On Fri, Apr 22, 2016 at 12:26:33PM -0500, serge.hal...@ubuntu.com wrote: > From: Serge Hallyn <serge.hal...@ubuntu.com> > > This can only be set by root in his own namespace, and will > only be respected by namespaces with that same root kuid > mapped as root, or namespaces descended from it. > > This allows a simple setxattr to work, allows tar/untar to > work, and allows us to tar in one namespace and untar in > another while preserving the capability, without risking > leaking privilege into a parent namespace. > > Signed-off-by: Serge Hallyn <serge.hal...@ubuntu.com>
Seems like the simplest possible design which meets the requirements. Acked-by: Seth Forshee <seth.fors...@canonical.com>
