This looks like a regression in the kernel builtin module, nothing I can fix in virtualbox side. There have been breaking changes in newer 5.2+ virtualbox kernel modules, I suggest to avoid having them in 16.04, and to move to 18.04 if you want a newer codebase
** Changed in: virtualbox-hwe (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1783267 Title: linux-modules-extra breaks virtualbox guest modules To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1783267/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs