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| author | Star Zeng <star.zeng@intel.com> | 2015-07-27 00:49:00 +0000 |
|---|---|---|
| committer | lzeng14 <lzeng14@Edk2> | 2015-07-27 00:49:00 +0000 |
| commit | cdc83ccf7195c66c77b869ee62155108e39a0246 (patch) | |
| tree | 01c7f571700dd3e63b088b714fe5f426928f3f4b | |
| parent | 88656abf1b3a690969851880ba2b134e0d144625 (diff) | |
| download | edk2-cdc83ccf7195c66c77b869ee62155108e39a0246.tar.gz edk2-cdc83ccf7195c66c77b869ee62155108e39a0246.tar.bz2 edk2-cdc83ccf7195c66c77b869ee62155108e39a0246.zip | |
MdeModulePkg Variable: Read MonotonicCount by ReadUnaligned64()
As variable HEADER_ALIGNMENT = 4, the MonotonicCount in
AUTHENTICATED_VARIABLE_HEADER may be not UINT64 aligned,
so go to use ReadUnaligned64() to ensure read data correctly.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18064 6f19259b-4bc3-4df7-8a09-765794883524
| -rw-r--r-- | MdeModulePkg/Universal/Variable/RuntimeDxe/VariableExLib.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableExLib.c b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableExLib.c index 9067f64f15..615b4cec28 100644 --- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableExLib.c +++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableExLib.c @@ -67,7 +67,7 @@ VariableExLibFindVariable ( if (mVariableModuleGlobal->VariableGlobal.AuthFormat) {
AuthVariable = (AUTHENTICATED_VARIABLE_HEADER *) Variable.CurrPtr;
AuthVariableInfo->PubKeyIndex = AuthVariable->PubKeyIndex;
- AuthVariableInfo->MonotonicCount = AuthVariable->MonotonicCount;
+ AuthVariableInfo->MonotonicCount = ReadUnaligned64 (&(AuthVariable->MonotonicCount));
AuthVariableInfo->TimeStamp = &AuthVariable->TimeStamp;
}
@@ -129,7 +129,7 @@ VariableExLibFindNextVariable ( if (mVariableModuleGlobal->VariableGlobal.AuthFormat) {
AuthVariablePtr = (AUTHENTICATED_VARIABLE_HEADER *) VariablePtr;
AuthVariableInfo->PubKeyIndex = AuthVariablePtr->PubKeyIndex;
- AuthVariableInfo->MonotonicCount = AuthVariablePtr->MonotonicCount;
+ AuthVariableInfo->MonotonicCount = ReadUnaligned64 (&(AuthVariablePtr->MonotonicCount));
AuthVariableInfo->TimeStamp = &AuthVariablePtr->TimeStamp;
}
|