[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 85.598774][ T31] audit: type=1800 audit(1559786298.644:25): pid=11428 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 85.632336][ T31] audit: type=1800 audit(1559786298.674:26): pid=11428 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 85.653005][ T31] audit: type=1800 audit(1559786298.684:27): pid=11428 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.133' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 96.032027][T11580] IPVS: ftp: loaded support on port[0] = 21 [ 96.342401][ T17] usb 1-1: new low-speed USB device number 2 using dummy_hcd [ 96.702424][ T17] usb 1-1: config 0 has an invalid interface number: 212 but max is 0 [ 96.710744][ T17] usb 1-1: config 0 has no interface number 0 [ 96.717241][ T17] usb 1-1: New USB device found, idVendor=050d, idProduct=945a, bcdDevice=f1.a1 [ 96.726390][ T17] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 96.736157][ T17] usb 1-1: config 0 descriptor?? [ 96.778678][ T17] r8712u: register rtl8712_netdev_ops to netdev_ops [ 96.785514][ T17] usb 1-1: r8712u: USB_SPEED_LOW with 0 endpoints [ 96.952516][ T17] usb 1-1: r8712u: Boot from EFUSE: Autoload Failed [ 96.959257][ T17] ================================================================== [ 96.967386][ T17] BUG: KMSAN: uninit-value in r871xu_drv_init+0x17c6/0x2ad0 [ 96.974678][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.1.0+ #1 [ 96.981684][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.991902][ T17] Workqueue: usb_hub_wq hub_event [ 96.996928][ T17] Call Trace: [ 97.003939][ T17] dump_stack+0x191/0x1f0 [ 97.008293][ T17] kmsan_report+0x130/0x2a0 [ 97.012797][ T17] __msan_warning+0x75/0xe0 [ 97.017319][ T17] r871xu_drv_init+0x17c6/0x2ad0 [ 97.022282][ T17] ? r871x_dev_unload+0x2e0/0x2e0 [ 97.027315][ T17] ? r871x_dev_unload+0x2e0/0x2e0 [ 97.032351][ T17] usb_probe_interface+0xd66/0x1320 [ 97.037572][ T17] ? usb_register_driver+0x7d0/0x7d0 [ 97.042870][ T17] really_probe+0xdae/0x1d80 [ 97.047475][ T17] driver_probe_device+0x1b3/0x4f0 [ 97.052687][ T17] __device_attach_driver+0x5b8/0x790 [ 97.058158][ T17] bus_for_each_drv+0x28e/0x3b0 [ 97.063001][ T17] ? deferred_probe_work_func+0x400/0x400 [ 97.068716][ T17] __device_attach+0x454/0x730 [ 97.073530][ T17] device_initial_probe+0x4a/0x60 [ 97.078675][ T17] bus_probe_device+0x137/0x390 [ 97.083537][ T17] device_add+0x288d/0x30e0 [ 97.088077][ T17] usb_set_configuration+0x30dc/0x3750 [ 97.093601][ T17] generic_probe+0xe7/0x280 [ 97.098122][ T17] ? usb_choose_configuration+0xae0/0xae0 [ 97.103953][ T17] usb_probe_device+0x14c/0x200 [ 97.108817][ T17] ? usb_register_device_driver+0x470/0x470 [ 97.114792][ T17] really_probe+0xdae/0x1d80 [ 97.119404][ T17] driver_probe_device+0x1b3/0x4f0 [ 97.124602][ T17] __device_attach_driver+0x5b8/0x790 [ 97.130025][ T17] bus_for_each_drv+0x28e/0x3b0 [ 97.134870][ T17] ? deferred_probe_work_func+0x400/0x400 [ 97.140585][ T17] __device_attach+0x454/0x730 [ 97.145464][ T17] device_initial_probe+0x4a/0x60 [ 97.150527][ T17] bus_probe_device+0x137/0x390 [ 97.155397][ T17] device_add+0x288d/0x30e0 [ 97.159919][ T17] usb_new_device+0x23e5/0x2ff0 [ 97.164870][ T17] hub_event+0x48d1/0x7290 [ 97.169350][ T17] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 97.175231][ T17] ? led_work+0x720/0x720 [ 97.179556][ T17] ? led_work+0x720/0x720 [ 97.183887][ T17] process_one_work+0x1572/0x1f00 [ 97.188925][ T17] worker_thread+0x111b/0x2460 [ 97.193733][ T17] kthread+0x4b5/0x4f0 [ 97.197793][ T17] ? process_one_work+0x1f00/0x1f00 [ 97.202986][ T17] ? kthread_blkcg+0xf0/0xf0 [ 97.207595][ T17] ret_from_fork+0x35/0x40 [ 97.212014][ T17] [ 97.214326][ T17] Local variable description: ----data@usb_read8 [ 97.220717][ T17] Variable was created at: [ 97.225117][ T17] usb_read8+0x5d/0x130 [ 97.229255][ T17] r8712_read8+0xaa/0xd0 [ 97.233500][ T17] ================================================================== [ 97.241556][ T17] Disabling lock debugging due to kernel taint [ 97.247697][ T17] Kernel panic - not syncing: panic_on_warn set ... [ 97.254271][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Tainted: G B 5.1.0+ #1 [ 97.262661][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.272718][ T17] Workqueue: usb_hub_wq hub_event [ 97.277742][ T17] Call Trace: [ 97.281060][ T17] dump_stack+0x191/0x1f0 [ 97.285407][ T17] panic+0x3ca/0xafe [ 97.289340][ T17] kmsan_report+0x298/0x2a0 [ 97.293844][ T17] __msan_warning+0x75/0xe0 [ 97.298342][ T17] r871xu_drv_init+0x17c6/0x2ad0 [ 97.303285][ T17] ? r871x_dev_unload+0x2e0/0x2e0 [ 97.308302][ T17] ? r871x_dev_unload+0x2e0/0x2e0 [ 97.313319][ T17] usb_probe_interface+0xd66/0x1320 [ 97.318873][ T17] ? usb_register_driver+0x7d0/0x7d0 [ 97.324151][ T17] really_probe+0xdae/0x1d80 [ 97.328746][ T17] driver_probe_device+0x1b3/0x4f0 [ 97.333863][ T17] __device_attach_driver+0x5b8/0x790 [ 97.339239][ T17] bus_for_each_drv+0x28e/0x3b0 [ 97.344084][ T17] ? deferred_probe_work_func+0x400/0x400 [ 97.349797][ T17] __device_attach+0x454/0x730 [ 97.354570][ T17] device_initial_probe+0x4a/0x60 [ 97.359592][ T17] bus_probe_device+0x137/0x390 [ 97.364440][ T17] device_add+0x288d/0x30e0 [ 97.368963][ T17] usb_set_configuration+0x30dc/0x3750 [ 97.374463][ T17] generic_probe+0xe7/0x280 [ 97.378960][ T17] ? usb_choose_configuration+0xae0/0xae0 [ 97.384673][ T17] usb_probe_device+0x14c/0x200 [ 97.389602][ T17] ? usb_register_device_driver+0x470/0x470 [ 97.395485][ T17] really_probe+0xdae/0x1d80 [ 97.400110][ T17] driver_probe_device+0x1b3/0x4f0 [ 97.405217][ T17] __device_attach_driver+0x5b8/0x790 [ 97.410590][ T17] bus_for_each_drv+0x28e/0x3b0 [ 97.415447][ T17] ? deferred_probe_work_func+0x400/0x400 [ 97.421170][ T17] __device_attach+0x454/0x730 [ 97.425936][ T17] device_initial_probe+0x4a/0x60 [ 97.430957][ T17] bus_probe_device+0x137/0x390 [ 97.435816][ T17] device_add+0x288d/0x30e0 [ 97.440429][ T17] usb_new_device+0x23e5/0x2ff0 [ 97.445301][ T17] hub_event+0x48d1/0x7290 [ 97.449766][ T17] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 97.455746][ T17] ? led_work+0x720/0x720 [ 97.460065][ T17] ? led_work+0x720/0x720 [ 97.464401][ T17] process_one_work+0x1572/0x1f00 [ 97.469435][ T17] worker_thread+0x111b/0x2460 [ 97.474222][ T17] kthread+0x4b5/0x4f0 [ 97.478279][ T17] ? process_one_work+0x1f00/0x1f00 [ 97.483561][ T17] ? kthread_blkcg+0xf0/0xf0 [ 97.488141][ T17] ret_from_fork+0x35/0x40 [ 97.493887][ T17] Kernel Offset: disabled [ 97.498229][ T17] Rebooting in 86400 seconds..