- fix potential crash in ModelNode_getChild when an array element field is accessed without using the array index specifier (LIB61850-408)

src/iec61850/server/model/model.c

@@ -710,7 +710,6 @@ ModelNode_getChild(ModelNode* self, const char* name)
             }
             else
                 return NULL;
-
         }
         else {
             /* invalid name */
@@ -731,6 +730,11 @@ ModelNode_getChild(ModelNode* self, const char* name)
     ModelNode* matchingNode = NULL;
 
     while (nextNode) {
+
+        if (nextNode->name == NULL) {
+            break; /* is an array element */        
+        }
+
         int nodeNameLen = strlen(nextNode->name);
 
         if (nodeNameLen == nameElementLength) {