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 '10.128.0.50' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 36.013949][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 36.253936][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 36.374063][ T12] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 36.386766][ T12] usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 9 [ 36.400847][ T12] usb 1-1: New USB device found, idVendor=0e8f, idProduct=0012, bcdDevice= 0.00 [ 36.411475][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 36.422622][ T12] usb 1-1: config 0 descriptor?? [ 36.905962][ T12] greenasia 0003:0E8F:0012.0001: unknown main item tag 0x4 [ 36.913667][ T12] greenasia 0003:0E8F:0012.0001: unknown main item tag 0x0 [ 36.921167][ T12] greenasia 0003:0E8F:0012.0001: unknown main item tag 0x0 [ 36.930674][ T12] greenasia 0003:0E8F:0012.0001: hidraw0: USB HID v0.00 Device [HID 0e8f:0012] on usb-dummy_hcd.0-1/input0 [ 36.943151][ T12] ================================================================== [ 36.951760][ T12] BUG: KASAN: slab-out-of-bounds in ga_probe+0x1fd/0x6f0 [ 36.959015][ T12] Write of size 8 at addr ffff8881d50e46c0 by task kworker/0:1/12 [ 36.967298][ T12] [ 36.969794][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.3.0-rc7+ #0 [ 36.978537][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.989938][ T12] Workqueue: usb_hub_wq hub_event [ 36.995529][ T12] Call Trace: [ 36.999764][ T12] dump_stack+0xca/0x13e [ 37.004108][ T12] ? ga_probe+0x1fd/0x6f0 [ 37.009012][ T12] ? ga_probe+0x1fd/0x6f0 [ 37.013518][ T12] print_address_description+0x6a/0x32c [ 37.019151][ T12] ? ga_probe+0x1fd/0x6f0 [ 37.023615][ T12] ? ga_probe+0x1fd/0x6f0 [ 37.028360][ T12] __kasan_report.cold+0x1a/0x33 [ 37.033952][ T12] ? ga_probe+0x1fd/0x6f0 [ 37.038660][ T12] kasan_report+0xe/0x12 [ 37.042905][ T12] check_memory_region+0x128/0x190 [ 37.048237][ T12] ga_probe+0x1fd/0x6f0 [ 37.052390][ T12] ? hid_hw_request.constprop.0+0xa0/0xa0 [ 37.058382][ T12] hid_device_probe+0x2be/0x3f0 [ 37.063528][ T12] ? hid_match_device+0x1f0/0x1f0 [ 37.069212][ T12] really_probe+0x281/0x6d0 [ 37.073971][ T12] driver_probe_device+0x101/0x1b0 [ 37.079168][ T12] __device_attach_driver+0x1c2/0x220 [ 37.084780][ T12] ? driver_allows_async_probing+0x160/0x160 [ 37.091150][ T12] bus_for_each_drv+0x162/0x1e0 [ 37.096337][ T12] ? bus_rescan_devices+0x20/0x20 [ 37.101645][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 37.107678][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 37.113878][ T12] __device_attach+0x217/0x360 [ 37.118897][ T12] ? device_bind_driver+0xd0/0xd0 [ 37.124085][ T12] ? kobject_uevent_env+0x29e/0x1150 [ 37.129921][ T12] ? kobject_uevent_env+0x2a8/0x1150 [ 37.135209][ T12] bus_probe_device+0x1e4/0x290 [ 37.140269][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 37.146331][ T12] device_add+0xae6/0x16f0 [ 37.151350][ T12] ? up_write+0x97/0x270 [ 37.155594][ T12] ? uevent_store+0x50/0x50 [ 37.160595][ T12] ? __debugfs_create_file+0x2da/0x3c0 [ 37.166195][ T12] hid_add_device+0x33c/0x990 [ 37.171605][ T12] ? __hid_bus_reprobe_drivers+0x130/0x130 [ 37.178340][ T12] ? lockdep_init_map+0x1b0/0x5e0 [ 37.183731][ T12] usbhid_probe+0xa81/0xfa0 [ 37.188876][ T12] usb_probe_interface+0x305/0x7a0 [ 37.194096][ T12] ? usb_probe_device+0x100/0x100 [ 37.199424][ T12] really_probe+0x281/0x6d0 [ 37.204199][ T12] driver_probe_device+0x101/0x1b0 [ 37.209857][ T12] __device_attach_driver+0x1c2/0x220 [ 37.216237][ T12] ? driver_allows_async_probing+0x160/0x160 [ 37.222620][ T12] bus_for_each_drv+0x162/0x1e0 [ 37.228355][ T12] ? bus_rescan_devices+0x20/0x20 [ 37.234251][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 37.240338][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 37.246285][ T12] __device_attach+0x217/0x360 [ 37.251151][ T12] ? device_bind_driver+0xd0/0xd0 [ 37.257158][ T12] ? kobject_uevent_env+0x29e/0x1150 [ 37.262971][ T12] ? kobject_uevent_env+0x2a8/0x1150 [ 37.269232][ T12] bus_probe_device+0x1e4/0x290 [ 37.274360][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 37.281013][ T12] device_add+0xae6/0x16f0 [ 37.285652][ T12] ? uevent_store+0x50/0x50 [ 37.290726][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 37.296835][ T12] usb_set_configuration+0xdf6/0x1670 [ 37.302539][ T12] generic_probe+0x9d/0xd5 [ 37.306955][ T12] usb_probe_device+0x99/0x100 [ 37.311866][ T12] ? usb_suspend+0x620/0x620 [ 37.317191][ T12] really_probe+0x281/0x6d0 [ 37.322294][ T12] driver_probe_device+0x101/0x1b0 [ 37.327712][ T12] __device_attach_driver+0x1c2/0x220 [ 37.333576][ T12] ? driver_allows_async_probing+0x160/0x160 [ 37.341289][ T12] bus_for_each_drv+0x162/0x1e0 [ 37.346651][ T12] ? bus_rescan_devices+0x20/0x20 [ 37.352194][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 37.359205][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 37.364666][ T12] __device_attach+0x217/0x360 [ 37.369651][ T12] ? device_bind_driver+0xd0/0xd0 [ 37.374948][ T12] ? kobject_uevent_env+0x29e/0x1150 [ 37.380882][ T12] ? kobject_uevent_env+0x2a8/0x1150 [ 37.386662][ T12] bus_probe_device+0x1e4/0x290 [ 37.391824][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 37.398891][ T12] device_add+0xae6/0x16f0 [ 37.403484][ T12] ? uevent_store+0x50/0x50 [ 37.408238][ T12] usb_new_device.cold+0x6a4/0xe79 [ 37.413999][ T12] hub_event+0x1b5c/0x3640 [ 37.420009][ T12] ? hub_port_debounce+0x260/0x260 [ 37.425691][ T12] process_one_work+0x92b/0x1530 [ 37.431502][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 37.437211][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 37.443525][ T12] worker_thread+0x96/0xe20 [ 37.448315][ T12] ? process_one_work+0x1530/0x1530 [ 37.453940][ T12] kthread+0x318/0x420 [ 37.458377][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 37.463954][ T12] ret_from_fork+0x24/0x30 [ 37.468493][ T12] [ 37.471227][ T12] Allocated by task 12: [ 37.475560][ T12] save_stack+0x1b/0x80 [ 37.480070][ T12] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 37.487253][ T12] hidraw_connect+0x4b/0x3e0 [ 37.492606][ T12] hid_connect+0x5c7/0xbb0 [ 37.497508][ T12] hid_hw_start+0xa2/0x130 [ 37.502260][ T12] ga_probe+0x41/0x6f0 [ 37.506334][ T12] hid_device_probe+0x2be/0x3f0 [ 37.511649][ T12] really_probe+0x281/0x6d0 [ 37.516464][ T12] driver_probe_device+0x101/0x1b0 [ 37.521985][ T12] __device_attach_driver+0x1c2/0x220 [ 37.528054][ T12] bus_for_each_drv+0x162/0x1e0 [ 37.533089][ T12] __device_attach+0x217/0x360 [ 37.537849][ T12] bus_probe_device+0x1e4/0x290 [ 37.543342][ T12] device_add+0xae6/0x16f0 [ 37.548678][ T12] hid_add_device+0x33c/0x990 [ 37.553623][ T12] usbhid_probe+0xa81/0xfa0 [ 37.558626][ T12] usb_probe_interface+0x305/0x7a0 [ 37.563971][ T12] really_probe+0x281/0x6d0 [ 37.568701][ T12] driver_probe_device+0x101/0x1b0 [ 37.573982][ T12] __device_attach_driver+0x1c2/0x220 [ 37.580059][ T12] bus_for_each_drv+0x162/0x1e0 [ 37.584996][ T12] __device_attach+0x217/0x360 [ 37.590039][ T12] bus_probe_device+0x1e4/0x290 [ 37.595170][ T12] device_add+0xae6/0x16f0 [ 37.599583][ T12] usb_set_configuration+0xdf6/0x1670 [ 37.605250][ T12] generic_probe+0x9d/0xd5 [ 37.610554][ T12] usb_probe_device+0x99/0x100 [ 37.615469][ T12] really_probe+0x281/0x6d0 [ 37.620445][ T12] driver_probe_device+0x101/0x1b0 [ 37.625744][ T12] __device_attach_driver+0x1c2/0x220 [ 37.631127][ T12] bus_for_each_drv+0x162/0x1e0 [ 37.635974][ T12] __device_attach+0x217/0x360 [ 37.640734][ T12] bus_probe_device+0x1e4/0x290 [ 37.645688][ T12] device_add+0xae6/0x16f0 [ 37.650843][ T12] usb_new_device.cold+0x6a4/0xe79 [ 37.655999][ T12] hub_event+0x1b5c/0x3640 [ 37.660829][ T12] process_one_work+0x92b/0x1530 [ 37.665852][ T12] worker_thread+0x96/0xe20 [ 37.670902][ T12] kthread+0x318/0x420 [ 37.675210][ T12] ret_from_fork+0x24/0x30 [ 37.680375][ T12] [ 37.682704][ T12] Freed by task 102: [ 37.687068][ T12] save_stack+0x1b/0x80 [ 37.691442][ T12] __kasan_slab_free+0x130/0x180 [ 37.696396][ T12] kfree+0xe4/0x2f0 [ 37.700796][ T12] usb_free_urb.part.0+0x7a/0xc0 [ 37.705929][ T12] usb_free_urb+0x1b/0x30 [ 37.711065][ T12] usb_start_wait_urb+0x1e5/0x2b0 [ 37.716976][ T12] usb_control_msg+0x31c/0x4a0 [ 37.722072][ T12] set_port_feature+0x69/0x90 [ 37.726750][ T12] hub_suspend+0x769/0x910 [ 37.731529][ T12] usb_suspend_both+0x260/0x7b0 [ 37.736489][ T12] usb_runtime_suspend+0x46/0x120 [ 37.741797][ T12] __rpm_callback+0x27e/0x3c0 [ 37.746817][ T12] rpm_callback+0x18f/0x230 [ 37.752109][ T12] rpm_suspend+0x37a/0x1300 [ 37.756792][ T12] __pm_runtime_suspend+0xbb/0x150 [ 37.762203][ T12] usb_runtime_idle+0x44/0x60 [ 37.767669][ T12] __rpm_callback+0x27e/0x3c0 [ 37.772576][ T12] rpm_idle+0x200/0x8f0 [ 37.777261][ T12] pm_runtime_work+0x13e/0x180 [ 37.782119][ T12] process_one_work+0x92b/0x1530 [ 37.787242][ T12] worker_thread+0x96/0xe20 [ 37.792063][ T12] kthread+0x318/0x420 [ 37.796222][ T12] ret_from_fork+0x24/0x30 [ 37.800942][ T12] [ 37.803276][ T12] The buggy address belongs to the object at ffff8881d50e4600 [ 37.803276][ T12] which belongs to the cache kmalloc-192 of size 192 [ 37.818117][ T12] The buggy address is located 0 bytes to the right of [ 37.818117][ T12] 192-byte region [ffff8881d50e4600, ffff8881d50e46c0) [ 37.832667][ T12] The buggy address belongs to the page: [ 37.838699][ T12] page:ffffea0007543900 refcount:1 mapcount:0 mapping:ffff8881da002a00 index:0x0 [ 37.848808][ T12] flags: 0x200000000000200(slab) [ 37.854131][ T12] raw: 0200000000000200 ffffea0007561080 0000000900000009 ffff8881da002a00 [ 37.863246][ T12] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 37.872233][ T12] page dumped because: kasan: bad access detected [ 37.878811][ T12] [ 37.881146][ T12] Memory state around the buggy address: [ 37.886772][ T12] ffff8881d50e4580: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 37.895727][ T12] ffff8881d50e4600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 37.904579][ T12] >ffff8881d50e4680: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc [ 37.912839][ T12] ^ [ 37.919433][ T12] ffff8881d50e4700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 37.928381][ T12] ffff8881d50e4780: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc [ 37.937910][ T12] ================================================================== [ 37.947256][ T12] Disabling lock debugging due to kernel taint [ 37.954438][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 37.961529][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Tainted: G B 5.3.0-rc7+ #0 [ 37.971185][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.982896][ T12] Workqueue: usb_hub_wq hub_event [ 37.988095][ T12] Call Trace: [ 37.991594][ T12] dump_stack+0xca/0x13e [ 37.995976][ T12] panic+0x2a3/0x6da [ 38.000290][ T12] ? add_taint.cold+0x16/0x16 [ 38.005904][ T12] ? retint_kernel+0x10/0x10 [ 38.010932][ T12] ? trace_hardirqs_on+0x55/0x1e0 [ 38.016930][ T12] ? ga_probe+0x1fd/0x6f0 [ 38.021504][ T12] end_report+0x43/0x49 [ 38.025751][ T12] ? ga_probe+0x1fd/0x6f0 [ 38.030236][ T12] __kasan_report.cold+0xd/0x33 [ 38.035493][ T12] ? ga_probe+0x1fd/0x6f0 [ 38.039816][ T12] kasan_report+0xe/0x12 [ 38.044520][ T12] check_memory_region+0x128/0x190 [ 38.050189][ T12] ga_probe+0x1fd/0x6f0 [ 38.055483][ T12] ? hid_hw_request.constprop.0+0xa0/0xa0 [ 38.061477][ T12] hid_device_probe+0x2be/0x3f0 [ 38.066336][ T12] ? hid_match_device+0x1f0/0x1f0 [ 38.071367][ T12] really_probe+0x281/0x6d0 [ 38.075874][ T12] driver_probe_device+0x101/0x1b0 [ 38.081064][ T12] __device_attach_driver+0x1c2/0x220 [ 38.087018][ T12] ? driver_allows_async_probing+0x160/0x160 [ 38.093085][ T12] bus_for_each_drv+0x162/0x1e0 [ 38.098505][ T12] ? bus_rescan_devices+0x20/0x20 [ 38.103851][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.109960][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 38.115479][ T12] __device_attach+0x217/0x360 [ 38.120341][ T12] ? device_bind_driver+0xd0/0xd0 [ 38.125639][ T12] ? kobject_uevent_env+0x29e/0x1150 [ 38.130935][ T12] ? kobject_uevent_env+0x2a8/0x1150 [ 38.136416][ T12] bus_probe_device+0x1e4/0x290 [ 38.141679][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 38.147960][ T12] device_add+0xae6/0x16f0 [ 38.152542][ T12] ? up_write+0x97/0x270 [ 38.157621][ T12] ? uevent_store+0x50/0x50 [ 38.162297][ T12] ? __debugfs_create_file+0x2da/0x3c0 [ 38.168032][ T12] hid_add_device+0x33c/0x990 [ 38.173032][ T12] ? __hid_bus_reprobe_drivers+0x130/0x130 [ 38.178929][ T12] ? lockdep_init_map+0x1b0/0x5e0 [ 38.184675][ T12] usbhid_probe+0xa81/0xfa0 [ 38.189184][ T12] usb_probe_interface+0x305/0x7a0 [ 38.194843][ T12] ? usb_probe_device+0x100/0x100 [ 38.200426][ T12] really_probe+0x281/0x6d0 [ 38.204957][ T12] driver_probe_device+0x101/0x1b0 [ 38.210365][ T12] __device_attach_driver+0x1c2/0x220 [ 38.216256][ T12] ? driver_allows_async_probing+0x160/0x160 [ 38.222740][ T12] bus_for_each_drv+0x162/0x1e0 [ 38.227994][ T12] ? bus_rescan_devices+0x20/0x20 [ 38.233479][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.239802][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 38.245103][ T12] __device_attach+0x217/0x360 [ 38.250307][ T12] ? device_bind_driver+0xd0/0xd0 [ 38.255870][ T12] ? kobject_uevent_env+0x29e/0x1150 [ 38.261939][ T12] ? kobject_uevent_env+0x2a8/0x1150 [ 38.267731][ T12] bus_probe_device+0x1e4/0x290 [ 38.272728][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 38.279125][ T12] device_add+0xae6/0x16f0 [ 38.283579][ T12] ? uevent_store+0x50/0x50 [ 38.288585][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.294553][ T12] usb_set_configuration+0xdf6/0x1670 [ 38.300631][ T12] generic_probe+0x9d/0xd5 [ 38.305050][ T12] usb_probe_device+0x99/0x100 [ 38.310223][ T12] ? usb_suspend+0x620/0x620 [ 38.314828][ T12] really_probe+0x281/0x6d0 [ 38.319859][ T12] driver_probe_device+0x101/0x1b0 [ 38.325254][ T12] __device_attach_driver+0x1c2/0x220 [ 38.330964][ T12] ? driver_allows_async_probing+0x160/0x160 [ 38.337325][ T12] bus_for_each_drv+0x162/0x1e0 [ 38.343346][ T12] ? bus_rescan_devices+0x20/0x20 [ 38.348911][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 38.354828][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 38.360804][ T12] __device_attach+0x217/0x360 [ 38.365788][ T12] ? device_bind_driver+0xd0/0xd0 [ 38.371425][ T12] ? kobject_uevent_env+0x29e/0x1150 [ 38.378057][ T12] ? kobject_uevent_env+0x2a8/0x1150 [ 38.383362][ T12] bus_probe_device+0x1e4/0x290 [ 38.388219][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 38.395106][ T12] device_add+0xae6/0x16f0 [ 38.399857][ T12] ? uevent_store+0x50/0x50 [ 38.404357][ T12] usb_new_device.cold+0x6a4/0xe79 [ 38.409840][ T12] hub_event+0x1b5c/0x3640 [ 38.414447][ T12] ? hub_port_debounce+0x260/0x260 [ 38.420284][ T12] process_one_work+0x92b/0x1530 [ 38.426028][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 38.431558][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 38.437347][ T12] worker_thread+0x96/0xe20 [ 38.442480][ T12] ? process_one_work+0x1530/0x1530 [ 38.448059][ T12] kthread+0x318/0x420 [ 38.452668][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 38.458876][ T12] ret_from_fork+0x24/0x30 [ 38.465112][ T12] Kernel Offset: disabled [ 38.471161][ T12] Rebooting in 86400 seconds..