Fix incorrect memory free order in prot_shrink_to_fit_small, fixing a…

… potential memory leak
boostorg · Jun 2, 2024 · dad179d · dad179d
1 parent c7702d2
commit dad179d
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/include/boost/container/vector.hpp b/include/boost/container/vector.hpp
@@ -2891,11 +2891,11 @@ class vector
                );
             boost::container::destroy_alloc_n(this->get_stored_allocator(), oldbuf, sz);
 
-            this->m_holder.m_start = small_buffer;
-            this->m_holder.set_stored_capacity(small_capacity);
-
             if (BOOST_LIKELY(!!this->m_holder.m_start))
                this->m_holder.deallocate(this->m_holder.m_start, cp);
+
+            this->m_holder.m_start = small_buffer;
+            this->m_holder.set_stored_capacity(small_capacity);
          }
          else if (sz < cp) {
             this->priv_move_to_new_buffer(sz, alloc_version());