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SecurityPkg/TcgDxe: Refine to compare 2 values with the same type 

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
This commit is contained in:
Hao Wu 2017-01-06 16:10:09 +08:00
parent 51dee9a4b4
commit b35ace1777
1 changed files with 2 additions and 2 deletions
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4
SecurityPkg/Tcg/TcgDxe/TcgDxe.c
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@ -8,7 +8,7 @@ buffer overflow, integer overflow.
TcgDxePassThroughToTpm() will receive untrusted input and do basic validation. TcgDxePassThroughToTpm() will receive untrusted input and do basic validation.
Copyright (c) 2005 - 2016, Intel Corporation. All rights reserved.<BR> Copyright (c) 2005 - 2017, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR> (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
This program and the accompanying materials This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License are licensed and made available under the terms and conditions of the BSD License
@ -395,7 +395,7 @@ TpmCommLogEvent (
// //
// Prevent Event Overflow // Prevent Event Overflow
// //
if (NewEventHdr->EventSize > (UINTN)(~0) - sizeof (*NewEventHdr)) { if ((UINTN) NewEventHdr->EventSize > MAX_UINTN - sizeof (*NewEventHdr)) {
return EFI_OUT_OF_RESOURCES; return EFI_OUT_OF_RESOURCES;
} }