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Fix a bug that IsSignatureFoundInDatabase() incorrectly computes CertCount. 

Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting  <ting.ye@intel.com>
Reviewed-by: Dong Guo <guo.dong@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14165 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
sfu5 2013-03-06 01:42:04 +00:00
parent 166c01fbc2
commit 7403ff5b9f
1 changed files with 1 additions and 1 deletions
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2
SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.c
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@ -837,7 +837,7 @@ IsSignatureFoundInDatabase (
//
CertList = (EFI_SIGNATURE_LIST *) Data;
while ((DataSize > 0) && (DataSize >= CertList->SignatureListSize)) {
CertCount = (CertList->SignatureListSize - CertList->SignatureHeaderSize) / CertList->SignatureSize;
CertCount = (CertList->SignatureListSize - sizeof (EFI_SIGNATURE_LIST) - CertList->SignatureHeaderSize) / CertList->SignatureSize;
Cert = (EFI_SIGNATURE_DATA *) ((UINT8 *) CertList + sizeof (EFI_SIGNATURE_LIST) + CertList->SignatureHeaderSize);
if ((CertList->SignatureSize == sizeof(EFI_SIGNATURE_DATA) - 1 + SignatureSize) && (CompareGuid(&CertList->SignatureType, CertType))) {
for (Index = 0; Index < CertCount; Index++) {