fix searchFilter double free (ITS#5043)

diff --git a/servers/slapd/overlays/rwmmap.c b/servers/slapd/overlays/rwmmap.c
index b88cc4a2af02d65c3ce241a028fd00546bcc2e6e..c1d3cafc95cdf95aee95b9dcd98366f3f02edc5d 100644 (file)
--- a/servers/slapd/overlays/rwmmap.c
+++ b/servers/slapd/overlays/rwmmap.c
@@ -768,7 +768,9 @@ rwm_filter_map_rewrite(
        case REWRITE_REGEXEC_OK:
                if ( !BER_BVISNULL( fstr ) ) {
                        fstr->bv_len = strlen( fstr->bv_val );
-                       ch_free( ftmp.bv_val );
+                       if ( fstr->bv_val != ftmp.bv_val ) {
+                               ch_free( ftmp.bv_val );
+                       }
 
                } else {
                        *fstr = ftmp;