[info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 17.320327][ 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 '10.128.0.175' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 30.097282][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 30.337771][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 30.457354][ T12] usb 1-1: config 0 has an invalid interface number: 207 but max is 0 [ 30.465615][ T12] usb 1-1: config 0 has no interface number 0 [ 30.471938][ T12] usb 1-1: config 0 interface 207 altsetting 0 endpoint 0xD has an invalid bInterval 0, changing to 7 [ 30.483048][ T12] usb 1-1: New USB device found, idVendor=0711, idProduct=0900, bcdDevice=bd.43 [ 30.492324][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 30.502349][ T12] usb 1-1: config 0 descriptor?? executing program [ 30.807437][ T12] usb 1-1: string descriptor 0 read error: -71 [ 30.815487][ T12] usb 1-1: USB2VGA dongle found at address 2 [ 30.825673][ T12] usb 1-1: Allocated 8 output buffers [ 30.831258][ T12] ------------[ cut here ]------------ [ 30.836832][ T12] usb 1-1: BOGUS urb xfer, pipe 3 != type 1 [ 30.843207][ T12] WARNING: CPU: 0 PID: 12 at drivers/usb/core/urb.c:477 usb_submit_urb+0x1188/0x13b0 [ 30.852670][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 30.859480][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.3.0-rc2+ #25 [ 30.867618][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.877789][ T12] Workqueue: usb_hub_wq hub_event [ 30.882834][ T12] Call Trace: [ 30.886132][ T12] dump_stack+0xca/0x13e [ 30.890361][ T12] ? usb_submit_urb+0x10c0/0x13b0 [ 30.895368][ T12] panic+0x2a3/0x6da [ 30.899303][ T12] ? add_taint.cold+0x16/0x16 [ 30.903971][ T12] ? __probe_kernel_read+0x188/0x1d0 [ 30.909242][ T12] ? __warn.cold+0x5/0x4a [ 30.914153][ T12] ? __warn+0xe3/0x1e0 [ 30.918431][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 30.923534][ T12] __warn.cold+0x20/0x4a [ 30.927765][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 30.932899][ T12] report_bug+0x262/0x2a0 [ 30.937231][ T12] do_error_trap+0x12b/0x1e0 [ 30.941849][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 30.947061][ T12] do_invalid_op+0x32/0x40 [ 30.951649][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 30.956784][ T12] invalid_op+0x23/0x30 [ 30.961059][ T12] RIP: 0010:usb_submit_urb+0x1188/0x13b0 [ 30.966676][ T12] Code: 4d 85 ed 74 2c e8 28 76 ed fd 4c 89 f7 e8 c0 6d 1a ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 60 e7 18 86 e8 3d 47 c3 fd <0f> 0b e9 20 f4 ff ff e8 fc 75 ed fd 4c 89 f2 48 b8 00 00 00 00 00 [ 30.986266][ T12] RSP: 0018:ffff8881da20edd8 EFLAGS: 00010286 [ 30.992322][ T12] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 31.002850][ T12] RDX: 0000000000000000 RSI: ffffffff8128a0fd RDI: ffffed103b441dad [ 31.011340][ T12] RBP: ffff8881d5062400 R08: ffff8881da1f9800 R09: fffffbfff11acd9a [ 31.019808][ T12] R10: fffffbfff11acd99 R11: ffffffff88d66ccf R12: 0000000000000003 [ 31.028094][ T12] R13: ffff8881ce078978 R14: ffff8881d3232b20 R15: ffff8881d503cf00 [ 31.036793][ T12] ? vprintk_func+0x7d/0x113 [ 31.041548][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 31.046652][ T12] sisusb_send_bulk_msg.constprop.0+0x88a/0x1030 [ 31.052966][ T12] ? sisusb_kill_all_busy+0x200/0x200 [ 31.059137][ T12] ? wake_up_klogd+0x41/0x50 [ 31.063807][ T12] ? vprintk_emit+0x18c/0x3e0 [ 31.069450][ T12] sisusb_send_bridge_packet.constprop.0+0x11c/0x240 [ 31.076373][ T12] ? sisusb_recv_bulk_msg.constprop.0+0x830/0x830 [ 31.083388][ T12] sisusb_do_init_gfxdevice+0x8a/0x450 [ 31.088970][ T12] ? sisusb_read_memio_word+0x2f0/0x2f0 [ 31.095888][ T12] ? dev_printk_emit+0xba/0xf1 [ 31.101258][ T12] ? dev_vprintk_emit+0x541/0x541 [ 31.106274][ T12] ? really_probe+0x281/0x650 [ 31.111155][ T12] sisusb_init_gfxdevice+0xe1/0x18d0 [ 31.116581][ T12] ? hub_event+0x1b5c/0x3640 [ 31.121179][ T12] ? worker_thread+0x96/0xe20 [ 31.126199][ T12] ? kthread+0x318/0x420 [ 31.130470][ T12] ? __dev_printk+0x1db/0x203 [ 31.135375][ T12] ? sisusb_set_default_mode+0xa50/0xa50 [ 31.141510][ T12] ? refcount_inc_not_zero_checked+0x12d/0x1e0 [ 31.147652][ T12] ? refcount_dec_and_mutex_lock+0x80/0x80 [ 31.153484][ T12] ? refcount_inc_checked+0x1d/0x60 [ 31.158960][ T12] ? kobject_get+0x67/0xc0 [ 31.163454][ T12] sisusb_probe+0x902/0xae8 [ 31.168032][ T12] usb_probe_interface+0x305/0x7a0 [ 31.173129][ T12] ? usb_probe_device+0x100/0x100 [ 31.178314][ T12] really_probe+0x281/0x650 [ 31.183135][ T12] driver_probe_device+0x101/0x1b0 [ 31.188321][ T12] __device_attach_driver+0x1c2/0x220 [ 31.194227][ T12] ? driver_allows_async_probing+0x160/0x160 [ 31.200704][ T12] bus_for_each_drv+0x15c/0x1e0 [ 31.205547][ T12] ? bus_rescan_devices+0x20/0x20 [ 31.211189][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 31.217525][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 31.222805][ T12] __device_attach+0x217/0x360 [ 31.227597][ T12] ? device_bind_driver+0xd0/0xd0 [ 31.233060][ T12] ? kobject_uevent_env+0x29e/0x1160 [ 31.238436][ T12] ? kobject_uevent_env+0x2a8/0x1160 [ 31.243705][ T12] bus_probe_device+0x1e4/0x290 [ 31.248542][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 31.254550][ T12] device_add+0xae6/0x16f0 [ 31.258951][ T12] ? uevent_store+0x50/0x50 [ 31.263576][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 31.269373][ T12] usb_set_configuration+0xdf6/0x1670 [ 31.274734][ T12] generic_probe+0x9d/0xd5 [ 31.279246][ T12] usb_probe_device+0x99/0x100 [ 31.284092][ T12] ? usb_suspend+0x620/0x620 [ 31.288871][ T12] really_probe+0x281/0x650 [ 31.293368][ T12] driver_probe_device+0x101/0x1b0 [ 31.298490][ T12] __device_attach_driver+0x1c2/0x220 [ 31.304025][ T12] ? driver_allows_async_probing+0x160/0x160 [ 31.310076][ T12] bus_for_each_drv+0x15c/0x1e0 [ 31.315258][ T12] ? bus_rescan_devices+0x20/0x20 [ 31.320284][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 31.326872][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 31.332171][ T12] __device_attach+0x217/0x360 [ 31.337013][ T12] ? device_bind_driver+0xd0/0xd0 [ 31.342242][ T12] ? kobject_uevent_env+0x29e/0x1160 [ 31.347609][ T12] ? kobject_uevent_env+0x2a8/0x1160 [ 31.353057][ T12] bus_probe_device+0x1e4/0x290 [ 31.358010][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 31.363992][ T12] device_add+0xae6/0x16f0 [ 31.368400][ T12] ? uevent_store+0x50/0x50 [ 31.373042][ T12] usb_new_device.cold+0x6a4/0xe79 [ 31.378402][ T12] hub_event+0x1b5c/0x3640 [ 31.382846][ T12] ? hub_port_debounce+0x260/0x260 [ 31.387960][ T12] process_one_work+0x92b/0x1530 [ 31.392976][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 31.398532][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 31.403631][ T12] worker_thread+0x96/0xe20 [ 31.408328][ T12] ? process_one_work+0x1530/0x1530 [ 31.413816][ T12] kthread+0x318/0x420 [ 31.418290][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 31.423851][ T12] ret_from_fork+0x24/0x30 [ 31.428939][ T12] Kernel Offset: disabled [ 31.433346][ T12] Rebooting in 86400 seconds..