It seems the backported DRM affects VirtualBox. The upstream bug watch points to a changeset that can be applied after installing the additions, (and before restarting the system), by running 'sudo service vboxadd setup'.
Does this need a freeze exception? Downgrading Linux to Low, setting new Ubuntu task against VBox, as Triaged/High. ** Changed in: linux (Ubuntu) Importance: High => Low ** Changed in: virtualbox-guest-additions (Ubuntu) Importance: Undecided => High ** Changed in: virtualbox-guest-additions (Ubuntu) Status: New => Triaged -- BUG: unable to handle kernel NULL pointer dereference at 0000000000000028 https://bugs.launchpad.net/bugs/535297 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs