[ 51.083124] audit: type=1800 audit(1555235714.113:26): pid=5600 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2490 res=0 [ 51.102729] audit: type=1800 audit(1555235714.123:27): pid=5600 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0 [ 51.122570] audit: type=1800 audit(1555235714.123:28): pid=5600 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2450 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 51.816048] audit: type=1800 audit(1555235714.863:29): pid=5600 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.198' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 63.300051] usb 1-1: new full-speed USB device number 2 using dummy_hcd [ 63.660092] usb 1-1: config 0 has an invalid interface number: 12 but max is 0 [ 63.671496] usb 1-1: config 0 has no interface number 0 [ 63.682615] usb 1-1: New USB device found, idVendor=10cf, idProduct=8067, bcdDevice=55.87 [ 63.691030] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 63.700290] usb 1-1: config 0 descriptor?? [ 63.746134] vmk80xx 1-1:0.12: driver 'vmk80xx' failed to auto-configure device. [ 63.755860] INFO: trying to register non-static key. [ 63.760969] the code is fine but needs lockdep annotation. [ 63.766572] turning off the locking correctness validator. [ 63.772360] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.1.0-rc4-319354-g9a33b36 #3 [ 63.780323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.796566] Workqueue: usb_hub_wq hub_event [ 63.800880] Call Trace: [ 63.803503] dump_stack+0xe8/0x16e [ 63.807029] register_lock_class+0x11b8/0x1250 [ 63.811615] ? is_dynamic_key+0x1b0/0x1b0 [ 63.815748] ? graph_lock+0x80/0x180 [ 63.819442] __lock_acquire+0xfb/0x37c0 [ 63.823452] ? __lock_acquire+0x238b/0x37c0 [ 63.829165] ? mark_held_locks+0xe0/0xe0 [ 63.833436] ? mark_held_locks+0xe0/0xe0 [ 63.837494] lock_acquire+0x10d/0x2f0 [ 63.841285] ? down+0x12/0x80 [ 63.844387] _raw_spin_lock_irqsave+0x44/0x60 [ 63.848864] ? down+0x12/0x80 [ 63.851981] down+0x12/0x80 [ 63.859758] vmk80xx_detach+0x59/0x100 [ 63.863797] comedi_device_detach+0xed/0x800 [ 63.868193] comedi_device_cleanup.part.0+0x68/0x140 [ 63.873288] comedi_free_board_dev.part.0+0x16/0x90 [ 63.878290] comedi_release_hardware_device+0x111/0x140 [ 63.883641] comedi_auto_config.cold+0x124/0x1b0 [ 63.888424] usb_probe_interface+0x31d/0x820 [ 63.894761] ? usb_probe_device+0x150/0x150 [ 63.899224] really_probe+0x2da/0xb10 [ 63.903012] driver_probe_device+0x21d/0x350 [ 63.907413] __device_attach_driver+0x1d8/0x290 [ 63.912082] ? driver_allows_async_probing+0x160/0x160 [ 63.917382] bus_for_each_drv+0x163/0x1e0 [ 63.921518] ? bus_rescan_devices+0x30/0x30 [ 63.925824] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 63.930946] ? lockdep_hardirqs_on+0x37e/0x580 [ 63.936382] __device_attach+0x223/0x3a0 [ 63.940646] ? device_bind_driver+0xe0/0xe0 [ 63.944954] ? kobject_uevent_env+0x295/0x13d0 [ 63.949521] bus_probe_device+0x1f1/0x2a0 [ 63.953654] ? blocking_notifier_call_chain+0x59/0xb0 [ 63.959042] device_add+0xad2/0x16e0 [ 63.962769] ? get_device_parent.isra.0+0x560/0x560 [ 63.970462] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 63.975883] usb_set_configuration+0xdf7/0x1740 [ 63.980539] generic_probe+0xa2/0xda [ 63.984232] usb_probe_device+0xc0/0x150 [ 63.988274] ? usb_suspend+0x5f0/0x5f0 [ 63.992143] really_probe+0x2da/0xb10 [ 63.995921] driver_probe_device+0x21d/0x350 [ 64.000312] __device_attach_driver+0x1d8/0x290 [ 64.007366] ? driver_allows_async_probing+0x160/0x160 [ 64.013485] bus_for_each_drv+0x163/0x1e0 [ 64.017736] ? bus_rescan_devices+0x30/0x30 [ 64.022044] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 64.027198] ? lockdep_hardirqs_on+0x37e/0x580 [ 64.031771] __device_attach+0x223/0x3a0 [ 64.035906] ? device_bind_driver+0xe0/0xe0 [ 64.041023] ? kobject_uevent_env+0x295/0x13d0 [ 64.046185] bus_probe_device+0x1f1/0x2a0 [ 64.050681] ? blocking_notifier_call_chain+0x59/0xb0 [ 64.055897] device_add+0xad2/0x16e0 [ 64.059615] ? get_device_parent.isra.0+0x560/0x560 [ 64.064622] usb_new_device.cold+0x537/0xccf [ 64.069014] hub_event+0x138e/0x3b00 [ 64.072747] ? hub_port_debounce+0x350/0x350 [ 64.077177] ? _raw_spin_unlock_irq+0x29/0x40 [ 64.082453] process_one_work+0x90f/0x1580 [ 64.088178] ? wq_pool_ids_show+0x300/0x300 [ 64.093567] ? do_raw_spin_lock+0x11f/0x290 [ 64.097901] worker_thread+0x9b/0xe20 [ 64.101693] ? process_one_work+0x1580/0x1580 [ 64.106169] kthread+0x313/0x420 [ 64.109519] ? kthread_park+0x1a0/0x1a0 [ 64.113490] ret_from_fork+0x3a/0x50 [ 64.117271] kasan: CONFIG_KASAN_INLINE enabled [ 64.121941] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 64.131057] general protection fault: 0000 [#1] SMP KASAN PTI [ 64.136945] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.1.0-rc4-319354-g9a33b36 #3 [ 64.144909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.154282] Workqueue: usb_hub_wq hub_event [ 64.158698] RIP: 0010:__list_add_valid+0x47/0xa0 [ 64.164793] Code: fa 48 c1 ea 03 80 3c 02 00 75 50 49 8b 54 24 08 48 39 f2 0f 85 59 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 f2 48 c1 ea 03 <80> 3c 02 00 75 3a 48 8b 16 4c 39 e2 0f 85 5e 01 00 00 48 39 f5 0f [ 64.183923] RSP: 0018:ffff8880a84b7110 EFLAGS: 00010046 [ 64.189272] RAX: dffffc0000000000 RBX: ffff888096962550 RCX: 0000000000000000 [ 64.202865] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888096962598 [ 64.210122] RBP: ffff8880a84b7170 R08: ffff8880a84a6200 R09: ffffed1015096e31 [ 64.217393] R10: ffffed1015096e30 R11: 0000000000000003 R12: ffff888096962590 [ 64.224647] R13: 0000000000000000 R14: ffff888096962598 R15: ffff888096962590 [ 64.238017] FS: 0000000000000000(0000) GS:ffff8880ad000000(0000) knlGS:0000000000000000 [ 64.246247] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.252117] CR2: 00007f254fb75000 CR3: 000000009ab12000 CR4: 00000000001406f0 [ 64.259369] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.266645] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.281223] Call Trace: [ 64.283809] __down+0xa7/0x2c0 [ 64.287004] ? ww_mutex_lock+0xc0/0xc0 [ 64.290898] ? rwlock_bug.part.0+0x90/0x90 [ 64.295122] down+0x5c/0x80 [ 64.298038] vmk80xx_detach+0x59/0x100 [ 64.302141] comedi_device_detach+0xed/0x800 [ 64.311734] comedi_device_cleanup.part.0+0x68/0x140 [ 64.317213] comedi_free_board_dev.part.0+0x16/0x90 [ 64.322218] comedi_release_hardware_device+0x111/0x140 [ 64.327579] comedi_auto_config.cold+0x124/0x1b0 [ 64.332368] usb_probe_interface+0x31d/0x820 [ 64.336947] ? usb_probe_device+0x150/0x150 [ 64.341257] really_probe+0x2da/0xb10 [ 64.348582] driver_probe_device+0x21d/0x350 [ 64.352996] __device_attach_driver+0x1d8/0x290 [ 64.357648] ? driver_allows_async_probing+0x160/0x160 [ 64.362921] bus_for_each_drv+0x163/0x1e0 [ 64.367050] ? bus_rescan_devices+0x30/0x30 [ 64.371363] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 64.378246] ? lockdep_hardirqs_on+0x37e/0x580 [ 64.383605] __device_attach+0x223/0x3a0 [ 64.388206] ? device_bind_driver+0xe0/0xe0 [ 64.392536] ? kobject_uevent_env+0x295/0x13d0 [ 64.397105] bus_probe_device+0x1f1/0x2a0 [ 64.401240] ? blocking_notifier_call_chain+0x59/0xb0 [ 64.406407] device_add+0xad2/0x16e0 [ 64.410133] ? get_device_parent.isra.0+0x560/0x560 [ 64.418594] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 64.423693] usb_set_configuration+0xdf7/0x1740 [ 64.428352] generic_probe+0xa2/0xda [ 64.432050] usb_probe_device+0xc0/0x150 [ 64.436107] ? usb_suspend+0x5f0/0x5f0 [ 64.439974] really_probe+0x2da/0xb10 [ 64.443778] driver_probe_device+0x21d/0x350 [ 64.448290] __device_attach_driver+0x1d8/0x290 [ 64.453766] ? driver_allows_async_probing+0x160/0x160 [ 64.459640] bus_for_each_drv+0x163/0x1e0 [ 64.463779] ? bus_rescan_devices+0x30/0x30 [ 64.468116] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 64.473207] ? lockdep_hardirqs_on+0x37e/0x580 [ 64.477769] __device_attach+0x223/0x3a0 [ 64.481818] ? device_bind_driver+0xe0/0xe0 [ 64.486129] ? kobject_uevent_env+0x295/0x13d0 [ 64.490946] bus_probe_device+0x1f1/0x2a0 [ 64.495348] ? blocking_notifier_call_chain+0x59/0xb0 [ 64.500522] device_add+0xad2/0x16e0 [ 64.504219] ? get_device_parent.isra.0+0x560/0x560 [ 64.509221] usb_new_device.cold+0x537/0xccf [ 64.513722] hub_event+0x138e/0x3b00 [ 64.528496] ? hub_port_debounce+0x350/0x350 [ 64.533220] ? _raw_spin_unlock_irq+0x29/0x40 [ 64.537800] process_one_work+0x90f/0x1580 [ 64.542200] ? wq_pool_ids_show+0x300/0x300 [ 64.546524] ? do_raw_spin_lock+0x11f/0x290 [ 64.550828] worker_thread+0x9b/0xe20 [ 64.554611] ? process_one_work+0x1580/0x1580 [ 64.559091] kthread+0x313/0x420 [ 64.562434] ? kthread_park+0x1a0/0x1a0 [ 64.566391] ret_from_fork+0x3a/0x50 [ 64.570109] Modules linked in: [ 64.573744] ---[ end trace 6890c2017912b1c3 ]--- [ 64.578737] RIP: 0010:__list_add_valid+0x47/0xa0 [ 64.584046] Code: fa 48 c1 ea 03 80 3c 02 00 75 50 49 8b 54 24 08 48 39 f2 0f 85 59 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 f2 48 c1 ea 03 <80> 3c 02 00 75 3a 48 8b 16 4c 39 e2 0f 85 5e 01 00 00 48 39 f5 0f [ 64.603055] RSP: 0018:ffff8880a84b7110 EFLAGS: 00010046 [ 64.608525] RAX: dffffc0000000000 RBX: ffff888096962550 RCX: 0000000000000000 [ 64.617407] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888096962598 [ 64.624695] RBP: ffff8880a84b7170 R08: ffff8880a84a6200 R09: ffffed1015096e31 [ 64.632235] R10: ffffed1015096e30 R11: 0000000000000003 R12: ffff888096962590 [ 64.646265] R13: 0000000000000000 R14: ffff888096962598 R15: ffff888096962590 [ 64.655278] FS: 0000000000000000(0000) GS:ffff8880ad000000(0000) knlGS:0000000000000000 [ 64.663898] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.669776] CR2: 00007f254fb75000 CR3: 000000009ab12000 CR4: 00000000001406f0 [ 64.677044] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.684304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.691810] Kernel panic - not syncing: Fatal exception [ 64.698086] Kernel Offset: disabled [ 64.701725] Rebooting in 86400 seconds..