partial backport probably. RWLock and virdomain leak looks like the best candidates, health monitor might be a bit too risky for 3.5.z
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2016-0317.html