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 '10.128.0.228' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 56.565019][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 56.805016][ T12] usb 1-1: Using ep0 maxpacket: 32 [ 56.965077][ T12] usb 1-1: unable to get BOS descriptor or descriptor too short [ 57.045077][ T12] usb 1-1: config 6 has an invalid interface number: 55 but max is 0 [ 57.053258][ T12] usb 1-1: config 6 has an invalid interface association descriptor of length 2, skipping [ 57.063236][ T12] usb 1-1: config 6 has no interface number 0 [ 57.069419][ T12] usb 1-1: config 6 interface 55 altsetting 6 has an invalid endpoint with address 0x80, skipping [ 57.080097][ T12] usb 1-1: config 6 interface 55 altsetting 6 bulk endpoint 0x9 has invalid maxpacket 1 [ 57.089868][ T12] usb 1-1: config 6 interface 55 altsetting 6 endpoint 0x7 has an invalid bInterval 255, changing to 7 [ 57.100970][ T12] usb 1-1: config 6 interface 55 altsetting 6 endpoint 0xB has invalid maxpacket 2047, setting to 64 [ 57.111911][ T12] usb 1-1: config 6 interface 55 has no altsetting 0 [ 57.355057][ T12] usb 1-1: string descriptor 0 read error: -22 [ 57.361349][ T12] usb 1-1: New USB device found, idVendor=0711, idProduct=0918, bcdDevice=cb.9c [ 57.370472][ T12] usb 1-1: New USB device strings: Mfr=3, Product=1, SerialNumber=179 [ 57.416898][ T12] usb 1-1: USB2VGA dongle found at address 2 [ 57.425832][ T12] usb 1-1: Allocated 8 output buffers [ 57.431256][ T12] ------------[ cut here ]------------ [ 57.436789][ T12] usb 1-1: BOGUS urb xfer, pipe 3 != type 1 [ 57.442779][ T12] WARNING: CPU: 0 PID: 12 at drivers/usb/core/urb.c:477 usb_submit_urb+0x1188/0x13b0 [ 57.452257][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 57.458885][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.2.0-rc6+ #13 [ 57.466371][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.476873][ T12] Workqueue: usb_hub_wq hub_event [ 57.481928][ T12] Call Trace: [ 57.485230][ T12] dump_stack+0xca/0x13e [ 57.489575][ T12] ? usb_submit_urb+0x1130/0x13b0 [ 57.494657][ T12] panic+0x292/0x6c9 [ 57.498543][ T12] ? __warn_printk+0xf3/0xf3 [ 57.503122][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 57.508175][ T12] ? __probe_kernel_read+0x16c/0x1b0 [ 57.513452][ T12] ? __warn.cold+0x5/0x4b [ 57.517767][ T12] ? __warn+0xe4/0x1c0 [ 57.521912][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 57.526941][ T12] __warn.cold+0x20/0x4b [ 57.531278][ T12] ? __irq_work_queue_local+0xa3/0xe0 [ 57.536801][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 57.541892][ T12] report_bug+0x262/0x2a0 [ 57.546377][ T12] do_error_trap+0x12b/0x1e0 [ 57.551015][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 57.556252][ T12] do_invalid_op+0x32/0x40 [ 57.560744][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 57.565809][ T12] invalid_op+0x14/0x20 [ 57.569961][ T12] RIP: 0010:usb_submit_urb+0x1188/0x13b0 [ 57.575821][ T12] Code: 4d 85 ed 74 2c e8 78 db e8 fd 4c 89 f7 e8 a0 36 13 ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 80 23 1a 86 e8 03 a0 be fd <0f> 0b e9 20 f4 ff ff e8 4c db e8 fd 4c 89 f2 48 b8 00 00 00 00 00 [ 57.596211][ T12] RSP: 0018:ffff8881d9e0ed28 EFLAGS: 00010282 [ 57.602269][ T12] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 57.610438][ T12] RDX: 0000000000000000 RSI: ffffffff8127ef3d RDI: ffffed103b3c1d97 [ 57.619026][ T12] RBP: ffff8881d06fed70 R08: ffff8881d9df9800 R09: ffffed103b645d30 [ 57.627192][ T12] R10: ffffed103b645d2f R11: ffff8881db22e97f R12: 0000000000000003 [ 57.635408][ T12] R13: ffff8881cba14b28 R14: ffff8881c5aeab20 R15: ffff8881d408bd00 [ 57.643878][ T12] ? vprintk_func+0x7d/0x113 [ 57.648543][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 57.653621][ T12] sisusb_send_bulk_msg.constprop.0+0x88a/0x1030 [ 57.659943][ T12] ? sisusb_kill_all_busy+0x200/0x200 [ 57.665764][ T12] ? find_held_lock+0x2d/0x110 [ 57.670520][ T12] ? stack_depot_save+0x252/0x440 [ 57.675543][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 57.680599][ T12] sisusb_send_bridge_packet.constprop.0+0x11c/0x240 [ 57.687543][ T12] ? sisusb_recv_bulk_msg.constprop.0+0x830/0x830 [ 57.694383][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 57.699795][ T12] ? stack_depot_save+0x252/0x440 [ 57.704860][ T12] sisusb_do_init_gfxdevice+0x8a/0x450 [ 57.710344][ T12] ? sisusb_read_memio_word+0x2f0/0x2f0 [ 57.715923][ T12] ? usb_probe_interface+0x305/0x7a0 [ 57.721429][ T12] ? __device_attach_async_helper+0x1a0/0x270 [ 57.727540][ T12] ? __device_attach_driver+0x1c2/0x220 [ 57.733124][ T12] ? bus_for_each_drv+0x15c/0x1e0 [ 57.738352][ T12] ? __device_attach+0x217/0x360 [ 57.743350][ T12] ? bus_probe_device+0x1e4/0x290 [ 57.748422][ T12] ? device_add+0xae6/0x16f0 [ 57.753121][ T12] ? usb_set_configuration+0xdf6/0x1670 [ 57.758650][ T12] ? generic_probe+0x9d/0xd5 [ 57.763218][ T12] ? usb_probe_device+0x99/0x100 [ 57.768144][ T12] ? really_probe+0x281/0x660 [ 57.772893][ T12] sisusb_init_gfxdevice+0xe0/0x18d0 [ 57.778293][ T12] ? usb_new_device.cold+0x8c1/0x1016 [ 57.783827][ T12] ? hub_event+0x1ada/0x3590 [ 57.788469][ T12] ? process_one_work+0x905/0x1570 [ 57.793629][ T12] ? worker_thread+0x96/0xe20 [ 57.798350][ T12] ? ret_from_fork+0x24/0x30 [ 57.802928][ T12] ? find_held_lock+0x2d/0x110 [ 57.807726][ T12] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 57.813371][ T12] ? sisusb_set_default_mode+0xa60/0xa60 [ 57.818997][ T12] ? refcount_inc_not_zero_checked+0x12d/0x1e0 [ 57.825137][ T12] ? refcount_dec_and_mutex_lock+0x80/0x80 [ 57.830920][ T12] ? refcount_inc_checked+0x1d/0x60 [ 57.836107][ T12] ? kobject_get+0x67/0xc0 [ 57.840512][ T12] sisusb_probe+0x924/0xbcb [ 57.845008][ T12] usb_probe_interface+0x305/0x7a0 [ 57.850162][ T12] ? usb_probe_device+0x100/0x100 [ 57.855181][ T12] really_probe+0x281/0x660 [ 57.859679][ T12] driver_probe_device+0x104/0x210 [ 57.864792][ T12] __device_attach_driver+0x1c2/0x220 [ 57.870150][ T12] ? driver_allows_async_probing+0x160/0x160 [ 57.876151][ T12] bus_for_each_drv+0x15c/0x1e0 [ 57.881299][ T12] ? bus_rescan_devices+0x20/0x20 [ 57.886349][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 57.892130][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 57.897573][ T12] __device_attach+0x217/0x360 [ 57.902318][ T12] ? device_bind_driver+0xd0/0xd0 [ 57.907398][ T12] ? kobject_uevent_env+0x29e/0x1150 [ 57.912677][ T12] ? kobject_uevent_env+0x2a8/0x1150 [ 57.917944][ T12] bus_probe_device+0x1e4/0x290 [ 57.922783][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 57.928818][ T12] device_add+0xae6/0x16f0 [ 57.933225][ T12] ? uevent_store+0x50/0x50 [ 57.937710][ T12] usb_set_configuration+0xdf6/0x1670 [ 57.943067][ T12] generic_probe+0x9d/0xd5 [ 57.947551][ T12] usb_probe_device+0x99/0x100 [ 57.952290][ T12] ? usb_suspend+0x620/0x620 [ 57.956892][ T12] really_probe+0x281/0x660 [ 57.961426][ T12] driver_probe_device+0x104/0x210 [ 57.966565][ T12] __device_attach_driver+0x1c2/0x220 [ 57.971930][ T12] ? driver_allows_async_probing+0x160/0x160 [ 57.977897][ T12] bus_for_each_drv+0x15c/0x1e0 [ 57.982732][ T12] ? bus_rescan_devices+0x20/0x20 [ 57.987735][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 57.993518][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 57.998791][ T12] __device_attach+0x217/0x360 [ 58.003534][ T12] ? device_bind_driver+0xd0/0xd0 [ 58.008582][ T12] ? kobject_uevent_env+0x29e/0x1150 [ 58.013954][ T12] ? kobject_uevent_env+0x2a8/0x1150 [ 58.019241][ T12] bus_probe_device+0x1e4/0x290 [ 58.024081][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 58.029960][ T12] device_add+0xae6/0x16f0 [ 58.034395][ T12] ? uevent_store+0x50/0x50 [ 58.038890][ T12] usb_new_device.cold+0x8c1/0x1016 [ 58.044072][ T12] ? usb_port_suspend+0xa40/0xa40 [ 58.049076][ T12] ? mark_held_locks+0x9f/0xe0 [ 58.053817][ T12] ? _raw_spin_unlock_irq+0x24/0x30 [ 58.058998][ T12] hub_event+0x1ada/0x3590 [ 58.063401][ T12] ? hub_port_debounce+0x260/0x260 [ 58.068550][ T12] process_one_work+0x905/0x1570 [ 58.073479][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 58.078832][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 58.083856][ T12] worker_thread+0x96/0xe20 [ 58.088343][ T12] ? process_one_work+0x1570/0x1570 [ 58.093515][ T12] kthread+0x30b/0x410 [ 58.097602][ T12] ? kthread_park+0x1a0/0x1a0 [ 58.102263][ T12] ret_from_fork+0x24/0x30 [ 58.107268][ T12] Kernel Offset: disabled [ 58.111629][ T12] Rebooting in 86400 seconds..