[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. [ 14.655704][ C1] random: crng init done [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.44' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 49.203302][ T21] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 49.443269][ T21] usb 1-1: Using ep0 maxpacket: 8 [ 49.563316][ T21] usb 1-1: config 0 has an invalid interface number: 25 but max is 0 [ 49.571602][ T21] usb 1-1: config 0 has no interface number 0 [ 49.577915][ T21] usb 1-1: New USB device found, idVendor=0bda, idProduct=817d, bcdDevice=4d.a5 [ 49.587143][ T21] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 49.596602][ T21] usb 1-1: config 0 descriptor?? executing program [ 50.003290][ T21] rtl_usb: reg 0xf0, usbctrl_vendorreq TimeOut! status:0xffffffb9 value=0x0 [ 50.012091][ T21] rtl8192cu: Chip version 0x10 [ 50.213287][ T21] rtl_usb: reg 0xa, usbctrl_vendorreq TimeOut! status:0xffffffb9 value=0x0 [ 50.222259][ T21] rtl_usb: Too few input end points found [ 50.228063][ T21] INFO: trying to register non-static key. [ 50.233903][ T21] the code is fine but needs lockdep annotation. [ 50.240210][ T21] turning off the locking correctness validator. [ 50.246556][ T21] CPU: 1 PID: 21 Comm: kworker/1:1 Not tainted 5.2.0-rc6+ #13 [ 50.253989][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.264173][ T21] Workqueue: usb_hub_wq hub_event [ 50.269434][ T21] Call Trace: [ 50.272742][ T21] dump_stack+0xca/0x13e [ 50.277157][ T21] register_lock_class+0x11ae/0x1240 [ 50.282627][ T21] ? is_dynamic_key+0x1b0/0x1b0 [ 50.287461][ T21] __lock_acquire+0x11d/0x5340 [ 50.292396][ T21] ? trace_hardirqs_off+0x50/0x1c0 [ 50.297502][ T21] ? find_held_lock+0x2d/0x110 [ 50.302310][ T21] ? console_unlock+0x5d1/0xbf0 [ 50.307157][ T21] ? mark_held_locks+0xe0/0xe0 [ 50.311998][ T21] ? lock_downgrade+0x630/0x630 [ 50.316828][ T21] ? mark_held_locks+0x9f/0xe0 [ 50.321572][ T21] ? console_unlock+0x8b5/0xbf0 [ 50.326403][ T21] ? netconsole_netdev_event+0x2a0/0x2a0 [ 50.332017][ T21] ? lockdep_hardirqs_on+0x379/0x580 [ 50.337291][ T21] ? console_unlock+0x615/0xbf0 [ 50.342993][ T21] lock_acquire+0x100/0x2b0 [ 50.347621][ T21] ? rtl_c2hcmd_launcher+0xcc/0x390 [ 50.352798][ T21] _raw_spin_lock_irqsave+0x32/0x50 [ 50.357980][ T21] ? rtl_c2hcmd_launcher+0xcc/0x390 [ 50.363170][ T21] rtl_c2hcmd_launcher+0xcc/0x390 [ 50.368187][ T21] rtl_deinit_core+0x20/0x2d0 [ 50.372846][ T21] ? rtl_usb_probe.cold+0x83c/0xa65 [ 50.378151][ T21] rtl_usb_probe.cold+0x855/0xa65 [ 50.383291][ T21] usb_probe_interface+0x305/0x7a0 [ 50.388547][ T21] ? usb_probe_device+0x100/0x100 [ 50.393732][ T21] really_probe+0x281/0x660 [ 50.398287][ T21] driver_probe_device+0x104/0x210 [ 50.403404][ T21] __device_attach_driver+0x1c2/0x220 [ 50.408792][ T21] ? driver_allows_async_probing+0x160/0x160 [ 50.415028][ T21] bus_for_each_drv+0x15c/0x1e0 [ 50.419999][ T21] ? bus_rescan_devices+0x20/0x20 [ 50.425009][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.430793][ T21] ? lockdep_hardirqs_on+0x379/0x580 [ 50.436055][ T21] __device_attach+0x217/0x360 [ 50.440806][ T21] ? device_bind_driver+0xd0/0xd0 [ 50.445811][ T21] ? kobject_uevent_env+0x29e/0x1150 [ 50.451115][ T21] ? kobject_uevent_env+0x2a8/0x1150 [ 50.456741][ T21] bus_probe_device+0x1e4/0x290 [ 50.461622][ T21] ? blocking_notifier_call_chain+0x54/0xa0 [ 50.467496][ T21] device_add+0xae6/0x16f0 [ 50.471895][ T21] ? uevent_store+0x50/0x50 [ 50.476468][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.482252][ T21] usb_set_configuration+0xdf6/0x1670 [ 50.487744][ T21] generic_probe+0x9d/0xd5 [ 50.492142][ T21] usb_probe_device+0x99/0x100 [ 50.496883][ T21] ? usb_suspend+0x620/0x620 [ 50.501461][ T21] really_probe+0x281/0x660 [ 50.505957][ T21] driver_probe_device+0x104/0x210 [ 50.511048][ T21] __device_attach_driver+0x1c2/0x220 [ 50.516404][ T21] ? driver_allows_async_probing+0x160/0x160 [ 50.522365][ T21] bus_for_each_drv+0x15c/0x1e0 [ 50.527199][ T21] ? bus_rescan_devices+0x20/0x20 [ 50.532204][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.538013][ T21] ? lockdep_hardirqs_on+0x379/0x580 [ 50.543284][ T21] __device_attach+0x217/0x360 [ 50.548040][ T21] ? device_bind_driver+0xd0/0xd0 [ 50.553041][ T21] ? kobject_uevent_env+0x29e/0x1150 [ 50.558305][ T21] ? kobject_uevent_env+0x2a8/0x1150 [ 50.563577][ T21] bus_probe_device+0x1e4/0x290 [ 50.568445][ T21] ? blocking_notifier_call_chain+0x54/0xa0 [ 50.574410][ T21] device_add+0xae6/0x16f0 [ 50.578813][ T21] ? uevent_store+0x50/0x50 [ 50.583396][ T21] usb_new_device.cold+0x8c1/0x1016 [ 50.588575][ T21] ? usb_port_suspend+0xa40/0xa40 [ 50.593580][ T21] ? mark_held_locks+0x9f/0xe0 [ 50.598483][ T21] ? _raw_spin_unlock_irq+0x24/0x30 [ 50.603704][ T21] hub_event+0x1ada/0x3590 [ 50.608320][ T21] ? hub_port_debounce+0x260/0x260 [ 50.613429][ T21] process_one_work+0x905/0x1570 [ 50.618794][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 50.624204][ T21] ? do_raw_spin_lock+0x11a/0x280 [ 50.629393][ T21] worker_thread+0x96/0xe20 [ 50.634065][ T21] ? process_one_work+0x1570/0x1570 [ 50.639324][ T21] kthread+0x30b/0x410 [ 50.643913][ T21] ? kthread_park+0x1a0/0x1a0 [ 50.648869][ T21] ret_from_fork+0x24/0x30 [ 50.653381][ T21] kasan: CONFIG_KASAN_INLINE enabled [ 50.658668][ T21] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 50.666812][ T21] general protection fault: 0000 [#1] SMP KASAN [ 50.673259][ T21] CPU: 1 PID: 21 Comm: kworker/1:1 Not tainted 5.2.0-rc6+ #13 [ 50.680713][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.691149][ T21] Workqueue: usb_hub_wq hub_event [ 50.696189][ T21] RIP: 0010:rtl_deinit_core+0x7f/0x2d0 [ 50.703057][ T21] Code: 4c 89 f2 48 c1 ea 03 80 3c 02 00 0f 85 52 02 00 00 4d 8b bc 24 c8 c4 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 22 02 00 00 4d 39 f7 4d 8b 2f 4c 89 ff 0f 84 3d [ 50.726087][ T21] RSP: 0018:ffff8881d9eff1c8 EFLAGS: 00010246 [ 50.732675][ T21] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffffffff0f5a296 [ 50.741505][ T21] RDX: 0000000000000000 RSI: ffffffff8303ce30 RDI: ffff8881cf6f0b68 [ 50.750041][ T21] RBP: ffff8881cf6f0b20 R08: ffff8881d9e36000 R09: ffffed1039ede521 [ 50.759943][ T21] R10: ffffed1039ede520 R11: ffff8881cf6f2903 R12: ffff8881cf6f2560 [ 50.768213][ T21] R13: ffff8881d348f2a8 R14: ffff8881cf6fea28 R15: 0000000000000000 [ 50.776561][ T21] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 50.785779][ T21] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.792489][ T21] CR2: 00007f6b21af4000 CR3: 00000001d541e000 CR4: 00000000001406e0 [ 50.801301][ T21] Call Trace: [ 50.804613][ T21] ? rtl_usb_probe.cold+0x83c/0xa65 [ 50.809871][ T21] rtl_usb_probe.cold+0x855/0xa65 [ 50.815229][ T21] usb_probe_interface+0x305/0x7a0 [ 50.820457][ T21] ? usb_probe_device+0x100/0x100 [ 50.825494][ T21] really_probe+0x281/0x660 [ 50.830270][ T21] driver_probe_device+0x104/0x210 [ 50.835534][ T21] __device_attach_driver+0x1c2/0x220 [ 50.841052][ T21] ? driver_allows_async_probing+0x160/0x160 [ 50.847132][ T21] bus_for_each_drv+0x15c/0x1e0 [ 50.851990][ T21] ? bus_rescan_devices+0x20/0x20 [ 50.857090][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.862943][ T21] ? lockdep_hardirqs_on+0x379/0x580 [ 50.868314][ T21] __device_attach+0x217/0x360 [ 50.873378][ T21] ? device_bind_driver+0xd0/0xd0 [ 50.878833][ T21] ? kobject_uevent_env+0x29e/0x1150 [ 50.884598][ T21] ? kobject_uevent_env+0x2a8/0x1150 [ 50.890019][ T21] bus_probe_device+0x1e4/0x290 [ 50.895053][ T21] ? blocking_notifier_call_chain+0x54/0xa0 [ 50.900952][ T21] device_add+0xae6/0x16f0 [ 50.905459][ T21] ? uevent_store+0x50/0x50 [ 50.909971][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.915936][ T21] usb_set_configuration+0xdf6/0x1670 [ 50.921399][ T21] generic_probe+0x9d/0xd5 [ 50.926041][ T21] usb_probe_device+0x99/0x100 [ 50.930914][ T21] ? usb_suspend+0x620/0x620 [ 50.935750][ T21] really_probe+0x281/0x660 [ 50.941190][ T21] driver_probe_device+0x104/0x210 [ 50.946615][ T21] __device_attach_driver+0x1c2/0x220 [ 50.952583][ T21] ? driver_allows_async_probing+0x160/0x160 [ 50.958764][ T21] bus_for_each_drv+0x15c/0x1e0 [ 50.963814][ T21] ? bus_rescan_devices+0x20/0x20 [ 50.969069][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 50.975168][ T21] ? lockdep_hardirqs_on+0x379/0x580 [ 50.980461][ T21] __device_attach+0x217/0x360 [ 50.985348][ T21] ? device_bind_driver+0xd0/0xd0 [ 50.990394][ T21] ? kobject_uevent_env+0x29e/0x1150 [ 50.995948][ T21] ? kobject_uevent_env+0x2a8/0x1150 [ 51.001297][ T21] bus_probe_device+0x1e4/0x290 [ 51.006160][ T21] ? blocking_notifier_call_chain+0x54/0xa0 [ 51.012172][ T21] device_add+0xae6/0x16f0 [ 51.016719][ T21] ? uevent_store+0x50/0x50 [ 51.021461][ T21] usb_new_device.cold+0x8c1/0x1016 [ 51.026811][ T21] ? usb_port_suspend+0xa40/0xa40 [ 51.032369][ T21] ? mark_held_locks+0x9f/0xe0 [ 51.037784][ T21] ? _raw_spin_unlock_irq+0x24/0x30 [ 51.043028][ T21] hub_event+0x1ada/0x3590 [ 51.047448][ T21] ? hub_port_debounce+0x260/0x260 [ 51.052573][ T21] process_one_work+0x905/0x1570 [ 51.057660][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 51.063804][ T21] ? do_raw_spin_lock+0x11a/0x280 [ 51.069087][ T21] worker_thread+0x96/0xe20 [ 51.073680][ T21] ? process_one_work+0x1570/0x1570 [ 51.078887][ T21] kthread+0x30b/0x410 [ 51.083071][ T21] ? kthread_park+0x1a0/0x1a0 [ 51.087865][ T21] ret_from_fork+0x24/0x30 [ 51.092378][ T21] Modules linked in: [ 51.096654][ T21] ---[ end trace 5f5d8b5b0ae17a36 ]--- [ 51.102253][ T21] RIP: 0010:rtl_deinit_core+0x7f/0x2d0 [ 51.107783][ T21] Code: 4c 89 f2 48 c1 ea 03 80 3c 02 00 0f 85 52 02 00 00 4d 8b bc 24 c8 c4 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 22 02 00 00 4d 39 f7 4d 8b 2f 4c 89 ff 0f 84 3d [ 51.128565][ T21] RSP: 0018:ffff8881d9eff1c8 EFLAGS: 00010246 [ 51.134711][ T21] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffffffff0f5a296 [ 51.142906][ T21] RDX: 0000000000000000 RSI: ffffffff8303ce30 RDI: ffff8881cf6f0b68 [ 51.150950][ T21] RBP: ffff8881cf6f0b20 R08: ffff8881d9e36000 R09: ffffed1039ede521 [ 51.159034][ T21] R10: ffffed1039ede520 R11: ffff8881cf6f2903 R12: ffff8881cf6f2560 [ 51.167157][ T21] R13: ffff8881d348f2a8 R14: ffff8881cf6fea28 R15: 0000000000000000 [ 51.175382][ T21] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 51.184431][ T21] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.191074][ T21] CR2: 00007f6b21af4000 CR3: 00000001d541e000 CR4: 00000000001406e0 [ 51.199239][ T21] Kernel panic - not syncing: Fatal exception [ 51.205700][ T21] Kernel Offset: disabled [ 51.210039][ T21] Rebooting in 86400 seconds..