From df80a83c8a5a45a979c6dfa4a54f7aafbde5a671 Mon Sep 17 00:00:00 2001
From: vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Thu, 12 Feb 2009 06:05:08 +0000
Subject: enhanced security check.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7509 6f19259b-4bc3-4df7-8a09-765794883524
---
 MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'MdeModulePkg/Universal/Console')

diff --git a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c
index b0d10d1dc5..4aa8c73f06 100644
--- a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c
+++ b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c
@@ -866,6 +866,7 @@ EfiKeyFiFoInsertOneKey (
   UINT8 Tail;
 
   Tail = TerminalDevice->EfiKeyFiFo->Tail;
+  ASSERT (Tail < FIFO_MAX_NUMBER + 1);
 
   if (IsEfiKeyFiFoFull (TerminalDevice)) {
     //
@@ -900,6 +901,7 @@ EfiKeyFiFoRemoveOneKey (
   UINT8 Head;
 
   Head = TerminalDevice->EfiKeyFiFo->Head;
+  ASSERT (Head < FIFO_MAX_NUMBER + 1);
 
   if (IsEfiKeyFiFoEmpty (TerminalDevice)) {
     //
@@ -986,6 +988,8 @@ UnicodeFiFoInsertOneKey (
   UINT8 Tail;
 
   Tail = TerminalDevice->UnicodeFiFo->Tail;
+  ASSERT (Tail < FIFO_MAX_NUMBER + 1);
+
 
   if (IsUnicodeFiFoFull (TerminalDevice)) {
     //
@@ -1020,6 +1024,7 @@ UnicodeFiFoRemoveOneKey (
   UINT8 Head;
 
   Head = TerminalDevice->UnicodeFiFo->Head;
+  ASSERT (Head < FIFO_MAX_NUMBER + 1);
 
   if (IsUnicodeFiFoEmpty (TerminalDevice)) {
     //
-- 
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