From 07070076d1baea4aa84aca817e284a63c358a149 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bastian=20Kr=C3=B6ger?= <haragashi@gmx.net>
Date: Mon, 20 Jun 2016 13:58:31 +0200
Subject: [PATCH] [PR] Fixed pointer overflow crash when using bgsave under
 rare circumstances.

---
 src/Win32_Interop/Win32_Common.cpp | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/Win32_Interop/Win32_Common.cpp b/src/Win32_Interop/Win32_Common.cpp
index 5e0653179ce..2fbce821b08 100644
--- a/src/Win32_Interop/Win32_Common.cpp
+++ b/src/Win32_Interop/Win32_Common.cpp
@@ -37,10 +37,9 @@ void EnsureMemoryIsMapped(const void *buffer, size_t size) {
     if ((size_t) (pEnd - pStart) > Globals::pageSize) {
         size_t offset = 0;
         while (offset < size) {
-            if (size < offset) {
+            offset += Globals::pageSize;
+            if (offset > size) {
                 offset = size;
-            } else {
-                offset += Globals::pageSize;
             }
             c = *((char*) (p + offset));
         }