Index: lib/libc/rpc/auth_unix.c
===================================================================
--- lib/libc/rpc/auth_unix.c	(revision 234224)
+++ lib/libc/rpc/auth_unix.c	(working copy)
@@ -185,6 +185,7 @@
 AUTH *
 authunix_create_default()
 {
+	AUTH *auth;
 	int ngids;
 	long ngids_max;
 	char machname[MAXHOSTNAMELEN + 1];
@@ -207,8 +208,10 @@
 	if (ngids > NGRPS)
 		ngids = NGRPS;
 	/* XXX: interface problem; those should all have been unsigned */
-	return (authunix_create(machname, (int)uid, (int)gid, ngids,
-	    (int *)gids));
+	auth = authunix_create(machname, (int)uid, (int)gid, ngids,
+	    (int *)gids);
+	free(gids);
+	return (auth);
 }
 
 /*