[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.15.199' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 31.473200][ T7] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 31.713197][ T7] usb 1-1: Using ep0 maxpacket: 8 [ 31.833221][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 31.845006][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0 [ 31.855347][ T7] usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 9 [ 31.869007][ T7] usb 1-1: New USB device found, idVendor=11c0, idProduct=5506, bcdDevice= 0.00 [ 31.878214][ T7] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 31.889749][ T7] usb 1-1: config 0 descriptor?? [ 32.368086][ T7] betop 0003:11C0:5506.0001: hidraw0: USB HID v0.00 Device [HID 11c0:5506] on usb-dummy_hcd.0-1/input0 [ 32.380277][ T7] ================================================================== [ 32.388542][ T7] BUG: KASAN: slab-out-of-bounds in betop_probe+0x3bb/0x5e0 [ 32.395847][ T7] Write of size 8 at addr ffff888103ccc2c0 by task kworker/0:1/7 [ 32.403572][ T7] [ 32.405931][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.10.0-rc7-syzkaller #0 [ 32.414195][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.424271][ T7] Workqueue: usb_hub_wq hub_event [ 32.429319][ T7] Call Trace: [ 32.432628][ T7] dump_stack+0x107/0x163 [ 32.437044][ T7] ? betop_probe+0x3bb/0x5e0 [ 32.441623][ T7] ? betop_probe+0x3bb/0x5e0 [ 32.446201][ T7] print_address_description.constprop.0.cold+0xae/0x4c8 [ 32.453233][ T7] ? io_schedule_timeout+0x140/0x140 [ 32.458550][ T7] ? hid_match_id+0x300/0x300 [ 32.463238][ T7] ? vprintk_func+0x93/0x140 [ 32.467812][ T7] ? betop_probe+0x3bb/0x5e0 [ 32.472398][ T7] ? betop_probe+0x3bb/0x5e0 [ 32.476992][ T7] kasan_report.cold+0x1f/0x37 [ 32.481739][ T7] ? memmove+0x31/0x60 [ 32.485804][ T7] ? betop_probe+0x3bb/0x5e0 [ 32.490384][ T7] check_memory_region+0x13d/0x180 [ 32.495488][ T7] betop_probe+0x3bb/0x5e0 [ 32.499898][ T7] ? belkin_input_mapping+0x560/0x560 [ 32.505263][ T7] hid_device_probe+0x2bd/0x3f0 [ 32.510119][ T7] ? hid_match_device+0x390/0x390 [ 32.515139][ T7] really_probe+0x291/0xde0 [ 32.519627][ T7] driver_probe_device+0x26b/0x3d0 [ 32.524730][ T7] __device_attach_driver+0x1d1/0x290 [ 32.530089][ T7] ? driver_allows_async_probing+0x150/0x150 [ 32.536061][ T7] bus_for_each_drv+0x15f/0x1e0 [ 32.540909][ T7] ? bus_for_each_dev+0x1d0/0x1d0 [ 32.545935][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 32.551918][ T7] ? trace_hardirqs_on+0x5b/0x1a0 [ 32.556935][ T7] __device_attach+0x228/0x4a0 [ 32.561705][ T7] ? really_probe+0xde0/0xde0 [ 32.566384][ T7] ? kobject_uevent_env+0x2bb/0x1680 [ 32.571781][ T7] bus_probe_device+0x1e4/0x290 [ 32.576640][ T7] device_add+0xbb2/0x1ce0 [ 32.581074][ T7] ? devlink_add_symlinks+0x450/0x450 [ 32.586462][ T7] ? __debugfs_create_file+0x33d/0x4c0 [ 32.591915][ T7] hid_add_device+0x344/0x9d0 [ 32.596604][ T7] ? modalias_show+0x150/0x150 [ 32.601375][ T7] ? lockdep_init_map_waits+0x26a/0x700 [ 32.606948][ T7] usbhid_probe+0xaae/0xfc0 [ 32.611446][ T7] usb_probe_interface+0x315/0x7f0 [ 32.616588][ T7] ? usb_match_dynamic_id+0x1a0/0x1a0 [ 32.621964][ T7] really_probe+0x291/0xde0 [ 32.626565][ T7] driver_probe_device+0x26b/0x3d0 [ 32.631660][ T7] __device_attach_driver+0x1d1/0x290 [ 32.637029][ T7] ? driver_allows_async_probing+0x150/0x150 [ 32.643001][ T7] bus_for_each_drv+0x15f/0x1e0 [ 32.647837][ T7] ? bus_for_each_dev+0x1d0/0x1d0 [ 32.652852][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 32.658828][ T7] ? trace_hardirqs_on+0x5b/0x1a0 [ 32.663861][ T7] __device_attach+0x228/0x4a0 [ 32.668634][ T7] ? really_probe+0xde0/0xde0 [ 32.673315][ T7] ? kobject_uevent_env+0x2bb/0x1680 [ 32.678585][ T7] bus_probe_device+0x1e4/0x290 [ 32.683432][ T7] device_add+0xbb2/0x1ce0 [ 32.689760][ T7] ? devlink_add_symlinks+0x450/0x450 [ 32.695118][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 32.701087][ T7] ? _raw_spin_unlock_irqrestore+0x34/0x40 [ 32.706884][ T7] ? trace_hardirqs_on+0x5b/0x1a0 [ 32.712868][ T7] usb_set_configuration+0x113c/0x1910 [ 32.718317][ T7] usb_generic_driver_probe+0xba/0x100 [ 32.723777][ T7] usb_probe_device+0xd9/0x2c0 [ 32.728710][ T7] ? usb_driver_release_interface+0x180/0x180 [ 32.734776][ T7] really_probe+0x291/0xde0 [ 32.739327][ T7] driver_probe_device+0x26b/0x3d0 [ 32.744437][ T7] __device_attach_driver+0x1d1/0x290 [ 32.749828][ T7] ? driver_allows_async_probing+0x150/0x150 [ 32.755895][ T7] bus_for_each_drv+0x15f/0x1e0 [ 32.760743][ T7] ? bus_for_each_dev+0x1d0/0x1d0 [ 32.765752][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 32.771974][ T7] ? trace_hardirqs_on+0x5b/0x1a0 [ 32.777085][ T7] __device_attach+0x228/0x4a0 [ 32.782284][ T7] ? really_probe+0xde0/0xde0 [ 32.786971][ T7] ? kobject_uevent_env+0x2bb/0x1680 [ 32.792241][ T7] bus_probe_device+0x1e4/0x290 [ 32.797076][ T7] device_add+0xbb2/0x1ce0 [ 32.801573][ T7] ? devlink_add_symlinks+0x450/0x450 [ 32.807038][ T7] usb_new_device.cold+0x71d/0xfe9 [ 32.812381][ T7] ? hub_disconnect+0x510/0x510 [ 32.817240][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 32.822160][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 32.828141][ T7] hub_event+0x2348/0x42d0 [ 32.832553][ T7] ? hub_port_debounce+0x3b0/0x3b0 [ 32.837659][ T7] ? __lock_acquire+0x821/0x54f0 [ 32.842590][ T7] ? put_pwq+0xb0/0x1b0 [ 32.846730][ T7] ? lock_release+0x6d0/0x6d0 [ 32.851486][ T7] ? lock_downgrade+0x6d0/0x6d0 [ 32.856338][ T7] ? do_raw_spin_lock+0x120/0x2b0 [ 32.861346][ T7] process_one_work+0x933/0x1520 [ 32.866296][ T7] ? lock_release+0x6d0/0x6d0 [ 32.871080][ T7] ? pwq_dec_nr_in_flight+0x320/0x320 [ 32.876447][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 32.881376][ T7] worker_thread+0x64c/0x1120 [ 32.886067][ T7] ? __kthread_parkme+0x118/0x1d0 [ 32.891105][ T7] ? process_one_work+0x1520/0x1520 [ 32.896304][ T7] kthread+0x38c/0x460 [ 32.900361][ T7] ? _raw_spin_unlock_irq+0x1f/0x30 [ 32.905572][ T7] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 32.911450][ T7] ret_from_fork+0x1f/0x30 [ 32.915843][ T7] [ 32.918163][ T7] Allocated by task 7: [ 32.922218][ T7] kasan_save_stack+0x1b/0x40 [ 32.926890][ T7] __kasan_kmalloc.constprop.0+0xc2/0xd0 [ 32.932503][ T7] hidraw_connect+0x4b/0x440 [ 32.937088][ T7] hid_connect+0x5be/0xbc0 [ 32.941497][ T7] hid_hw_start+0xa2/0x130 [ 32.945945][ T7] betop_probe+0xce/0x5e0 [ 32.950264][ T7] hid_device_probe+0x2bd/0x3f0 [ 32.955141][ T7] really_probe+0x291/0xde0 [ 32.959643][ T7] driver_probe_device+0x26b/0x3d0 [ 32.964742][ T7] __device_attach_driver+0x1d1/0x290 [ 32.970100][ T7] bus_for_each_drv+0x15f/0x1e0 [ 32.974945][ T7] __device_attach+0x228/0x4a0 [ 32.979716][ T7] bus_probe_device+0x1e4/0x290 [ 32.984551][ T7] device_add+0xbb2/0x1ce0 [ 32.988978][ T7] hid_add_device+0x344/0x9d0 [ 32.993650][ T7] usbhid_probe+0xaae/0xfc0 [ 32.998140][ T7] usb_probe_interface+0x315/0x7f0 [ 33.003256][ T7] really_probe+0x291/0xde0 [ 33.007770][ T7] driver_probe_device+0x26b/0x3d0 [ 33.012910][ T7] __device_attach_driver+0x1d1/0x290 [ 33.018711][ T7] bus_for_each_drv+0x15f/0x1e0 [ 33.023580][ T7] __device_attach+0x228/0x4a0 [ 33.028338][ T7] bus_probe_device+0x1e4/0x290 [ 33.033292][ T7] device_add+0xbb2/0x1ce0 [ 33.037692][ T7] usb_set_configuration+0x113c/0x1910 [ 33.043145][ T7] usb_generic_driver_probe+0xba/0x100 [ 33.048594][ T7] usb_probe_device+0xd9/0x2c0 [ 33.053340][ T7] really_probe+0x291/0xde0 [ 33.057831][ T7] driver_probe_device+0x26b/0x3d0 [ 33.062925][ T7] __device_attach_driver+0x1d1/0x290 [ 33.068284][ T7] bus_for_each_drv+0x15f/0x1e0 [ 33.073121][ T7] __device_attach+0x228/0x4a0 [ 33.077874][ T7] bus_probe_device+0x1e4/0x290 [ 33.082707][ T7] device_add+0xbb2/0x1ce0 [ 33.087123][ T7] usb_new_device.cold+0x71d/0xfe9 [ 33.092216][ T7] hub_event+0x2348/0x42d0 [ 33.096618][ T7] process_one_work+0x933/0x1520 [ 33.101557][ T7] worker_thread+0x64c/0x1120 [ 33.106228][ T7] kthread+0x38c/0x460 [ 33.110308][ T7] ret_from_fork+0x1f/0x30 [ 33.115026][ T7] [ 33.117353][ T7] The buggy address belongs to the object at ffff888103ccc200 [ 33.117353][ T7] which belongs to the cache kmalloc-192 of size 192 [ 33.131519][ T7] The buggy address is located 0 bytes to the right of [ 33.131519][ T7] 192-byte region [ffff888103ccc200, ffff888103ccc2c0) [ 33.145135][ T7] The buggy address belongs to the page: [ 33.150778][ T7] page:00000000c01ff211 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103ccc [ 33.161023][ T7] flags: 0x200000000000200(slab) [ 33.165961][ T7] raw: 0200000000000200 ffffea00040b6340 0000000400000004 ffff888100041500 [ 33.174533][ T7] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 33.183108][ T7] page dumped because: kasan: bad access detected [ 33.189546][ T7] [ 33.191854][ T7] Memory state around the buggy address: [ 33.197472][ T7] ffff888103ccc180: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.206929][ T7] ffff888103ccc200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 33.215070][ T7] >ffff888103ccc280: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 33.223342][ T7] ^ [ 33.230006][ T7] ffff888103ccc300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 33.238071][ T7] ffff888103ccc380: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.246118][ T7] ================================================================== [ 33.254170][ T7] Disabling lock debugging due to kernel taint [ 33.260494][ T7] Kernel panic - not syncing: panic_on_warn set ... [ 33.267097][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Tainted: G B 5.10.0-rc7-syzkaller #0 [ 33.276673][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.286739][ T7] Workqueue: usb_hub_wq hub_event [ 33.291758][ T7] Call Trace: [ 33.295050][ T7] dump_stack+0x107/0x163 [ 33.299469][ T7] ? betop_probe+0x300/0x5e0 [ 33.304051][ T7] panic+0x306/0x73d [ 33.307941][ T7] ? __warn_printk+0xf3/0xf3 [ 33.312544][ T7] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 33.318709][ T7] ? trace_hardirqs_on+0x51/0x1a0 [ 33.323733][ T7] ? betop_probe+0x3bb/0x5e0 [ 33.328492][ T7] ? betop_probe+0x3bb/0x5e0 [ 33.341353][ T7] end_report+0x58/0x5e [ 33.345507][ T7] kasan_report.cold+0xd/0x37 [ 33.350196][ T7] ? memmove+0x31/0x60 [ 33.354275][ T7] ? betop_probe+0x3bb/0x5e0 [ 33.358857][ T7] check_memory_region+0x13d/0x180 [ 33.363967][ T7] betop_probe+0x3bb/0x5e0 [ 33.368566][ T7] ? belkin_input_mapping+0x560/0x560 [ 33.373929][ T7] hid_device_probe+0x2bd/0x3f0 [ 33.378778][ T7] ? hid_match_device+0x390/0x390 [ 33.383805][ T7] really_probe+0x291/0xde0 [ 33.389287][ T7] driver_probe_device+0x26b/0x3d0 [ 33.395025][ T7] __device_attach_driver+0x1d1/0x290 [ 33.400502][ T7] ? driver_allows_async_probing+0x150/0x150 [ 33.406490][ T7] bus_for_each_drv+0x15f/0x1e0 [ 33.411355][ T7] ? bus_for_each_dev+0x1d0/0x1d0 [ 33.416559][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 33.422533][ T7] ? trace_hardirqs_on+0x5b/0x1a0 [ 33.427550][ T7] __device_attach+0x228/0x4a0 [ 33.432939][ T7] ? really_probe+0xde0/0xde0 [ 33.437611][ T7] ? kobject_uevent_env+0x2bb/0x1680 [ 33.442908][ T7] bus_probe_device+0x1e4/0x290 [ 33.448827][ T7] device_add+0xbb2/0x1ce0 [ 33.453885][ T7] ? devlink_add_symlinks+0x450/0x450 [ 33.459440][ T7] ? __debugfs_create_file+0x33d/0x4c0 [ 33.465109][ T7] hid_add_device+0x344/0x9d0 [ 33.469782][ T7] ? modalias_show+0x150/0x150 [ 33.475069][ T7] ? lockdep_init_map_waits+0x26a/0x700 [ 33.481576][ T7] usbhid_probe+0xaae/0xfc0 [ 33.486177][ T7] usb_probe_interface+0x315/0x7f0 [ 33.491580][ T7] ? usb_match_dynamic_id+0x1a0/0x1a0 [ 33.497032][ T7] really_probe+0x291/0xde0 [ 33.501625][ T7] driver_probe_device+0x26b/0x3d0 [ 33.507105][ T7] __device_attach_driver+0x1d1/0x290 [ 33.512481][ T7] ? driver_allows_async_probing+0x150/0x150 [ 33.518568][ T7] bus_for_each_drv+0x15f/0x1e0 [ 33.523425][ T7] ? bus_for_each_dev+0x1d0/0x1d0 [ 33.528550][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 33.534722][ T7] ? trace_hardirqs_on+0x5b/0x1a0 [ 33.539751][ T7] __device_attach+0x228/0x4a0 [ 33.544719][ T7] ? really_probe+0xde0/0xde0 [ 33.549408][ T7] ? kobject_uevent_env+0x2bb/0x1680 [ 33.554714][ T7] bus_probe_device+0x1e4/0x290 [ 33.559580][ T7] device_add+0xbb2/0x1ce0 [ 33.564119][ T7] ? devlink_add_symlinks+0x450/0x450 [ 33.569512][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 33.575693][ T7] ? _raw_spin_unlock_irqrestore+0x34/0x40 [ 33.581509][ T7] ? trace_hardirqs_on+0x5b/0x1a0 [ 33.586727][ T7] usb_set_configuration+0x113c/0x1910 [ 33.592300][ T7] usb_generic_driver_probe+0xba/0x100 [ 33.597806][ T7] usb_probe_device+0xd9/0x2c0 [ 33.602564][ T7] ? usb_driver_release_interface+0x180/0x180 [ 33.609161][ T7] really_probe+0x291/0xde0 [ 33.613666][ T7] driver_probe_device+0x26b/0x3d0 [ 33.618786][ T7] __device_attach_driver+0x1d1/0x290 [ 33.624156][ T7] ? driver_allows_async_probing+0x150/0x150 [ 33.630136][ T7] bus_for_each_drv+0x15f/0x1e0 [ 33.634999][ T7] ? bus_for_each_dev+0x1d0/0x1d0 [ 33.640107][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 33.646099][ T7] ? trace_hardirqs_on+0x5b/0x1a0 [ 33.651267][ T7] __device_attach+0x228/0x4a0 [ 33.656041][ T7] ? really_probe+0xde0/0xde0 [ 33.660984][ T7] ? kobject_uevent_env+0x2bb/0x1680 [ 33.666620][ T7] bus_probe_device+0x1e4/0x290 [ 33.671484][ T7] device_add+0xbb2/0x1ce0 [ 33.676712][ T7] ? devlink_add_symlinks+0x450/0x450 [ 33.682087][ T7] usb_new_device.cold+0x71d/0xfe9 [ 33.687981][ T7] ? hub_disconnect+0x510/0x510 [ 33.692925][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 33.698371][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 33.704639][ T7] hub_event+0x2348/0x42d0 [ 33.709073][ T7] ? hub_port_debounce+0x3b0/0x3b0 [ 33.714280][ T7] ? __lock_acquire+0x821/0x54f0 [ 33.719406][ T7] ? put_pwq+0xb0/0x1b0 [ 33.724038][ T7] ? lock_release+0x6d0/0x6d0 [ 33.729095][ T7] ? lock_downgrade+0x6d0/0x6d0 [ 33.733956][ T7] ? do_raw_spin_lock+0x120/0x2b0 [ 33.739248][ T7] process_one_work+0x933/0x1520 [ 33.744208][ T7] ? lock_release+0x6d0/0x6d0 [ 33.748903][ T7] ? pwq_dec_nr_in_flight+0x320/0x320 [ 33.754360][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 33.759395][ T7] worker_thread+0x64c/0x1120 [ 33.764159][ T7] ? __kthread_parkme+0x118/0x1d0 [ 33.769181][ T7] ? process_one_work+0x1520/0x1520 [ 33.775007][ T7] kthread+0x38c/0x460 [ 33.779359][ T7] ? _raw_spin_unlock_irq+0x1f/0x30 [ 33.784598][ T7] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 33.790570][ T7] ret_from_fork+0x1f/0x30 [ 33.795669][ T7] Kernel Offset: disabled [ 33.800676][ T7] Rebooting in 86400 seconds..