From a43cc4b7e7dfa51b4f1c163f3bf29cd785047bd1 Mon Sep 17 00:00:00 2001
From: Tim Blechmann <tim@klingt.org>
Date: Wed, 27 May 2026 21:49:01 +0800
Subject: [PATCH] binomial_heap: fix stack-buffer-overflow in
 merge_and_clear_nodes when this_iterator reaches end()

---
 include/boost/heap/binomial_heap.hpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/boost/heap/binomial_heap.hpp b/include/boost/heap/binomial_heap.hpp
index a72b342..e8b2828 100644
--- a/include/boost/heap/binomial_heap.hpp
+++ b/include/boost/heap/binomial_heap.hpp
@@ -686,6 +686,8 @@ try_again:
                     } else {
                         this_iterator = trees.erase( this_iterator );
                         carry_node    = merge_trees( this_node, carry_node );
+                        if ( this_iterator == trees.end() )
+                            break;
                     }
                     goto try_again;
                 } else {