Linux kernel maintainers pitch emergency killswitch after CopyFail and Dirty Frag chaos

Linux kernel maintainers are considering giving admins a giant red emergency button to smash the next time another nasty vulnerability drops before patches are ready. The proposed feature, named "Killswitch," would let admins temporarily disable specific vulnerable kernel functions at runtime instead of sitting around waiting for fixes. The so-called patch was submitted by Linux stable kernel co-maintainer and Nvidia engineer Sasha Levin after a bruising couple of weeks for Linux security.