Author: truckman
Date: Wed May 25 00:25:38 2016
New Revision: 300636
URL: https://svnweb.freebsd.org/changeset/base/300636

Log:
  Delay calling yp_malloc_dnsent() until after some additional sanity
  checks to avoid leaking memory on error returns.
  
  Reported by:  Coverity
  CID:          1007416
  MFC after:    1 week

Modified:
  head/usr.sbin/ypserv/yp_dnslookup.c

Modified: head/usr.sbin/ypserv/yp_dnslookup.c
==============================================================================
--- head/usr.sbin/ypserv/yp_dnslookup.c Wed May 25 00:16:52 2016        
(r300635)
+++ head/usr.sbin/ypserv/yp_dnslookup.c Wed May 25 00:25:38 2016        
(r300636)
@@ -489,9 +489,6 @@ yp_async_lookup_addr(struct svc_req *rqs
            yp_find_dnsqent(svcudp_get_xid(rqstp->rq_xprt),BY_RPC_XID) != NULL)
                return(YP_TRUE);
 
-       if ((q = yp_malloc_dnsent()) == NULL)
-               return(YP_YPERR);
-
        switch (af) {
        case AF_INET:
                if (inet_aton(addr, (struct in_addr *)uaddr) != 1)
@@ -516,6 +513,9 @@ yp_async_lookup_addr(struct svc_req *rqs
                return(YP_YPERR);
        }
 
+       if ((q = yp_malloc_dnsent()) == NULL)
+               return(YP_YPERR);
+
        if (debug)
                yp_error("DNS address is: %s", buf);
 
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