[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 107.741143][ T30] audit: type=1800 audit(1564466581.781:25): pid=12536 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 107.765735][ T30] audit: type=1800 audit(1564466581.811:26): pid=12536 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 107.807241][ T30] audit: type=1800 audit(1564466581.841:27): pid=12536 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 '10.128.0.171' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 120.952646][ T17] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 121.192590][ T17] usb 1-1: Using ep0 maxpacket: 8 [ 121.313157][ T17] usb 1-1: config 0 has an invalid interface number: 128 but max is 0 [ 121.321421][ T17] usb 1-1: config 0 has no interface number 0 [ 121.327878][ T17] usb 1-1: config 0 interface 128 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 121.338010][ T17] usb 1-1: config 0 interface 128 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 121.348154][ T17] usb 1-1: New USB device found, idVendor=0424, idProduct=9908, bcdDevice=6a.5e [ 121.357324][ T17] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 121.367278][ T17] usb 1-1: config 0 descriptor?? [ 121.415343][ T17] smsc95xx v1.0.6 [ 121.852783][ T17] ================================================================== [ 121.860974][ T17] BUG: KMSAN: uninit-value in smsc95xx_read_eeprom+0x203/0x920 [ 121.868623][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.2.0+ #15 [ 121.875718][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 121.886010][ T17] Workqueue: usb_hub_wq hub_event [ 121.891056][ T17] Call Trace: [ 121.894383][ T17] dump_stack+0x191/0x1f0 [ 121.898749][ T17] kmsan_report+0x162/0x2d0 [ 121.903263][ T17] __msan_warning+0x75/0xe0 [ 121.907797][ T17] smsc95xx_read_eeprom+0x203/0x920 [ 121.913038][ T17] smsc95xx_bind+0x467/0x1690 [ 121.917722][ T17] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 121.923625][ T17] ? smsc95xx_mdio_write+0xc10/0xc10 [ 121.928931][ T17] usbnet_probe+0x10d3/0x3950 [ 121.933617][ T17] ? kmsan_internal_memset_shadow+0x104/0x3a0 [ 121.939763][ T17] ? usbnet_disconnect+0x660/0x660 [ 121.944882][ T17] usb_probe_interface+0xd19/0x1310 [ 121.957208][ T17] ? usb_register_driver+0x7d0/0x7d0 [ 121.962529][ T17] really_probe+0x1344/0x1d90 [ 121.967239][ T17] driver_probe_device+0x1ba/0x510 [ 121.972366][ T17] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 121.978288][ T17] __device_attach_driver+0x5b8/0x790 [ 121.983682][ T17] bus_for_each_drv+0x28e/0x3b0 [ 121.988540][ T17] ? deferred_probe_work_func+0x400/0x400 [ 121.994274][ T17] __device_attach+0x489/0x750 [ 121.999055][ T17] device_initial_probe+0x4a/0x60 [ 122.004086][ T17] bus_probe_device+0x131/0x390 [ 122.008946][ T17] device_add+0x25b5/0x2df0 [ 122.013478][ T17] usb_set_configuration+0x309f/0x3710 [ 122.019003][ T17] generic_probe+0xe7/0x280 [ 122.023514][ T17] ? usb_choose_configuration+0xae0/0xae0 [ 122.029236][ T17] usb_probe_device+0x146/0x200 [ 122.034132][ T17] ? usb_register_device_driver+0x470/0x470 [ 122.040045][ T17] really_probe+0x1344/0x1d90 [ 122.044738][ T17] driver_probe_device+0x1ba/0x510 [ 122.049954][ T17] ? kmsan_get_shadow_origin_ptr+0x71/0x47