It was a fresh install apart from home and hadn't touched anything manually. I suspect that sudo is taking my users permission umask and applies it when dkms/dpkg unpacks the headers.
-- DKMS privilege de-escalation breaks compilation https://bugs.launchpad.net/bugs/454577 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