From 10fe0d814add860a1040e648b1f5782c0de350e6 Mon Sep 17 00:00:00 2001
From: niruiyu <niruiyu@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Thu, 9 Jun 2011 02:01:19 +0000
Subject: [PATCH] Fix crash in GetMemoryMap() when memory type
 0x80000000-0xFFFFFFFF was allocated by OS loader

Signed-off-by: niruiyu
Reviewed-by: lgao4
Reviewed-by: hhtian

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11774 6f19259b-4bc3-4df7-8a09-765794883524
---
 MdeModulePkg/Core/Dxe/Mem/Page.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/MdeModulePkg/Core/Dxe/Mem/Page.c b/MdeModulePkg/Core/Dxe/Mem/Page.c
index e415a896cd..04844e3305 100644
--- a/MdeModulePkg/Core/Dxe/Mem/Page.c
+++ b/MdeModulePkg/Core/Dxe/Mem/Page.c
@@ -1464,8 +1464,10 @@ CoreGetMemoryMap (
       }
     }
     MemoryMap->Attribute = Entry->Attribute;
-    if (mMemoryTypeStatistics[MemoryMap->Type].Runtime) {
-      MemoryMap->Attribute |= EFI_MEMORY_RUNTIME;
+    if (MemoryMap->Type < EfiMaxMemoryType) {
+      if (mMemoryTypeStatistics[MemoryMap->Type].Runtime) {
+        MemoryMap->Attribute |= EFI_MEMORY_RUNTIME;
+      }
     }
 
     //
-- 
2.39.2