On Wed, Apr 4, 2018 at 4:45 PM, Eric W. Biederman <ebiederm@xxxxxxxxxxxx> wrote: [...] > > The only option I have seen proposed that might qualify as something > general purpose and simple is a new filesystem that is just the process > directories of proc. As there would in essence be no files that would > need restrictions it would be safe to allow anyone to mount without > restriction. > Eric, there is a series for this: https://www.mail-archive.com/linux-kernel@xxxxxxxxxxxxxxx/msg1533642.html patch on top for pids: https://github.com/legionus/linux/commit/993a2a5b9af95b0ac901ff41d32124b72ed676e3 it was reviewed, and suggestions were integrated from Andy and Al Viro feedback, thanks. It works on Debian, Ubuntu and others, not on Fedora due to bug with dracut+systemd. I do not have time to work on it now, anyone can just pick them. Thanks! -- tixxdz