Fix #14026: Only get the needed amount of objects

Author: tobiasge

netbox/ipam/api/views.py

@@ -266,6 +266,7 @@ def post(self, request, pk):
 
         # Normalize request data to a list of objects
         requested_objects = request.data if isinstance(request.data, list) else [request.data]
+        limit = len(requested_objects)
 
         # Serialize and validate the request data
         serializer = self.write_serializer_class(data=requested_objects, many=True, context={
@@ -279,7 +280,7 @@ def post(self, request, pk):
             )
 
         with advisory_lock(ADVISORY_LOCK_KEYS[self.advisory_lock_key]):
-            available_objects = self.get_available_objects(parent)
+            available_objects = self.get_available_objects(parent, limit)
 
             # Determine if the requested number of objects is available
             if not self.check_sufficient_available(serializer.validated_data, available_objects):