[info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 15.859820][ C1] random: crng init done [....] 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 '10.128.1.59' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 39.429611][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 39.669585][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 39.789763][ T12] usb 1-1: config 0 has an invalid interface number: 11 but max is 0 [ 39.798165][ T12] usb 1-1: config 0 contains an unexpected descriptor of type 0x1, skipping [ 39.807318][ T12] usb 1-1: config 0 has no interface number 0 [ 39.813474][ T12] usb 1-1: config 0 interface 11 altsetting 0 endpoint 0x5 has invalid maxpacket 1010, setting to 64 [ 39.824395][ T12] usb 1-1: config 0 interface 11 altsetting 0 endpoint 0x4 has invalid maxpacket 843, setting to 64 [ 39.836169][ T12] usb 1-1: config 0 interface 11 altsetting 0 endpoint 0x8D has invalid maxpacket 279, setting to 64 [ 39.847277][ T12] usb 1-1: config 0 interface 11 altsetting 0 endpoint 0xB has invalid maxpacket 415, setting to 64 [ 39.858097][ T12] usb 1-1: config 0 interface 11 altsetting 0 endpoint 0x1 has invalid maxpacket 428, setting to 64 [ 39.869070][ T12] usb 1-1: config 0 interface 11 altsetting 0 endpoint 0x7 has invalid maxpacket 389, setting to 64 [ 39.880294][ T12] usb 1-1: config 0 interface 11 altsetting 0 endpoint 0xF has invalid maxpacket 493, setting to 64 [ 39.891220][ T12] usb 1-1: config 0 interface 11 altsetting 0 has a duplicate endpoint with address 0x5, skipping [ 39.901964][ T12] usb 1-1: config 0 interface 11 altsetting 0 has a duplicate endpoint with address 0x4, skipping [ 39.912849][ T12] usb 1-1: config 0 interface 11 altsetting 0 endpoint 0x8 has invalid maxpacket 506, setting to 64 [ 39.924371][ T12] usb 1-1: config 0 interface 11 altsetting 0 has a duplicate endpoint with address 0xB, skipping [ 39.935289][ T12] usb 1-1: config 0 interface 11 altsetting 0 endpoint 0x9 has invalid maxpacket 495, setting to 64 [ 39.946540][ T12] usb 1-1: config 0 interface 11 altsetting 0 has a duplicate endpoint with address 0x4, skipping [ 39.957207][ T12] usb 1-1: config 0 interface 11 altsetting 0 has an invalid endpoint with address 0x80, skipping [ 39.968165][ T12] usb 1-1: New USB device found, idVendor=0711, idProduct=0900, bcdDevice=14.ed [ 39.977251][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 39.986846][ T12] usb 1-1: config 0 descriptor?? executing program [ 40.269682][ T12] usb 1-1: string descriptor 0 read error: -71 [ 40.277490][ T12] usb 1-1: USB2VGA dongle found at address 2 [ 40.286592][ T12] usb 1-1: Allocated 8 output buffers [ 40.292029][ T12] ------------[ cut here ]------------ [ 40.297485][ T12] usb 1-1: BOGUS urb xfer, pipe 3 != type 1 [ 40.303553][ T12] WARNING: CPU: 0 PID: 12 at drivers/usb/core/urb.c:477 usb_submit_urb+0x1188/0x13b0 [ 40.313005][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 40.319586][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.4.0-syzkaller #0 [ 40.328260][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.338315][ T12] Workqueue: usb_hub_wq hub_event [ 40.343323][ T12] Call Trace: [ 40.346646][ T12] dump_stack+0xef/0x16e [ 40.350868][ T12] ? usb_submit_urb+0x1110/0x13b0 [ 40.355884][ T12] panic+0x2aa/0x6e1 [ 40.359756][ T12] ? add_taint.cold+0x16/0x16 [ 40.364421][ T12] ? __probe_kernel_read+0x188/0x1d0 [ 40.369685][ T12] ? __warn.cold+0x14/0x30 [ 40.374076][ T12] ? __warn+0xd5/0x1c8 [ 40.378128][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 40.383127][ T12] __warn.cold+0x2f/0x30 [ 40.387356][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 40.392355][ T12] report_bug+0x27b/0x2f0 [ 40.396661][ T12] do_error_trap+0x12b/0x1e0 [ 40.401227][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 40.406238][ T12] do_invalid_op+0x32/0x40 [ 40.410802][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 40.415805][ T12] invalid_op+0x23/0x30 [ 40.419949][ T12] RIP: 0010:usb_submit_urb+0x1188/0x13b0 [ 40.425555][ T12] Code: 4d 85 ed 74 2c e8 a8 84 e9 fd 4c 89 f7 e8 20 74 1d ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 00 29 15 86 e8 10 b3 be fd <0f> 0b e9 20 f4 ff ff e8 7c 84 e9 fd 4c 89 f2 48 b8 00 00 00 00 00 [ 40.445145][ T12] RSP: 0018:ffff8881da626d70 EFLAGS: 00010286 [ 40.451189][ T12] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 40.459136][ T12] RDX: 0000000000000000 RSI: ffffffff8128ebcd RDI: ffffed103b4c4da0 [ 40.467091][ T12] RBP: ffff8881cffcb1e0 R08: ffff8881da611880 R09: fffffbfff11aeca6 [ 40.475052][ T12] R10: fffffbfff11aeca5 R11: ffffffff88d7652f R12: 0000000000000003 [ 40.483000][ T12] R13: ffff8881ca587930 R14: ffff8881cffca0a0 R15: ffff8881d6312200 [ 40.490967][ T12] ? vprintk_func+0x7d/0x113 [ 40.495537][ T12] sisusb_send_bulk_msg.constprop.0+0x88a/0x1030 [ 40.501839][ T12] ? sisusb_recv_bulk_msg.constprop.0+0x830/0x830 [ 40.508249][ T12] ? wake_up_klogd+0x41/0x50 [ 40.512835][ T12] ? vprintk_emit+0x18c/0x3d0 [ 40.517545][ T12] sisusb_send_bridge_packet.constprop.0+0x11c/0x240 [ 40.524244][ T12] ? sisusb_send_bulk_msg.constprop.0+0x1030/0x1030 [ 40.530861][ T12] sisusb_do_init_gfxdevice+0x8a/0x450 [ 40.536306][ T12] ? sisusb_read_memio_word+0x2f0/0x2f0 [ 40.541832][ T12] ? dev_printk_emit+0xba/0xf1 [ 40.546578][ T12] ? dev_vprintk_emit+0x541/0x541 [ 40.551587][ T12] ? really_probe+0x281/0x6d0 [ 40.556256][ T12] sisusb_init_gfxdevice+0xe1/0x18d0 [ 40.561524][ T12] ? hub_event+0x1e59/0x3860 [ 40.566102][ T12] ? worker_thread+0x96/0xe20 [ 40.570762][ T12] ? kthread+0x318/0x420 [ 40.575014][ T12] ? __dev_printk+0x1db/0x203 [ 40.579688][ T12] ? sisusb_set_default_mode+0xa50/0xa50 [ 40.585318][ T12] ? _dev_info+0xd7/0x109 [ 40.589624][ T12] ? _dev_notice+0x109/0x109 [ 40.594206][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 40.599470][ T12] ? lockdep_init_map+0x1b0/0x5e0 [ 40.604497][ T12] ? kobject_get+0xbc/0x150 [ 40.608991][ T12] sisusb_probe+0x902/0xaf4 [ 40.613474][ T12] usb_probe_interface+0x305/0x7a0 [ 40.618624][ T12] ? usb_probe_device+0x100/0x100 [ 40.623645][ T12] really_probe+0x281/0x6d0 [ 40.628147][ T12] driver_probe_device+0x104/0x210 [ 40.633241][ T12] __device_attach_driver+0x1c2/0x220 [ 40.638596][ T12] ? driver_allows_async_probing+0x160/0x160 [ 40.644609][ T12] bus_for_each_drv+0x162/0x1e0 [ 40.649438][ T12] ? bus_rescan_devices+0x20/0x20 [ 40.654445][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 40.660237][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 40.665500][ T12] __device_attach+0x217/0x360 [ 40.670243][ T12] ? device_bind_driver+0xd0/0xd0 [ 40.675244][ T12] bus_probe_device+0x1e4/0x290 [ 40.680073][ T12] device_add+0x1480/0x1c20 [ 40.684556][ T12] ? wait_for_completion+0x3c0/0x3c0 [ 40.689830][ T12] ? device_links_flush_sync_list+0x350/0x350 [ 40.695875][ T12] usb_set_configuration+0xe67/0x1740 [ 40.701229][ T12] generic_probe+0x9d/0xd5 [ 40.705724][ T12] usb_probe_device+0x99/0x100 [ 40.710475][ T12] ? usb_suspend+0x620/0x620 [ 40.715772][ T12] really_probe+0x281/0x6d0 [ 40.720269][ T12] driver_probe_device+0x104/0x210 [ 40.725360][ T12] __device_attach_driver+0x1c2/0x220 [ 40.730799][ T12] ? driver_allows_async_probing+0x160/0x160 [ 40.736751][ T12] bus_for_each_drv+0x162/0x1e0 [ 40.741589][ T12] ? bus_rescan_devices+0x20/0x20 [ 40.746606][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 40.752397][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 40.757672][ T12] __device_attach+0x217/0x360 [ 40.762422][ T12] ? device_bind_driver+0xd0/0xd0 [ 40.767431][ T12] bus_probe_device+0x1e4/0x290 [ 40.772272][ T12] device_add+0x1480/0x1c20 [ 40.777113][ T12] ? device_links_flush_sync_list+0x350/0x350 [ 40.783165][ T12] usb_new_device.cold+0x6a4/0xe79 [ 40.788268][ T12] hub_event+0x1e59/0x3860 [ 40.792667][ T12] ? hub_port_debounce+0x260/0x260 [ 40.797850][ T12] ? find_held_lock+0x2d/0x110 [ 40.802589][ T12] ? mark_held_locks+0xe0/0xe0 [ 40.807329][ T12] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 40.812849][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 40.818160][ T12] process_one_work+0x92b/0x1530 [ 40.823356][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 40.828748][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 40.833759][ T12] worker_thread+0x96/0xe20 [ 40.838258][ T12] ? process_one_work+0x1530/0x1530 [ 40.843433][ T12] kthread+0x318/0x420 [ 40.847494][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 40.852842][ T12] ret_from_fork+0x24/0x30 [ 40.858190][ T12] Kernel Offset: disabled [ 40.862543][ T12] Rebooting in 86400 seconds..