[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 106.446341][ T31] audit: type=1800 audit(1562708416.504:25): pid=12665 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 106.470494][ T31] audit: type=1800 audit(1562708416.524:26): pid=12665 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 106.512522][ T31] audit: type=1800 audit(1562708416.554:27): pid=12665 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 '10.128.1.39' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 120.592574][ T695] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 120.832510][ T695] usb 1-1: Using ep0 maxpacket: 8 [ 120.952643][ T695] usb 1-1: config 0 has an invalid interface number: 128 but max is 0 [ 120.960899][ T695] usb 1-1: config 0 has no interface number 0 [ 120.967233][ T695] usb 1-1: config 0 interface 128 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 120.977299][ T695] usb 1-1: config 0 interface 128 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 120.987538][ T695] usb 1-1: New USB device found, idVendor=0424, idProduct=9908, bcdDevice=6a.5e [ 120.996765][ T695] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 121.006612][ T695] usb 1-1: config 0 descriptor?? [ 121.044545][ T695] smsc95xx v1.0.6 [ 121.442652][ T695] ================================================================== [ 121.451197][ T695] BUG: KMSAN: uninit-value in smsc95xx_read_eeprom+0x203/0x920 [ 121.459078][ T695] CPU: 1 PID: 695 Comm: kworker/1:2 Not tainted 5.2.0-rc4+ #11 [ 121.466767][ T695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 121.477182][ T695] Workqueue: usb_hub_wq hub_event [ 121.482221][ T695] Call Trace: [ 121.485733][ T695] dump_stack+0x191/0x1f0 [ 121.490092][ T695] kmsan_report+0x162/0x2d0 [ 121.494672][ T695] __msan_warning+0x75/0xe0 [ 121.499312][ T695] smsc95xx_read_eeprom+0x203/0x920 [ 121.504689][ T695] smsc95xx_bind+0x467/0x1690 [ 121.515002][ T695] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 121.521265][ T695] ? smsc95xx_mdio_write+0xc10/0xc10 [ 121.526863][ T695] usbnet_probe+0x10d3/0x3950 [ 121.531553][ T695] ? kmsan_internal_memset_shadow+0x104/0x3a0 [ 121.538082][ T695] ? usbnet_disconnect+0x660/0x660 [ 121.543224][ T695] usb_probe_interface+0xd19/0x1310 [ 121.548775][ T695] ? usb_register_driver+0x7d0/0x7d0 [ 121.554075][ T695] really_probe+0x1344/0x1d90 [ 121.558865][ T695] driver_probe_device+0x1ba/0x510 [ 121.564020][ T695] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 121.570251][ T695] __device_attach_driver+0x5b8/0x790 [ 121.575780][ T695] bus_for_each_drv+0x28e/0x3b0 [ 121.580980][ T695] ? deferred_probe_work_func+0x400/0x400 [ 121.587717][ T695] __device_attach+0x489/0x750 [ 121.592768][ T695] device_initial_probe+0x4a/0x60 [ 121.597818][ T695] bus_probe_device+0x131/0x390 [ 121.603368][ T695] device_add+0x25b5/0x2df0 [ 121.607969][ T695] usb_set_configuration+0x309f/0x3710 [ 121.613763][ T695] generic_probe+0xe7/0x280 [ 121.618452][ T695] ? usb_choose_configuration+0xae0/0xae0 [ 121.624453][ T695] usb_probe_device+0x146/0x200 [ 121.629345][ T695] ? usb_register_device_driver+0x470/0x470 [ 121.635250][ T695] really_probe+0x1344/0x1d90 [ 121.640111][ T695] driver_probe_device+0x1ba/0x510 [ 121.645236][ T695] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 121.651188][ T695] __device_attach_driver+0x5b8/0x790 [ 121.656578][ T695] bus_for_each_drv+0x28e/0x3b0 [ 121.661518][ T695] ? deferred_probe_work_func+0x400/0x400 [ 121.667926][ T695] __device_attach+0x489/0x750 [ 121.672706][ T695] device_initial_probe+0x4a/0x60 [ 121.677742][ T695] bus_probe_device+0x131/0x390 [ 121.682761][ T695] device_add+0x25b5/0x2df0 [ 121.687472][ T695] usb_new_device+0x23e5/0x2fb0 [ 121.692663][ T695] hub_event+0x5853/0x7320 [ 121.697160][ T695] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 121.703252][ T695] ? led_work+0x720/0x720 [ 121.707586][ T695] ? led_work+0x720/0x720 [ 121.711927][ T695] process_one_work+0x1572/0x1f00 [ 121.717061][ T695] worker_thread+0x111b/0x2460 [ 121.721877][ T695] kthread+0x4b5/0x4f0 [ 121.727024][ T695] ? process_one_work+0x1f00/0x1f00 [ 121.732521][ T695] ? kthread_blkcg+0xf0/0xf0 [ 121.737122][ T695] ret_from_fork+0x35/0x40 [ 121.741833][ T695] [ 121.744165][ T695] Local variable description: ----buf.i.i86@smsc95xx_read_eeprom [ 121.751986][ T695] Variable was created at: [ 121.756481][ T695] smsc95xx_read_eeprom+0x109/0x920 [ 121.761988][ T695] smsc95xx_bind+0x467/0x1690 [ 121.766686][ T695] ================================================================== [ 121.774884][ T695] Disabling lock debugging due to kernel taint [ 121.782436][ T695] Kernel panic - not syncing: panic_on_warn set ... [ 121.790253][ T695] CPU: 1 PID: 695 Comm: kworker/1:2 Tainted: G B 5.2.0-rc4+ #11 [ 121.799803][ T695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 121.811016][ T695] Workqueue: usb_hub_wq hub_event [ 121.816206][ T695] Call Trace: [ 121.819703][ T695] dump_stack+0x191/0x1f0 [ 121.824063][ T695] panic+0x3c9/0xc1e [ 121.828010][ T695] kmsan_report+0x2ca/0x2d0 [ 121.832539][ T695] __msan_warning+0x75/0xe0 [ 121.837243][ T695] smsc95xx_read_eeprom+0x203/0x920 [ 121.842739][ T695] smsc95xx_bind+0x467/0x1690 [ 121.847437][ T695] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 121.853562][ T695] ? smsc95xx_mdio_write+0xc10/0xc10 [ 121.859482][ T695] usbnet_probe+0x10d3/0x3950 [ 121.864308][ T695] ? kmsan_internal_memset_shadow+0x104/0x3a0 [ 121.870681][ T695] ? usbnet_disconnect+0x660/0x660 [ 121.876115][ T695] usb_probe_interface+0xd19/0x1310 [ 121.889840][ T695] ? usb_register_driver+0x7d0/0x7d0 [ 121.895256][ T695] really_probe+0x1344/0x1d90 [ 121.900410][ T695] driver_probe_device+0x1ba/0x510 [ 121.906082][ T695] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 121.912101][ T695] __device_attach_driver+0x5b8/0x790 [ 121.917513][ T695] bus_for_each_drv+0x28e/0x3b0 [ 121.922802][ T695] ? deferred_probe_work_func+0x400/0x400 [ 121.928634][ T695] __device_attach+0x489/0x750 [ 121.933497][ T695] device_initial_probe+0x4a/0x60 [ 121.938736][ T695] bus_probe_device+0x131/0x390 [ 121.943615][ T695] device_add+0x25b5/0x2df0 [ 121.948600][ T695] usb_set_configuration+0x309f/0x3710 [ 121.954743][ T695] generic_probe+0xe7/0x280 [ 121.959327][ T695] ? usb_choose_configuration+0xae0/0xae0 [ 121.965065][ T695] usb_probe_device+0x146/0x200 [ 121.970018][ T695] ? usb_register_device_driver+0x470/0x470 [ 121.976178][ T695] really_probe+0x1344/0x1d90 [ 121.980975][ T695] driver_probe_device+0x1ba/0x510 [ 121.986262][ T695] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 121.992275][ T695] __device_attach_driver+0x5b8/0x790 [ 121.997715][ T695] bus_for_each_drv+0x28e/0x3b0 [ 122.002774][ T695] ? deferred_probe_work_func+0x400/0x400 [ 122.008753][ T695] __device_attach+0x489/0x750 [ 122.013794][ T695] device_initial_probe+0x4a/0x60 [ 122.018891][ T695] bus_probe_device+0x131/0x390 [ 122.023910][ T695] device_add+0x25b5/0x2df0 [ 122.028539][ T695] usb_new_device+0x23e5/0x2fb0 [ 122.033943][ T695] hub_event+0x5853/0x7320 [ 122.038874][ T695] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 122.044779][ T695] ? led_work+0x720/0x720 [ 122.049116][ T695] ? led_work+0x720/0x720 [ 122.053630][ T695] process_one_work+0x1572/0x1f00 [ 122.059201][ T695] worker_thread+0x111b/0x2460 [ 122.064281][ T695] kthread+0x4b5/0x4f0 [ 122.068358][ T695] ? process_one_work+0x1f00/0x1f00 [ 122.073776][ T695] ? kthread_blkcg+0xf0/0xf0 [ 122.078543][ T695] ret_from_fork+0x35/0x40 [ 122.084633][ T695] Kernel Offset: disabled [ 122.089000][ T695] Rebooting in 86400 seconds..