Re: [Patch] MdeModulePkg: Update RuntimeDxe Crc32 to check the input parameter

["Wu, Hao A" <hao.a.wu@intel.com>]

Reviewed-by: Hao Wu <hao.a.wu@intel.com>


Best Regards,
Hao Wu


> -----Original Message-----
> From: Gao, Liming
> Sent: Thursday, October 12, 2017 12:26 PM
> To: edk2-devel@lists.01.org
> Cc: Wu, Hao A
> Subject: [Patch] MdeModulePkg: Update RuntimeDxe Crc32 to check the input
> parameter
> 
> This is the regression issue. After apply CalculateCrc32(), the parameter
> check is missing.
> 
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Liming Gao <liming.gao@intel.com>
> Cc: Wu Hao A <hao.a.wu@intel.com>
> ---
>  MdeModulePkg/Core/RuntimeDxe/Crc32.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/MdeModulePkg/Core/RuntimeDxe/Crc32.c
> b/MdeModulePkg/Core/RuntimeDxe/Crc32.c
> index 3e91e08..c271856 100644
> --- a/MdeModulePkg/Core/RuntimeDxe/Crc32.c
> +++ b/MdeModulePkg/Core/RuntimeDxe/Crc32.c
> @@ -42,6 +42,10 @@ RuntimeDriverCalculateCrc32 (
>    OUT UINT32  *CrcOut
>    )
>  {
> +  if (Data == NULL || DataSize == 0 || CrcOut == NULL) {
> +    return EFI_INVALID_PARAMETER;
> +  }
> +
>    *CrcOut = CalculateCrc32 (Data, DataSize);
>    return EFI_SUCCESS;
>  }
> --
> 2.8.0.windows.1