[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 88.144821][ T32] audit: type=1800 audit(1567939894.192:25): pid=12817 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 88.167743][ T32] audit: type=1800 audit(1567939894.222:26): pid=12817 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 88.193036][ T32] audit: type=1800 audit(1567939894.242:27): pid=12817 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 '10.128.0.42' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 117.861960][ T31] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 118.101948][ T31] usb 1-1: Using ep0 maxpacket: 8 [ 118.222076][ T31] usb 1-1: config 0 has an invalid interface number: 80 but max is 0 [ 118.230241][ T31] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 118.240470][ T31] usb 1-1: config 0 has no interface number 0 [ 118.246671][ T31] usb 1-1: config 0 interface 80 altsetting 0 endpoint 0x8B has an invalid bInterval 0, changing to 7 [ 118.257881][ T31] usb 1-1: New USB device found, idVendor=9022, idProduct=d632, bcdDevice=a1.53 [ 118.267021][ T31] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 118.276476][ T31] usb 1-1: config 0 descriptor?? [ 118.316071][ T31] dw2102: su3000_identify_state [ 118.321002][ T31] dvb-usb: found a 'TeVii S632 USB' in warm state. [ 118.327737][ T31] dw2102: su3000_power_ctrl: 1, initialized 0 [ 118.333905][ T31] dvb-usb: bulk message failed: -22 (2/-30591) [ 118.343340][ T31] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. [ 118.372683][ T31] dvbdev: DVB: registering new adapter (TeVii S632 USB) [ 118.379695][ T31] usb 1-1: media controller created [ 118.385020][ T31] dvb-usb: bulk message failed: -22 (6/0) [ 118.390770][ T31] dw2102: i2c transfer failed. [ 118.395671][ T31] dvb-usb: bulk message failed: -22 (6/0) [ 118.401427][ T31] dw2102: i2c transfer failed. [ 118.406271][ T31] dvb-usb: bulk message failed: -22 (6/0) [ 118.412034][ T31] dw2102: i2c transfer failed. [ 118.416809][ T31] dvb-usb: bulk message failed: -22 (6/0) [ 118.422579][ T31] dw2102: i2c transfer failed. [ 118.427373][ T31] dvb-usb: bulk message failed: -22 (6/0) [ 118.433155][ T31] dw2102: i2c transfer failed. [ 118.437945][ T31] dvb-usb: bulk message failed: -22 (6/0) [ 118.443729][ T31] dw2102: i2c transfer failed. [ 118.448510][ T31] dvb-usb: MAC address: 02:02:02:02:02:02 [ 118.474301][ T31] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 118.500987][ T31] dvb-usb: bulk message failed: -22 (1/0) [ 118.507200][ T31] dw2102: command 0x51 transfer failed. [ 118.515208][ T31] dvb-usb: bulk message failed: -22 (5/0) executing program [ 118.520971][ T31] dw2102: i2c transfer failed. [ 118.525872][ T31] dvb-usb: bulk message failed: -22 (5/0) [ 118.531599][ T31] dw2102: i2c transfer failed. [ 118.536464][ T31] dvb-usb: bulk message failed: -22 (5/0) [ 118.542248][ T31] dw2102: i2c transfer failed. [ 118.547102][ T31] dvb-usb: bulk message failed: -22 (5/0) [ 118.552919][ T31] dw2102: i2c transfer failed. [ 118.557786][ T31] dvb-usb: bulk message failed: -22 (5/0) [ 118.563592][ T31] dw2102: i2c transfer failed. [ 118.568404][ T31] dvb-usb: bulk message failed: -22 (5/0) [ 118.574234][ T31] dw2102: i2c transfer failed. [ 118.622341][ T31] dvb-usb: bulk message failed: -22 (5/0) [ 118.628149][ T31] dw2102: i2c transfer failed. [ 118.633476][ T31] dvb-usb: bulk message failed: -22 (5/0) [ 118.639206][ T31] dw2102: i2c transfer failed. [ 118.644150][ T31] dvb-usb: bulk message failed: -22 (5/0) [ 118.649911][ T31] dw2102: i2c transfer failed. [ 118.654786][ T31] dvb-usb: bulk message failed: -22 (5/0) [ 118.660531][ T31] dw2102: i2c transfer failed. [ 118.665450][ T31] dvb-usb: bulk message failed: -22 (5/0) [ 118.671718][ T31] dw2102: i2c transfer failed. [ 118.676730][ T31] dvb-usb: bulk message failed: -22 (5/0) [ 118.682500][ T31] dw2102: i2c transfer failed. [ 118.687299][ T31] ts2020 0-0060: Montage Technology TS2020 successfully identified [ 118.696058][ T31] dw2102: Attached RS2000/TS2020! [ 118.701162][ T31] usb 1-1: DVB: registering adapter 0 frontend 0 (M88RS2000 DVB-S)... [ 118.709469][ T31] dvbdev: dvb_create_media_entity: media entity 'M88RS2000 DVB-S' registered. [ 118.772360][ T31] Registered IR keymap rc-su3000 [ 118.778242][ T31] rc rc0: TeVii S632 USB as /devices/platform/dummy_hcd.0/usb1/1-1/rc/rc0 [ 118.788176][ T31] input: TeVii S632 USB as /devices/platform/dummy_hcd.0/usb1/1-1/rc/rc0/input5 [ 118.799073][ T31] dvb-usb: schedule remote query interval to 150 msecs. [ 118.806225][ T31] dw2102: su3000_power_ctrl: 0, initialized 1 [ 118.812365][ T31] dvb-usb: TeVii S632 USB successfully initialized and connected. [ 118.823652][ T31] usb 1-1: USB disconnect, device number 2 [ 118.830099][ T31] ================================================================== [ 118.838204][ T31] BUG: KMSAN: uninit-value in strscpy+0x33f/0x4c0 [ 118.844629][ T31] CPU: 1 PID: 31 Comm: kworker/1:1 Not tainted 5.3.0-rc7+ #0 [ 118.851997][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 118.862070][ T31] Workqueue: usb_hub_wq hub_event [ 118.867108][ T31] Call Trace: [ 118.870386][ T31] dump_stack+0x191/0x1f0 [ 118.874706][ T31] kmsan_report+0x162/0x2d0 [ 118.879194][ T31] __msan_warning+0x75/0xe0 [ 118.883679][ T31] strscpy+0x33f/0x4c0 [ 118.887795][ T31] ? __msan_poison_alloca+0x1c0/0x270 [ 118.893179][ T31] dvb_usb_device_exit+0x1c8/0x270 [ 118.898279][ T31] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 118.904246][ T31] ? dw2102_disconnect+0x16f/0x2a0 [ 118.909345][ T31] dw2102_disconnect+0x256/0x2a0 [ 118.914266][ T31] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 118.920227][ T31] ? usb_disable_interface+0x467/0x4b0 [ 118.925669][ T31] ? dw2102_probe+0xce0/0xce0 [ 118.930374][ T31] usb_unbind_interface+0x3a2/0xdd0 [ 118.935575][ T31] ? usb_driver_release_interface+0x2a0/0x2a0 [ 118.941747][ T31] device_release_driver_internal+0x911/0xd20 [ 118.947817][ T31] device_release_driver+0x4b/0x60 [ 118.952924][ T31] bus_remove_device+0x4bf/0x670 [ 118.957850][ T31] device_del+0xcd5/0x1d10 [ 118.962262][ T31] usb_disable_device+0x567/0x1150 [ 118.967365][ T31] usb_disconnect+0x51e/0xd60 [ 118.972040][ T31] hub_event+0x3fd0/0x72f0 [ 118.976459][ T31] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 118.982435][ T31] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 118.988399][ T31] ? led_work+0x720/0x720 [ 118.992736][ T31] ? led_work+0x720/0x720 [ 118.997051][ T31] process_one_work+0x1572/0x1ef0 [ 119.002075][ T31] worker_thread+0x189c/0x2460 [ 119.007024][ T31] kthread+0x4b5/0x4f0 [ 119.011089][ T31] ? process_one_work+0x1ef0/0x1ef0 [ 119.016275][ T31] ? kthread_blkcg+0xf0/0xf0 [ 119.020848][ T31] ret_from_fork+0x35/0x40 [ 119.025263][ T31] [ 119.027576][ T31] Uninit was created at: [ 119.031820][ T31] kmsan_internal_poison_shadow+0x58/0xb0 [ 119.037529][ T31] kmsan_slab_free+0x8d/0x100 [ 119.042237][ T31] kfree+0x4c1/0x2db0 [ 119.046199][ T31] dw2102_probe+0xbd1/0xce0 [ 119.050683][ T31] usb_probe_interface+0xd19/0x1310 [ 119.055862][ T31] really_probe+0x1373/0x1dc0 [ 119.060526][ T31] driver_probe_device+0x1ba/0x510 [ 119.065624][ T31] __device_attach_driver+0x5b8/0x790 [ 119.070977][ T31] bus_for_each_drv+0x28e/0x3b0 [ 119.075815][ T31] __device_attach+0x489/0x750 [ 119.080573][ T31] device_initial_probe+0x4a/0x60 [ 119.085592][ T31] bus_probe_device+0x131/0x390 [ 119.090423][ T31] device_add+0x25b5/0x2df0 [ 119.094908][ T31] usb_set_configuration+0x309f/0x3710 [ 119.100430][ T31] generic_probe+0xe7/0x280 [ 119.104909][ T31] usb_probe_device+0x146/0x200 [ 119.109750][ T31] really_probe+0x1373/0x1dc0 [ 119.114493][ T31] driver_probe_device+0x1ba/0x510 [ 119.119593][ T31] __device_attach_driver+0x5b8/0x790 [ 119.124943][ T31] bus_for_each_drv+0x28e/0x3b0 [ 119.129771][ T31] __device_attach+0x489/0x750 [ 119.134527][ T31] device_initial_probe+0x4a/0x60 [ 119.139542][ T31] bus_probe_device+0x131/0x390 [ 119.144374][ T31] device_add+0x25b5/0x2df0 [ 119.148908][ T31] usb_new_device+0x23e5/0x2fb0 [ 119.153739][ T31] hub_event+0x581d/0x72f0 [ 119.158138][ T31] process_one_work+0x1572/0x1ef0 [ 119.163145][ T31] worker_thread+0x111b/0x2460 [ 119.167886][ T31] kthread+0x4b5/0x4f0 [ 119.171936][ T31] ret_from_fork+0x35/0x40 [ 119.176324][ T31] ================================================================== [ 119.184362][ T31] Disabling lock debugging due to kernel taint [ 119.191018][ T31] Kernel panic - not syncing: panic_on_warn set ... [ 119.197588][ T31] CPU: 1 PID: 31 Comm: kworker/1:1 Tainted: G B 5.3.0-rc7+ #0 [ 119.206326][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.216392][ T31] Workqueue: usb_hub_wq hub_event [ 119.221410][ T31] Call Trace: [ 119.224690][ T31] dump_stack+0x191/0x1f0 [ 119.229020][ T31] panic+0x3c9/0xc1e [ 119.232939][ T31] kmsan_report+0x2ca/0x2d0 [ 119.237426][ T31] __msan_warning+0x75/0xe0 [ 119.241924][ T31] strscpy+0x33f/0x4c0 [ 119.245984][ T31] ? __msan_poison_alloca+0x1c0/0x270 [ 119.251354][ T31] dvb_usb_device_exit+0x1c8/0x270 [ 119.256455][ T31] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 119.262445][ T31] ? dw2102_disconnect+0x16f/0x2a0 [ 119.267539][ T31] dw2102_disconnect+0x256/0x2a0 [ 119.272468][ T31] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 119.278439][ T31] ? usb_disable_interface+0x467/0x4b0 [ 119.284144][ T31] ? dw2102_probe+0xce0/0xce0 [ 119.288824][ T31] usb_unbind_interface+0x3a2/0xdd0 [ 119.294019][ T31] ? usb_driver_release_interface+0x2a0/0x2a0 [ 119.300079][ T31] device_release_driver_internal+0x911/0xd20 [ 119.306148][ T31] device_release_driver+0x4b/0x60 [ 119.311248][ T31] bus_remove_device+0x4bf/0x670 [ 119.316216][ T31] device_del+0xcd5/0x1d10 [ 119.320628][ T31] usb_disable_device+0x567/0x1150 [ 119.325732][ T31] usb_disconnect+0x51e/0xd60 [ 119.330406][ T31] hub_event+0x3fd0/0x72f0 [ 119.334837][ T31] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 119.340851][ T31] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 119.346815][ T31] ? led_work+0x720/0x720 [ 119.351127][ T31] ? led_work+0x720/0x720 [ 119.355441][ T31] process_one_work+0x1572/0x1ef0 [ 119.360462][ T31] worker_thread+0x189c/0x2460 [ 119.365251][ T31] kthread+0x4b5/0x4f0 [ 119.369309][ T31] ? process_one_work+0x1ef0/0x1ef0 [ 119.374489][ T31] ? kthread_blkcg+0xf0/0xf0 [ 119.379062][ T31] ret_from_fork+0x35/0x40 [ 119.384237][ T31] Kernel Offset: disabled [ 119.388562][ T31] Rebooting in 86400 seconds..