After a recent opensuse tumbleweed system update, virtualbox stopped running my virtual machines. I see error:
The virtual machine 'OpenSuse 13.1' has terminated unexpectedly during startup with exit code 1 (0x1).

Result Code:
NS_ERROR_FAILURE (0x80004005)
Component:
MachineWrap
Interface:
IMachine {85cd948e-a71f-4289-281e-0ca7ad48cd89}

In yast when trying to update virtualbox-host-kmp:
nothing provides kernel-uname-r=4.18.14.1-default needed by virtualbox-host-kmp-default-5.2.18-k4.18.14_1-1.9.x86_64
My current kernel version is 4.18.15-1-default

Should I just wait for the virtualbox repository to get updated or is there a workaround to fix the mismatch?

Virtualbox remakes it's modules on every boot by default unless you stop it.

If you have kernel 4.18.15-1, you should be able to install the source from your distro. If yopu still have the 4.18.14 kernel, why not boot that when you want virtualbox?

It references Modules.symvers in the kernel directory, so you might need to copy in the config and run 'make.' I did. But I am far from being an authority on virtualbox. Plenty of documentation exists, as a google will show.

I compiled a new virtualbox-host-kmp-default.

su
zypper in virtualbox-host-source kernel-devel
systemctl stop vboxdrv
vboxconfig

Reboot and virtualbox runs.

Thanks for the clues.