[U-Boot] [PATCH] efi_loader: initialize device path on alloc

[Heinrich Schuchardt]

On 03/25/2018 07:54 PM, Patrick Wildt wrote:
> Since the backing memory for a new device path can contain stale
> data we have to make sure that we zero the buffer.  Otherwise some
> code paths that don't set all fields in a structure backed by this
> device path might contain unwanted stale data.
> 
> Signed-off-by: Patrick Wildt <patrick at blueri.se>

Thank you for the patch.

Reviewed-by: Heinrich Schuchardt <xypron.glpk at gmx.de>

> ---
>  lib/efi_loader/efi_device_path.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/lib/efi_loader/efi_device_path.c b/lib/efi_loader/efi_device_path.c
> index 3c735e60d3..20f5c83219 100644
> --- a/lib/efi_loader/efi_device_path.c
> +++ b/lib/efi_loader/efi_device_path.c
> @@ -66,6 +66,7 @@ static void *dp_alloc(size_t sz)
>  		return NULL;
>  	}
>  
> +	memset(buf, 0, sz);
>  	return buf;
>  }
>  
>