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-rw-r--r--SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.c b/SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.c
index 3e0bbe1ee4..843ca2a92c 100644
--- a/SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.c
+++ b/SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.c
@@ -946,7 +946,7 @@ IsPkcsSignedDataVerifiedBySignatureList (
//
VerifyStatus = AuthenticodeVerify (
PkcsCertData->CertData,
- mSecDataDir->Size - sizeof(PkcsCertData->Hdr),
+ PkcsCertData->Hdr.dwLength - sizeof(PkcsCertData->Hdr),
RootCert,
RootCertSize,
mImageDigest,