[PATCH] arm64/efi: map the entire UEFI vendor string before reading it

[Catalin Marinas]

On Sun, Jul 26, 2015 at 02:59:00PM +0200, Ard Biesheuvel wrote:
> At boot, the UTF-16 UEFI vendor string is copied from the system
> table into a char array with a size of 100 bytes. However, this
> size of 100 bytes is also used for memremapping() the source,
> which may not be sufficient if the vendor string exceeds 50
> UTF-16 characters, and the placement of the vendor string inside
> a 4 KB page happens to leave the end unmapped.
> 
> So use the correct '100 * sizeof(efi_char16_t)' for the size of
> the mapping.
> 
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel at linaro.org>
> ---
> Hello Catalin,
> 
> I think this should go into v4.2 with a cc: stable.

If it's cc stable, do you have a Fixes: tag? (it saves me some
searching).

-- 
Catalin