Thanks.

I think we should check allocation result to see if it is NULL.

+  CapsuleResultVariable = AllocatePool (CapsuleResultVariableSize);
+  CapsuleResultVariableHeader = (VOID *)CapsuleResultVariable;

Thank you
Yao Jiewen

> -----Original Message-----
> From: edk2-devel [mailto:[email protected]] On Behalf Of
> Dandan Bi
> Sent: Monday, November 21, 2016 9:19 AM
> To: [email protected]
> Cc: Yao, Jiewen <[email protected]>
> Subject: [edk2] [patch] MdeModulePkg/DxeCapsuleLibFmp: Use
> AllocatePool for CapsuleResultVariable
> 
> Cc: Jiewen Yao <[email protected]>
> Contributed-under: TianoCore Contribution Agreement 1.0
> Signed-off-by: Dandan Bi <[email protected]>
> ---
>  .../Library/DxeCapsuleLibFmp/DxeCapsuleReportLib.c       | 16
> ++++++++++------
>  1 file changed, 10 insertions(+), 6 deletions(-)
> 
> diff --git
> a/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleReportLib.c
> b/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleReportLib.c
> index a0ed2d0..237c552 100644
> --- a/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleReportLib.c
> +++ b/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleReportLib.c
> @@ -289,36 +289,40 @@ RecordFmpCapsuleStatusVariable (
>    IN EFI_STATUS
> CapsuleStatus,
>    IN UINTN
> PayloadIndex,
>    IN EFI_FIRMWARE_MANAGEMENT_CAPSULE_IMAGE_HEADER
> *ImageHeader
>    )
>  {
> -  UINT8
> CapsuleResultVariable[sizeof(EFI_CAPSULE_RESULT_VARIABLE_HEADER) +
> sizeof(EFI_CAPSULE_RESULT_VARIABLE_FMP)];
>    EFI_CAPSULE_RESULT_VARIABLE_HEADER
> *CapsuleResultVariableHeader;
>    EFI_CAPSULE_RESULT_VARIABLE_FMP     *CapsuleResultVariableFmp;
>    EFI_STATUS                          Status;
> +  UINT8                               *CapsuleResultVariable;
> +  UINT32                              CapsuleResultVariableSize;
> 
> -  CapsuleResultVariableHeader = (VOID *)&CapsuleResultVariable[0];
> -  CapsuleResultVariableHeader->VariableTotalSize =
> sizeof(CapsuleResultVariable);
> +  CapsuleResultVariableSize  =
> sizeof(EFI_CAPSULE_RESULT_VARIABLE_HEADER) +
> sizeof(EFI_CAPSULE_RESULT_VARIABLE_FMP);
> +  CapsuleResultVariable = AllocatePool (CapsuleResultVariableSize);
> +  CapsuleResultVariableHeader = (VOID *)CapsuleResultVariable;
> +  CapsuleResultVariableHeader->VariableTotalSize =
> CapsuleResultVariableSize;
>    CopyGuid(&CapsuleResultVariableHeader->CapsuleGuid,
> &CapsuleHeader->CapsuleGuid);
>    ZeroMem(&CapsuleResultVariableHeader->CapsuleProcessed,
> sizeof(CapsuleResultVariableHeader->CapsuleProcessed));
>    gRT->GetTime(&CapsuleResultVariableHeader->CapsuleProcessed,
> NULL);
>    CapsuleResultVariableHeader->CapsuleStatus = CapsuleStatus;
> 
> -  CapsuleResultVariableFmp = (VOID
> *)&CapsuleResultVariable[sizeof(EFI_CAPSULE_RESULT_VARIABLE_HEADER)
> ];
> +  CapsuleResultVariableFmp = (VOID *)(CapsuleResultVariable +
> sizeof(EFI_CAPSULE_RESULT_VARIABLE_HEADER));
>    CapsuleResultVariableFmp->Version = 0x1;
>    CapsuleResultVariableFmp->PayloadIndex = (UINT8)PayloadIndex;
>    CapsuleResultVariableFmp->UpdateImageIndex =
> ImageHeader->UpdateImageIndex;
>    CopyGuid (&CapsuleResultVariableFmp->UpdateImageTypeId,
> &ImageHeader->UpdateImageTypeId);
> 
>    //
>    // Save Local Cache
>    //
> -  Status = WriteNewCapsuleResultVariableCache(&CapsuleResultVariable,
> sizeof(CapsuleResultVariable));
> +  Status = WriteNewCapsuleResultVariableCache(CapsuleResultVariable,
> CapsuleResultVariableSize);
> 
>    if ((CapsuleHeader->Flags &
> CAPSULE_FLAGS_PERSIST_ACROSS_RESET) != 0) {
> -    Status = WriteNewCapsuleResultVariable(&CapsuleResultVariable,
> sizeof(CapsuleResultVariable));
> +    Status = WriteNewCapsuleResultVariable(CapsuleResultVariable,
> CapsuleResultVariableSize);
>    }
> +  FreePool (CapsuleResultVariable);
>    return Status;
>  }
> 
>  /**
>    Initialize CapsuleMax variables.
> --
> 1.9.5.msysgit.1
> 
> _______________________________________________
> edk2-devel mailing list
> [email protected]
> https://lists.01.org/mailman/listinfo/edk2-devel
_______________________________________________
edk2-devel mailing list
[email protected]
https://lists.01.org/mailman/listinfo/edk2-devel

Reply via email to