[ 74.013600][ T30] audit: type=1800 audit(1561401352.042:26): pid=11273 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 74.033805][ T30] audit: type=1800 audit(1561401352.052:27): pid=11273 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 74.091520][ T30] audit: type=1800 audit(1561401352.122:28): pid=11273 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 75.490275][ T30] audit: type=1800 audit(1561401353.532:29): pid=11273 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.56' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 88.441838][ T5] usb 1-1: new full-speed USB device number 2 using dummy_hcd [ 88.801809][ T5] usb 1-1: config 0 has an invalid interface number: 183 but max is 0 [ 88.810023][ T5] usb 1-1: config 0 has no interface number 0 [ 88.816210][ T5] usb 1-1: New USB device found, idVendor=5032, idProduct=0fa1, bcdDevice=21.80 [ 88.825354][ T5] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 88.834725][ T5] usb 1-1: config 0 descriptor?? [ 88.874957][ T5] dvb-usb: found a 'Grandtec USB1.1 DVB-T' in warm state. [ 88.882407][ T5] dvb-usb: bulk message failed: -22 (3/-30591) [ 88.914441][ T5] dvb-usb: will use the device's hardware PID filter (table count: 16). [ 88.942757][ T5] dvbdev: DVB: registering new adapter (Grandtec USB1.1 DVB-T) [ 88.950350][ T5] usb 1-1: media controller created [ 88.957836][ T5] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 88.972085][ T5] dvb-usb: bulk message failed: -22 (6/-30592) [ 88.978334][ T5] ================================================================== [ 88.986415][ T5] BUG: KMSAN: uninit-value in dib3000mb_attach+0x340/0x450 [ 88.993610][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.2.0-rc4+ #5 [ 89.000860][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.010897][ T5] Workqueue: usb_hub_wq hub_event [ 89.015899][ T5] Call Trace: [ 89.019183][ T5] dump_stack+0x191/0x1f0 [ 89.023498][ T5] kmsan_report+0x162/0x2d0 [ 89.027985][ T5] __msan_warning+0x75/0xe0 [ 89.032466][ T5] dib3000mb_attach+0x340/0x450 [ 89.037305][ T5] dibusb_dib3000mb_frontend_attach+0x1af/0x3b0 [ 89.043552][ T5] ? tda8083_wait_diseqc_fifo+0x560/0x560 [ 89.049253][ T5] ? dibusb_probe+0x280/0x280 [ 89.053908][ T5] dvb_usb_adapter_frontend_init+0x105/0xa00 [ 89.059881][ T5] dvb_usb_device_init+0x2297/0x2cc0 [ 89.065380][ T5] dibusb_probe+0x75/0x280 [ 89.069815][ T5] ? a800_rc_query+0x430/0x430 [ 89.074582][ T5] usb_probe_interface+0xd19/0x1310 [ 89.079797][ T5] ? usb_register_driver+0x7d0/0x7d0 [ 89.085069][ T5] really_probe+0x1344/0x1d90 [ 89.089741][ T5] driver_probe_device+0x1ba/0x510 [ 89.094858][ T5] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 89.100731][ T5] __device_attach_driver+0x5b8/0x790 [ 89.106089][ T5] bus_for_each_drv+0x28e/0x3b0 [ 89.110914][ T5] ? deferred_probe_work_func+0x400/0x400 [ 89.116612][ T5] __device_attach+0x489/0x750 [ 89.121361][ T5] device_initial_probe+0x4a/0x60 [ 89.126359][ T5] bus_probe_device+0x131/0x390 [ 89.131191][ T5] device_add+0x25b5/0x2df0 [ 89.135709][ T5] usb_set_configuration+0x309f/0x3710 [ 89.141164][ T5] ? __msan_metadata_ptr_for_load_1+0x10/0x20 [ 89.147239][ T5] generic_probe+0xe7/0x280 [ 89.151738][ T5] ? usb_choose_configuration+0xae0/0xae0 [ 89.157435][ T5] usb_probe_device+0x146/0x200 [ 89.162305][ T5] ? usb_register_device_driver+0x470/0x470 [ 89.168285][ T5] really_probe+0x1344/0x1d90 [ 89.172954][ T5] driver_probe_device+0x1ba/0x510 [ 89.178054][ T5] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 89.183931][ T5] __device_attach_driver+0x5b8/0x790 [ 89.189297][ T5] bus_for_each_drv+0x28e/0x3b0 [ 89.194122][ T5] ? deferred_probe_work_func+0x400/0x400 [ 89.199826][ T5] __device_attach+0x489/0x750 [ 89.204605][ T5] device_initial_probe+0x4a/0x60 [ 89.209606][ T5] bus_probe_device+0x131/0x390 [ 89.214452][ T5] device_add+0x25b5/0x2df0 [ 89.218946][ T5] usb_new_device+0x23e5/0x2fb0 [ 89.223788][ T5] hub_event+0x5853/0x7320 [ 89.228222][ T5] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 89.234088][ T5] ? led_work+0x720/0x720 [ 89.238425][ T5] ? led_work+0x720/0x720 [ 89.242784][ T5] process_one_work+0x1572/0x1f00 [ 89.247819][ T5] worker_thread+0x111b/0x2460 [ 89.252580][ T5] kthread+0x4b5/0x4f0 [ 89.256625][ T5] ? process_one_work+0x1f00/0x1f00 [ 89.261824][ T5] ? kthread_blkcg+0xf0/0xf0 [ 89.266445][ T5] ret_from_fork+0x35/0x40 [ 89.270843][ T5] [ 89.273144][ T5] Local variable description: ----rb@dib3000_read_reg [ 89.279880][ T5] Variable was created at: [ 89.284277][ T5] dib3000_read_reg+0xdb/0x540 [ 89.289010][ T5] dib3000mb_attach+0x17d/0x450 [ 89.293839][ T5] ================================================================== [ 89.301881][ T5] Disabling lock debugging due to kernel taint [ 89.308005][ T5] Kernel panic - not syncing: panic_on_warn set ... [ 89.314578][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Tainted: G B 5.2.0-rc4+ #5 [ 89.323231][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.333260][ T5] Workqueue: usb_hub_wq hub_event [ 89.338269][ T5] Call Trace: [ 89.341533][ T5] dump_stack+0x191/0x1f0 [ 89.345852][ T5] panic+0x3c9/0xc1e [ 89.349758][ T5] kmsan_report+0x2ca/0x2d0 [ 89.354242][ T5] __msan_warning+0x75/0xe0 [ 89.358729][ T5] dib3000mb_attach+0x340/0x450 [ 89.363709][ T5] dibusb_dib3000mb_frontend_attach+0x1af/0x3b0 [ 89.372693][ T5] ? tda8083_wait_diseqc_fifo+0x560/0x560 [ 89.378425][ T5] ? dibusb_probe+0x280/0x280 [ 89.383091][ T5] dvb_usb_adapter_frontend_init+0x105/0xa00 [ 89.389078][ T5] dvb_usb_device_init+0x2297/0x2cc0 [ 89.394388][ T5] dibusb_probe+0x75/0x280 [ 89.398801][ T5] ? a800_rc_query+0x430/0x430 [ 89.403545][ T5] usb_probe_interface+0xd19/0x1310 [ 89.408738][ T5] ? usb_register_driver+0x7d0/0x7d0 [ 89.414005][ T5] really_probe+0x1344/0x1d90 [ 89.418700][ T5] driver_probe_device+0x1ba/0x510 [ 89.423802][ T5] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 89.429686][ T5] __device_attach_driver+0x5b8/0x790 [ 89.435055][ T5] bus_for_each_drv+0x28e/0x3b0 [ 89.439878][ T5] ? deferred_probe_work_func+0x400/0x400 [ 89.445584][ T5] __device_attach+0x489/0x750 [ 89.450337][ T5] device_initial_probe+0x4a/0x60 [ 89.455354][ T5] bus_probe_device+0x131/0x390 [ 89.460202][ T5] device_add+0x25b5/0x2df0 [ 89.464705][ T5] usb_set_configuration+0x309f/0x3710 [ 89.470196][ T5] ? __msan_metadata_ptr_for_load_1+0x10/0x20 [ 89.476266][ T5] generic_probe+0xe7/0x280 [ 89.480790][ T5] ? usb_choose_configuration+0xae0/0xae0 [ 89.486500][ T5] usb_probe_device+0x146/0x200 [ 89.491328][ T5] ? usb_register_device_driver+0x470/0x470 [ 89.497212][ T5] really_probe+0x1344/0x1d90 [ 89.501899][ T5] driver_probe_device+0x1ba/0x510 [ 89.507020][ T5] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 89.512893][ T5] __device_attach_driver+0x5b8/0x790 [ 89.518275][ T5] bus_for_each_drv+0x28e/0x3b0 [ 89.523107][ T5] ? deferred_probe_work_func+0x400/0x400 [ 89.528815][ T5] __device_attach+0x489/0x750 [ 89.533566][ T5] device_initial_probe+0x4a/0x60 [ 89.538587][ T5] bus_probe_device+0x131/0x390 [ 89.543451][ T5] device_add+0x25b5/0x2df0 [ 89.547968][ T5] usb_new_device+0x23e5/0x2fb0 [ 89.552843][ T5] hub_event+0x5853/0x7320 [ 89.557275][ T5] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 89.563158][ T5] ? led_work+0x720/0x720 [ 89.567466][ T5] ? led_work+0x720/0x720 [ 89.571773][ T5] process_one_work+0x1572/0x1f00 [ 89.576793][ T5] worker_thread+0x111b/0x2460 [ 89.581556][ T5] kthread+0x4b5/0x4f0 [ 89.585608][ T5] ? process_one_work+0x1f00/0x1f00 [ 89.590783][ T5] ? kthread_blkcg+0xf0/0xf0 [ 89.595346][ T5] ret_from_fork+0x35/0x40 [ 89.600745][ T5] Kernel Offset: disabled [ 89.605067][ T5] Rebooting in 86400 seconds..