File boost-pool_check_overflow.patch of Package boost

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File boost-pool_check_overflow.patch of Package boost (Revision dce21f69ca4f4a45372b311ef7776a61)

Currently displaying revision dce21f69ca4f4a45372b311ef7776a61 , Show latest

Upstream URL: https://svn.boost.org/trac/boost/ticket/6701

Check that request size doesn't overflow.

Index: boost/pool/pool.hpp
===================================================================
--- boost/pool/pool.hpp.orig
+++ boost/pool/pool.hpp
@@ -10,6 +10,8 @@
 #define BOOST_POOL_HPP
 
 #include <boost/config.hpp>  // for workarounds
+// std::numeric_limits
+#include <boost/limits.hpp>
 
 // std::less, std::less_equal, std::greater
 #include <functional>
@@ -806,6 +808,9 @@ void * pool<UserAllocator>::ordered_mall
   if (n > max_chunks())
     return 0;
 
+  if (requested_size && (n > (std::numeric_limits<size_type>::max)() / requested_size))
+    return 0;
+
   const size_type partition_size = alloc_size();
   const size_type total_req_size = n * requested_size;
   const size_type num_chunks = total_req_size / partition_size +
@@ -988,6 +993,8 @@ public:
   {
      if(max_alloc_size && (n > max_alloc_size))
         return 0;
+     if(chunk_size && (n > (std::numeric_limits<size_type>::max)() / chunk_size))
+        return 0;
      void* ret = (user_allocator::malloc)(chunk_size * n);
      used_list.insert(ret);
      return ret;

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File boost-pool_check_overflow.patch of Package boost (Revision dce21f69ca4f4a45372b311ef7776a61)

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