Re: [PATCH v2 1/8] linux/arm: fix ARM Linux header layout

[Daniel Kiper <daniel.kiper@oracle.com>]

On Sun, Oct 25, 2020 at 02:49:34PM +0100, Ard Biesheuvel wrote:
> The hdr_offset member of the ARM Linux image header appears at
> offset 0x3c, matching the PE/COFF spec's placement of the COFF
> header offset in the MS-DOS header. We're currently off by four,
> so fix that.
>
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@arm.com>

I was asked by Dimitri to take this patch. I double checked it. It
looks that it impacts only one grub_file_read() and one grub_dprintf().
So, there is no or minimal risk at this point and no big advantage
for upstream. Though, due to low risk, I will take it for downstream
advantage.

So, Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>

Until I hear any objections in an hour or so...

Daniel

> ---
>  include/grub/arm/linux.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/grub/arm/linux.h b/include/grub/arm/linux.h
> index 2e98a6689696..bcd5a7eb186e 100644
> --- a/include/grub/arm/linux.h
> +++ b/include/grub/arm/linux.h
> @@ -30,7 +30,7 @@ struct linux_arm_kernel_header {
>    grub_uint32_t magic;
>    grub_uint32_t start; /* _start */
>    grub_uint32_t end;   /* _edata */
> -  grub_uint32_t reserved2[4];
> +  grub_uint32_t reserved2[3];
>    grub_uint32_t hdr_offset;
>  };
>
> --
> 2.17.1