Someone with c and/or IPv6 experience: Please review my small change to portmap.c. If you find it OK, then please consider incorporating the changes in Fedora, for security reasons.
You should enter this as a new "bug" (RFE). I don't see anything similar in bugzilla yet:
<https://bugzilla.redhat.com/bugzilla/buglist.cgi?component=portmap>
