Comment 49 for bug 1574300

In 18.04 vboxdrv still taints the kernel:

May 26 12:23:53 cerberus virtualbox[3244]: * Loading VirtualBox kernel modules...
May 26 12:23:53 cerberus kernel: vboxdrv: loading out-of-tree module taints kernel.
May 26 12:23:53 cerberus kernel: vboxdrv: module verification failed: signature and/or required key missing - tainting kernel
May 26 12:23:53 cerberus kernel: vboxdrv: Found 72 processor cores

jlquinn@cerberus:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.4 LTS
Release: 18.04
Codename: bionic
jlquinn@cerberus:~$ dpkg -l virtualbox
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==========================================-==========================-==========================-=========================================================================================
ii virtualbox 5.2.34-dfsg-0~ubuntu18.04. amd64 x86 virtualization solution - base binaries