From 9541d1c81635eb79fa08f49f83669d1b0b73ca65 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Herv=C3=A9=20Poussineau?= <hpoussin@reactos.org>
Date: Tue, 10 Jul 2007 13:30:43 +0000
Subject: [PATCH] Prevent possible access out of bounds when calculating CPU
 speed

svn path=/trunk/; revision=27563
---
 reactos/ntoskrnl/ke/i386/kiinit.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/reactos/ntoskrnl/ke/i386/kiinit.c b/reactos/ntoskrnl/ke/i386/kiinit.c
index 770c6aa7b63..bff40a36a88 100644
--- a/reactos/ntoskrnl/ke/i386/kiinit.c
+++ b/reactos/ntoskrnl/ke/i386/kiinit.c
@@ -227,6 +227,13 @@ KiInitMachineDependent(VOID)
                     /* Move on */
                     CurrentSample++;
                     Sample++;
+
+                    if (Sample == sizeof(Samples) / sizeof(Samples[0]))
+                    {
+                        /* Restart */
+                        CurrentSample = Samples;
+                        Sample = 0;
+                    }
                 }
 
                 /* Save the CPU Speed */