catch double free

diff --git a/servers/slapd/back-ldap/search.c b/servers/slapd/back-ldap/search.c
index c15f571e00255d52480b1f0aeb1778a3bc0ae76e..c7a20541665543a6ed945e288fde2b43b08900ea 100644 (file)
--- a/servers/slapd/back-ldap/search.c
+++ b/servers/slapd/back-ldap/search.c
@@ -152,6 +152,7 @@ ldap_back_search(
                        msgid; 
        struct berval   match = BER_BVNULL,
                        filter = BER_BVNULL;
+       int             free_filter = 0;
        int             i;
        char            **attrs = NULL;
        int             freetext = 0;
@@ -239,6 +240,7 @@ retry:
 
                case LDAP_FILTER_ERROR:
                        if ( ldap_back_munge_filter( op, &filter ) ) {
+                               free_filter = 1;
                                goto retry;
                        }
 
@@ -498,7 +500,7 @@ finish:;
                rs->sr_matched = save_matched;
        }
 
-       if ( !BER_BVISNULL( &filter ) && filter.bv_val != op->ors_filterstr.bv_val ) {
+       if ( free_filter ) {
                op->o_tmpfree( filter.bv_val, op->o_tmpmemctx );
        }