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-rw-r--r--source4/dsdb/samdb/ldb_modules/objectclass.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/objectclass.c b/source4/dsdb/samdb/ldb_modules/objectclass.c
index b6f1a1aa23..b5e058df0b 100644
--- a/source4/dsdb/samdb/ldb_modules/objectclass.c
+++ b/source4/dsdb/samdb/ldb_modules/objectclass.c
@@ -706,7 +706,13 @@ static int objectclass_modify(struct ldb_module *module, struct ldb_request *req
if (!schema) {
return ldb_next_request(module, req);
}
- objectclass_element = ldb_msg_find_element(req->op.mod.message, "objectClass");
+
+ /* As with the "real" AD we don't accept empty messages */
+ if (req->op.mod.message->num_elements == 0) {
+ ldb_set_errstring(ldb, "objectclass: modify message must have "
+ "elements/attributes!");
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
ac = oc_init_context(module, req);
if (ac == NULL) {
@@ -715,6 +721,7 @@ static int objectclass_modify(struct ldb_module *module, struct ldb_request *req
/* If no part of this touches the objectClass, then we don't
* need to make any changes. */
+ objectclass_element = ldb_msg_find_element(req->op.mod.message, "objectClass");
/* If the only operation is the deletion of the objectClass
* then go on with just fixing the attribute case */