[RFC] fs, proc: Introduce the /proc/<pid>/map_files/ directory v2
gorcunov at gmail.com
Thu Aug 25 07:30:04 PDT 2011
On Thu, Aug 25, 2011 at 04:04:35PM +0200, Andi Kleen wrote:
> > >
> > > For example if I pass a file descriptor into a chroot process for
> > > reading, and with this interface you can open it for writing too.
> > > I could see this causing problems.
> > How does it differ from the /proc/pid/fd links?
> Those cannot be opened I thought.
We have ptrace_may_access in lookup so I don't think you'll be
able to open it from another namespace or/and if you have not
enough credentials to.
More information about the Containers