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SecurityPkg: TcgSmm: Handle invalid parameter in MOR SMI handler

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Add more logic to filter invalid function parameter in MOR Control SMI handler

Cc: Long Qin <qin.long@intel.com>
Cc: Yao Jiewen <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Chao Zhang <chao.b.zhang@intel.com>
Reviewed-by: Long Qin <qin.long@intel.com>
This commit is contained in:
Zhang, Chao B 2018-07-19 17:56:38 +08:00
parent 2aa4fb10a5
commit 831bb137a8
2 changed files with 8 additions and 0 deletions
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4
SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c
View File

@ -153,6 +153,10 @@ MemoryClearCallback (
return EFI_SUCCESS; return EFI_SUCCESS;
} }
MorControl &= ~MOR_CLEAR_MEMORY_BIT_MASK; MorControl &= ~MOR_CLEAR_MEMORY_BIT_MASK;
} else {
mTcgNvs->MemoryClear.ReturnCode = MOR_REQUEST_GENERAL_FAILURE;
DEBUG ((EFI_D_ERROR, "[TPM] MOR Parameter error! Parameter = %x\n", mTcgNvs->MemoryClear.Parameter));
return EFI_SUCCESS;
} }
DataSize = sizeof (UINT8); DataSize = sizeof (UINT8);

4
SecurityPkg/Tcg/TcgSmm/TcgSmm.c
View File

@ -271,6 +271,10 @@ MemoryClearCallback (
return EFI_SUCCESS; return EFI_SUCCESS;
} }
MorControl &= ~MOR_CLEAR_MEMORY_BIT_MASK; MorControl &= ~MOR_CLEAR_MEMORY_BIT_MASK;
} else {
mTcgNvs->MemoryClear.ReturnCode = MOR_REQUEST_GENERAL_FAILURE;
DEBUG ((EFI_D_ERROR, "[TPM] MOR Parameter error! Parameter = %x\n", mTcgNvs->MemoryClear.Parameter));
return EFI_SUCCESS;
} }
DataSize = sizeof (UINT8); DataSize = sizeof (UINT8);