Named 9.3.3 triggers stack smashing attack

I just upgraded to Named 9.3.3 via SWUP on two servers and now neither of
them will start. I get this in the logs:

Dec 28 23:12:34 home named[5114]: command channel listening on 127.0.0.1#953
Dec 28 23:12:34 home named[5114]: command channel listening on ::1#953
Dec 28 23:12:35 home named: named startup succeeded
Dec 28 23:12:43 home named: stack smashing attack in function query_find

I haven't seen any other reports of this in Google or this list, so anyone
have any thoughts? In the interim I'm trying to figure out how to downgrade
to an earlier version of BIND -- or was it some other upgrade through SWUP
that now is making named trigger these warnings? Any way I can 'allow' named
to avoid this protection to see if it really is 'stack smashing' or if its a
false positive?

Thanks.