[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 80.439536][ T31] audit: type=1800 audit(1567790245.496:25): pid=11851 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 80.462751][ T31] audit: type=1800 audit(1567790245.516:26): pid=11851 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 80.498842][ T31] audit: type=1800 audit(1567790245.546:27): pid=11851 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 '10.128.10.28' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 110.133118][ T17] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 110.373153][ T17] usb 1-1: Using ep0 maxpacket: 32 [ 110.493275][ T17] usb 1-1: config 0 has an invalid interface number: 31 but max is 0 [ 110.501484][ T17] usb 1-1: config 0 has no interface number 0 [ 110.507749][ T17] usb 1-1: New USB device found, idVendor=9022, idProduct=d421, bcdDevice=c1.e6 [ 110.517094][ T17] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 110.526508][ T17] usb 1-1: config 0 descriptor?? executing program [ 110.803523][ T17] usb 1-1: string descriptor 0 read error: -71 [ 110.813467][ T17] dw2102: su3000_identify_state [ 110.818380][ T17] dvb-usb: found a 'TeVii S421 PCI' in warm state. [ 110.825320][ T17] dw2102: su3000_power_ctrl: 1, initialized 0 [ 110.831450][ T17] dvb-usb: bulk message failed: -22 (2/-30591) [ 110.841368][ T17] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. [ 110.863754][ T17] dvbdev: DVB: registering new adapter (TeVii S421 PCI) [ 110.870762][ T17] usb 1-1: media controller created [ 110.876101][ T17] dvb-usb: bulk message failed: -22 (6/0) [ 110.881837][ T17] dw2102: i2c transfer failed. [ 110.886712][ T17] dvb-usb: bulk message failed: -22 (6/0) [ 110.892463][ T17] dw2102: i2c transfer failed. [ 110.897362][ T17] dvb-usb: bulk message failed: -22 (6/0) [ 110.903147][ T17] dw2102: i2c transfer failed. [ 110.907929][ T17] dvb-usb: bulk message failed: -22 (6/0) [ 110.913727][ T17] dw2102: i2c transfer failed. [ 110.918521][ T17] dvb-usb: bulk message failed: -22 (6/0) [ 110.924322][ T17] dw2102: i2c transfer failed. [ 110.929160][ T17] dvb-usb: bulk message failed: -22 (6/0) [ 110.935071][ T17] dw2102: i2c transfer failed. [ 110.939965][ T17] dvb-usb: MAC address: 02:02:02:02:02:02 [ 110.966340][ T17] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 110.990402][ T17] dvb-usb: bulk message failed: -22 (1/0) [ 110.996294][ T17] dw2102: command 0x51 transfer failed. [ 111.003904][ T17] dvb-usb: bulk message failed: -22 (5/0) [ 111.009694][ T17] dw2102: i2c transfer failed. [ 111.014631][ T17] dvb-usb: bulk message failed: -22 (5/0) [ 111.020376][ T17] dw2102: i2c transfer failed. [ 111.025250][ T17] dvb-usb: bulk message failed: -22 (5/0) [ 111.030996][ T17] dw2102: i2c transfer failed. [ 111.035844][ T17] dvb-usb: bulk message failed: -22 (5/0) [ 111.041557][ T17] dw2102: i2c transfer failed. [ 111.046431][ T17] dvb-usb: bulk message failed: -22 (5/0) [ 111.052179][ T17] dw2102: i2c transfer failed. [ 111.057050][ T17] dvb-usb: bulk message failed: -22 (5/0) [ 111.062800][ T17] dw2102: i2c transfer failed. [ 111.070077][ T17] dvb-usb: bulk message failed: -22 (5/0) [ 111.075959][ T17] dw2102: i2c transfer failed. [ 111.080762][ T17] dvb-usb: bulk message failed: -22 (5/0) [ 111.086543][ T17] dw2102: i2c transfer failed. [ 111.091353][ T17] dvb-usb: bulk message failed: -22 (5/0) [ 111.097131][ T17] dw2102: i2c transfer failed. [ 111.101939][ T17] dvb-usb: bulk message failed: -22 (5/0) [ 111.107740][ T17] dw2102: i2c transfer failed. [ 111.112575][ T17] dvb-usb: bulk message failed: -22 (5/0) [ 111.118355][ T17] dw2102: i2c transfer failed. [ 111.123192][ T17] dvb-usb: bulk message failed: -22 (5/0) [ 111.128929][ T17] dw2102: i2c transfer failed. [ 111.133831][ T17] ts2020 0-0060: Montage Technology TS2020 successfully identified [ 111.142469][ T17] dw2102: Attached RS2000/TS2020! [ 111.147662][ T17] usb 1-1: DVB: registering adapter 0 frontend 0 (M88RS2000 DVB-S)... [ 111.156087][ T17] dvbdev: dvb_create_media_entity: media entity 'M88RS2000 DVB-S' registered. [ 111.213421][ T17] Registered IR keymap rc-su3000 [ 111.219128][ T17] rc rc0: TeVii S421 PCI as /devices/platform/dummy_hcd.0/usb1/1-1/rc/rc0 [ 111.229231][ T17] input: TeVii S421 PCI as /devices/platform/dummy_hcd.0/usb1/1-1/rc/rc0/input5 [ 111.240164][ T17] dvb-usb: schedule remote query interval to 150 msecs. [ 111.247261][ T17] dw2102: su3000_power_ctrl: 0, initialized 1 [ 111.253458][ T17] dvb-usb: TeVii S421 PCI successfully initialized and connected. [ 111.264326][ T17] usb 1-1: USB disconnect, device number 2 [ 111.270496][ T17] ================================================================== [ 111.278578][ T17] BUG: KMSAN: uninit-value in strscpy+0x33f/0x4c0 [ 111.284996][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.3.0-rc7+ #0 [ 111.292364][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 111.302433][ T17] Workqueue: usb_hub_wq hub_event [ 111.307445][ T17] Call Trace: [ 111.310726][ T17] dump_stack+0x191/0x1f0 [ 111.315052][ T17] kmsan_report+0x162/0x2d0 [ 111.319544][ T17] __msan_warning+0x75/0xe0 [ 111.324040][ T17] strscpy+0x33f/0x4c0 [ 111.328096][ T17] ? __msan_poison_alloca+0x1c0/0x270 [ 111.333468][ T17] dvb_usb_device_exit+0x1c8/0x270 [ 111.338575][ T17] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 111.344550][ T17] ? dw2102_disconnect+0x16f/0x2a0 [ 111.349668][ T17] dw2102_disconnect+0x256/0x2a0 [ 111.354689][ T17] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 111.360657][ T17] ? usb_disable_interface+0x497/0x4b0 [ 111.366231][ T17] ? dw2102_probe+0xce0/0xce0 [ 111.370897][ T17] usb_unbind_interface+0x3a2/0xdd0 [ 111.376096][ T17] ? usb_driver_release_interface+0x2a0/0x2a0 [ 111.382153][ T17] device_release_driver_internal+0x911/0xd20 [ 111.388211][ T17] device_release_driver+0x4b/0x60 [ 111.393313][ T17] bus_remove_device+0x4bf/0x670 [ 111.398239][ T17] device_del+0xcd5/0x1d10 [ 111.402668][ T17] usb_disable_device+0x567/0x1150 [ 111.407776][ T17] usb_disconnect+0x51e/0xd60 [ 111.412462][ T17] hub_event+0x3fd0/0x72f0 [ 111.416921][ T17] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 111.422904][ T17] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 111.428869][ T17] ? led_work+0x720/0x720 [ 111.433253][ T17] ? led_work+0x720/0x720 [ 111.437585][ T17] process_one_work+0x1572/0x1ef0 [ 111.442626][ T17] worker_thread+0x189c/0x2460 [ 111.447396][ T17] kthread+0x4b5/0x4f0 [ 111.451447][ T17] ? process_one_work+0x1ef0/0x1ef0 [ 111.456633][ T17] ? kthread_blkcg+0xf0/0xf0 [ 111.461209][ T17] ret_from_fork+0x35/0x40 [ 111.465633][ T17] [ 111.467942][ T17] Uninit was created at: [ 111.472168][ T17] kmsan_internal_poison_shadow+0x58/0xb0 [ 111.477869][ T17] kmsan_slab_free+0x8d/0x100 [ 111.482528][ T17] kfree+0x4c1/0x2db0 [ 111.486508][ T17] dw2102_probe+0xbd1/0xce0 [ 111.491000][ T17] usb_probe_interface+0xd19/0x1310 [ 111.496216][ T17] really_probe+0x1373/0x1dc0 [ 111.500875][ T17] driver_probe_device+0x1ba/0x510 [ 111.505983][ T17] __device_attach_driver+0x5b8/0x790 [ 111.511347][ T17] bus_for_each_drv+0x28e/0x3b0 [ 111.516177][ T17] __device_attach+0x489/0x750 [ 111.520923][ T17] device_initial_probe+0x4a/0x60 [ 111.525928][ T17] bus_probe_device+0x131/0x390 [ 111.530758][ T17] device_add+0x25b5/0x2df0 [ 111.535242][ T17] usb_set_configuration+0x309f/0x3710 [ 111.540679][ T17] generic_probe+0xe7/0x280 [ 111.545165][ T17] usb_probe_device+0x146/0x200 [ 111.549998][ T17] really_probe+0x1373/0x1dc0 [ 111.554700][ T17] driver_probe_device+0x1ba/0x510 [ 111.559810][ T17] __device_attach_driver+0x5b8/0x790 [ 111.565161][ T17] bus_for_each_drv+0x28e/0x3b0 [ 111.569993][ T17] __device_attach+0x489/0x750 [ 111.574750][ T17] device_initial_probe+0x4a/0x60 [ 111.579764][ T17] bus_probe_device+0x131/0x390 [ 111.584596][ T17] device_add+0x25b5/0x2df0 [ 111.589608][ T17] usb_new_device+0x23e5/0x2fb0 [ 111.594436][ T17] hub_event+0x581d/0x72f0 [ 111.598863][ T17] process_one_work+0x1572/0x1ef0 [ 111.603903][ T17] worker_thread+0x111b/0x2460 [ 111.608664][ T17] kthread+0x4b5/0x4f0 [ 111.612723][ T17] ret_from_fork+0x35/0x40 [ 111.617121][ T17] ================================================================== [ 111.625171][ T17] Disabling lock debugging due to kernel taint [ 111.631301][ T17] Kernel panic - not syncing: panic_on_warn set ... [ 111.637870][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Tainted: G B 5.3.0-rc7+ #0 [ 111.646622][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 111.656670][ T17] Workqueue: usb_hub_wq hub_event [ 111.661673][ T17] Call Trace: [ 111.664968][ T17] dump_stack+0x191/0x1f0 [ 111.669286][ T17] panic+0x3c9/0xc1e [ 111.673201][ T17] kmsan_report+0x2ca/0x2d0 [ 111.677728][ T17] __msan_warning+0x75/0xe0 [ 111.682217][ T17] strscpy+0x33f/0x4c0 [ 111.686268][ T17] ? __msan_poison_alloca+0x1c0/0x270 [ 111.691654][ T17] dvb_usb_device_exit+0x1c8/0x270 [ 111.696750][ T17] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 111.702734][ T17] ? dw2102_disconnect+0x16f/0x2a0 [ 111.707835][ T17] dw2102_disconnect+0x256/0x2a0 [ 111.712758][ T17] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 111.718720][ T17] ? usb_disable_interface+0x497/0x4b0 [ 111.724165][ T17] ? dw2102_probe+0xce0/0xce0 [ 111.728825][ T17] usb_unbind_interface+0x3a2/0xdd0 [ 111.734101][ T17] ? usb_driver_release_interface+0x2a0/0x2a0 [ 111.740172][ T17] device_release_driver_internal+0x911/0xd20 [ 111.746230][ T17] device_release_driver+0x4b/0x60 [ 111.751327][ T17] bus_remove_device+0x4bf/0x670 [ 111.756254][ T17] device_del+0xcd5/0x1d10 [ 111.760660][ T17] usb_disable_device+0x567/0x1150 [ 111.765768][ T17] usb_disconnect+0x51e/0xd60 [ 111.770442][ T17] hub_event+0x3fd0/0x72f0 [ 111.774861][ T17] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 111.780847][ T17] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 111.786827][ T17] ? led_work+0x720/0x720 [ 111.791139][ T17] ? led_work+0x720/0x720 [ 111.795469][ T17] process_one_work+0x1572/0x1ef0 [ 111.800503][ T17] worker_thread+0x189c/0x2460 [ 111.805278][ T17] kthread+0x4b5/0x4f0 [ 111.809329][ T17] ? process_one_work+0x1ef0/0x1ef0 [ 111.814515][ T17] ? kthread_blkcg+0xf0/0xf0 [ 111.819104][ T17] ret_from_fork+0x35/0x40 [ 111.824894][ T17] Kernel Offset: disabled [ 111.829220][ T17] Rebooting in 86400 seconds..