virtualbox fails after kernel update
Solution 1:
Based on a discussion on Ubuntu Forums, the following worked for me when I upgraded kernel in Ubuntu:
$ sudo dpkg-reconfigure virtualbox-dkms && sudo dpkg-reconfigure virtualbox && \
sudo modprobe vboxdrv
Solution 2:
On Fedora, I've been doing a /usr/sbin/vboxconfig after kernel updates, it seems to do a good job of rebuilding the kernel drivers after kernel updates.