Fix out-of-bound vector access in

`HierarchicalClusteringIndex::copyTree`
flann-lib · Jun 29, 2020 · f9b25ab · f9b25ab
1 parent 802bddb
commit f9b25ab
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/cpp/flann/algorithms/hierarchical_clustering_index.h b/src/cpp/flann/algorithms/hierarchical_clustering_index.h
@@ -444,7 +444,7 @@ class HierarchicalClusteringIndex : public NNIndex<Distance>
     {
     	dst = new(pool_) Node();
     	dst->pivot_index = src->pivot_index;
-    	dst->pivot = points_[dst->pivot_index];
+    	dst->pivot = dst->pivot_index == SIZE_MAX ? NULL : points_[dst->pivot_index];
 
     	if (src->childs.size()==0) {
     		dst->points = src->points;