s4:dlz_bind9: Copy dn before changing in b9_has_soa

Signed-off-by: Stefan Metzmacher <metze@samba.org>

diff --git a/source4/dns_server/dlz_bind9.c b/source4/dns_server/dlz_bind9.c
index 4105c1119e048233d18b1a2c862a49feda963d29..58b47ce566261f8aa064ab6a834c73f417d8fae7 100644 (file)
--- a/source4/dns_server/dlz_bind9.c
+++ b/source4/dns_server/dlz_bind9.c
@@ -1015,10 +1015,14 @@ _PUBLIC_ isc_result_t dlz_configure(dns_view_t *view, void *dbdata)
                for (j=0; j<res->count; j++) {
                        isc_result_t result;
                        const char *zone = ldb_msg_find_attr_as_string(res->msgs[j], "name", NULL);
+                       struct ldb_dn *zone_dn;
+
                        if (zone == NULL) {
                                continue;
                        }
-                       if (!b9_has_soa(state, dn, zone)) {
+                       zone_dn = ldb_dn_copy(tmp_ctx, dn);
+
+                       if (!b9_has_soa(state, zone_dn, zone)) {
                                continue;
                        }
                        result = state->writeable_zone(view, zone);