fix filter structure leak (ITS#4794)

CHANGES

@@ -3,6 +3,7 @@ OpenLDAP 2.3 Change Log
 OpenLDAP 2.3.32 Engineering
 	Fixed slapd ACL set memleak (ITS#4780)
 	Fixed slapd syncrepl shutdown hang (ITS#4790)
+	Fixed slapd values return filter control leak (ITS#4794)
 	Fixed slapd-sql Debug typo (ITS#4784)
 
 OpenLDAP 2.3.31 Release

servers/slapd/controls.c

@@ -1254,6 +1254,8 @@ static int parseValuesReturnFilter (
 	rs->sr_err = get_vrFilter( op, ber,
 		(ValuesReturnFilter **)&(op->o_vrFilter), &rs->sr_text);
 
+	(void) ber_free( ber, 1 );
+
 	if( rs->sr_err != LDAP_SUCCESS ) {
 		if( rs->sr_err == SLAPD_DISCONNECT ) {
 			rs->sr_err = LDAP_PROTOCOL_ERROR;

servers/slapd/filter.c

@@ -978,7 +978,7 @@ get_simple_vrFilter(
 	}
 
 	if ( err == LDAP_SUCCESS ) {
-		*filt = ch_malloc( sizeof vrf );
+		*filt = op->o_tmpalloc( sizeof vrf, op->o_tmpmemctx );
 		**filt = vrf;
 	}