There are some users have root access but they don't have read access to /proc/stat if not into root context which in this case for SELinux enforced devices and during the postinst step it will still check the file unprivileged
There are some users have root access but they don't have read access to /proc/stat if not into root context which in this case for SELinux enforced devices and during the postinst step it will still check the file unprivileged