.883384][ T95] driver_probe_device+0x223/0x350 [ 24.888530][ T95] __device_attach_driver+0x1d1/0x290 [ 24.893885][ T95] ? driver_allows_async_probing+0x160/0x160 [ 24.899843][ T95] bus_for_each_drv+0x162/0x1e0 [ 24.904713][ T95] ? bus_rescan_devices+0x20/0x20 [ 24.909715][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 24.915500][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 24.920766][ T95] __device_attach+0x217/0x390 [ 24.925505][ T95] ? device_bind_driver+0xd0/0xd0 [ 24.930510][ T95] bus_probe_device+0x1e4/0x290 [ 24.935340][ T95] device_add+0x1459/0x1bf0 [ 24.939993][ T95] ? wait_for_completion+0x3c0/0x3c0 [ 24.945299][ T95] ? device_link_remove+0x110/0x110 [ 24.950478][ T95] usb_set_configuration+0xe47/0x17d0 [ 24.955869][ T95] usb_generic_driver_probe+0x9d/0xe0 [ 24.961217][ T95] usb_probe_device+0xd9/0x230 [ 24.965979][ T95] ? usb_suspend+0x5f0/0x5f0 [ 24.970564][ T95] really_probe+0x290/0xac0 [ 24.975049][ T95] driver_probe_device+0x223/0x350 [ 24.980179][ T95] __device_attach_driver+0x1d1/0x290 [ 24.985534][ T95] ? driver_allows_async_probing+0x160/0x160 [ 24.991495][ T95] bus_for_each_drv+0x162/0x1e0 [ 24.996544][ T95] ? bus_rescan_devices+0x20/0x20 [ 25.001547][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 25.007367][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 25.012738][ T95] __device_attach+0x217/0x390 [ 25.017502][ T95] ? device_bind_driver+0xd0/0xd0 [ 25.022512][ T95] bus_probe_device+0x1e4/0x290 [ 25.027348][ T95] device_add+0x1459/0x1bf0 [ 25.031829][ T95] ? device_link_remove+0x110/0x110 [ 25.037006][ T95] usb_new_device.cold+0x540/0xcd0 [ 25.042092][ T95] hub_event+0x21cb/0x4300 [ 25.046484][ T95] ? hub_port_debounce+0x350/0x350 [ 25.051642][ T95] ? find_held_lock+0x2d/0x110 [ 25.056406][ T95] ? mark_held_locks+0xe0/0xe0 [ 25.061158][ T95] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 25.066687][ T95] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 25.071953][ T95] process_one_work+0x94b/0x1620 [ 25.077501][ T95] ? pwq_dec_nr_in_flight+0x310/0x310 [ 25.082984][ T95] ? do_raw_spin_lock+0x129/0x290 [ 25.087986][ T95] worker_thread+0x96/0xe20 [ 25.092483][ T95] ? process_one_work+0x1620/0x1620 [ 25.097716][ T95] kthread+0x318/0x420 [ 25.101766][ T95] ? kthread_create_on_node+0xf0/0xf0 [ 25.107120][ T95] ret_from_fork+0x24/0x30 [ 25.112200][ T95] Kernel Offset: disabled [ 25.116557][ T95] Rebooting in 86400 seconds..