[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 77.758794][ T30] audit: type=1800 audit(1562766900.809:25): pid=12035 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 77.791849][ T30] audit: type=1800 audit(1562766900.829:26): pid=12035 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 77.812040][ T30] audit: type=1800 audit(1562766900.839:27): pid=12035 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 '10.128.0.117' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 88.791831][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 89.031855][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 89.151923][ T12] usb 1-1: New USB device found, idVendor=7a69, idProduct=0001, bcdDevice=19.36 [ 89.160986][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 89.170549][ T12] usb 1-1: config 0 descriptor?? [ 89.215497][ T12] usb 1-1: dvb_usb_v2: found a '774 Friio White ISDB-T USB2.0' in warm state [ 90.012011][ T12] ================================================================== [ 90.020129][ T12] BUG: KMSAN: uninit-value in friio_power_ctrl+0xb3e/0x1a70 [ 90.027397][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.2.0-rc4+ #12 [ 90.034827][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.045060][ T12] Workqueue: usb_hub_wq hub_event [ 90.050182][ T12] Call Trace: [ 90.053459][ T12] dump_stack+0x191/0x1f0 [ 90.057771][ T12] kmsan_report+0x162/0x2d0 [ 90.062277][ T12] __msan_warning+0x75/0xe0 [ 90.066763][ T12] friio_power_ctrl+0xb3e/0x1a70 [ 90.071694][ T12] ? gl861_i2c_msg+0x6e0/0x6e0 [ 90.076467][ T12] dvb_usbv2_probe+0xd3d/0x5dd0 [ 90.081498][ T12] ? technisat_usb2_i2c_access+0x12a0/0x12a0 [ 90.087468][ T12] ? technisat_usb2_i2c_access+0x12a0/0x12a0 [ 90.093542][ T12] usb_probe_interface+0xd19/0x1310 [ 90.098726][ T12] ? usb_register_driver+0x7d0/0x7d0 [ 90.103992][ T12] really_probe+0x1344/0x1d90 [ 90.108678][ T12] driver_probe_device+0x1ba/0x510 [ 90.113774][ T12] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 90.119662][ T12] __device_attach_driver+0x5b8/0x790 [ 90.125019][ T12] bus_for_each_drv+0x28e/0x3b0 [ 90.129861][ T12] ? deferred_probe_work_func+0x400/0x400 [ 90.135581][ T12] __device_attach+0x489/0x750 [ 90.140357][ T12] device_initial_probe+0x4a/0x60 [ 90.145362][ T12] bus_probe_device+0x131/0x390 [ 90.150212][ T12] device_add+0x25b5/0x2df0 [ 90.154708][ T12] usb_set_configuration+0x309f/0x3710 [ 90.160176][ T12] ? __ms