Disable -logfile and -modulepath when running with elevated privileges
Could cause privilege elevation and/or arbitrary files overwrite, when the X server is running with elevated privileges (ie when Xorg is installed with the setuid bit set and started by a non-root user). CVE-2018-14665 Issue reported by Narendra Shinde and Red Hat. Signed-off-by:Matthieu Herrb <matthieu@herrb.eu> Reviewed-by:
Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by:
Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by:
Adam Jackson <ajax@redhat.com> (cherry picked from commit 50c0cf88)