tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

The code line where judges if offset exceed the FTW work space boundary, in some special situations where there are so many records, the offset may happen to be just equal to FtwWorkSpaceSize. And then FtwHead will be updated to be outside of work space wrongly, and cause the system to hang in this driver. 

Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Guo Dong <guo.dong@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13307 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
lzeng14 2012-05-11 01:48:45 +00:00
parent 5d4f8cf3c9
commit fe92f438ac
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
MdeModulePkg/Universal/FaultTolerantWriteDxe/FtwMisc.c
View File

@ -2,7 +2,7 @@
Internal generic functions to operate flash block.
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@ -777,7 +777,7 @@ FtwGetLastWriteHeader (
//
// If Offset exceed the FTW work space boudary, return error.
//
if (Offset > FtwWorkSpaceSize) {
if (Offset >= FtwWorkSpaceSize) {
*FtwWriteHeader = FtwHeader;
return EFI_ABORTED;
}