mirror of https://github.com/acidanthera/audk.git
QuarkPlatformPkg/Tpm12DeviceLibAtmelI2c: Fix SubmitCommand() out size
https://bugzilla.tianocore.org/show_bug.cgi?id=336 When the Tpm12SubmitCommand() detects a response packet that is the same size as a TPM_RSP_COMMAND_HDR, it returns EFI_SUCCESS without reading any additional response packet information from the TPM. In that case, the return parameter OutputParameterBlockSize is not be updated, so the size of that OutputParameterBlock returned is the value passed in which could be larger than what is actually returned from the TPM. Set the OutputParameterBlockSize to the size of the TPM_RSP_COMMAND_HDR when this specific condition is detected. Cc: Kelly Steele <kelly.steele@intel.com> Cc: Lee Leahy <leroy.p.leahy@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Reviewed-by: Lee Leahy <leroy.p.leahy@intel.com>
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@ -355,6 +355,7 @@ Tpm12SubmitCommand (
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TpmOutSize = SwapBytes32 (ReadUnaligned32 (&ResponseHeader->paramSize));
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if (TpmOutSize == sizeof (TPM_RSP_COMMAND_HDR)) {
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*OutputParameterBlockSize = TpmOutSize;
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Status = EFI_SUCCESS;
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goto Done;
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}
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