From 8d7034c71cdb3ea1e946f57ca3b30e81b8a8b854 Mon Sep 17 00:00:00 2001
From: Marco Langer <langer.m86@gmail.com>
Date: Mon, 27 Jun 2022 22:59:52 +0200
Subject: [PATCH] fix: Memory leak in image class for empty dimensions (#649)

---
 include/boost/gil/image.hpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/boost/gil/image.hpp b/include/boost/gil/image.hpp
index d6a321bd1..e3f943a83 100644
--- a/include/boost/gil/image.hpp
+++ b/include/boost/gil/image.hpp
@@ -449,6 +449,11 @@ class image
     {
         // if it throws and _memory!=0 the client must deallocate _memory
         _allocated_bytes = total_allocated_size_in_bytes(dimensions);
+        if (_allocated_bytes == 0)
+        {
+            return;
+        }
+
         _memory=_alloc.allocate( _allocated_bytes );
 
         unsigned char* tmp=(_align_in_bytes>0) ? (unsigned char*)align((std::size_t)_memory,_align_in_bytes) : _memory;
@@ -465,6 +470,10 @@ class image
         std::size_t plane_size=row_size*dimensions.y;
 
         _allocated_bytes = total_allocated_size_in_bytes( dimensions );
+        if (_allocated_bytes == 0)
+        {
+            return;
+        }
 
         _memory = _alloc.allocate( _allocated_bytes );