Re: [PATCH] [STABLE backport 4.9] arm64, vdso: Define vdso_{start,end} as array

[Sasha Levin]

On Fri, Jul 05, 2019 at 08:47:20PM +0200, Arnd Bergmann wrote:
> From: Kees Cook <keescook@xxxxxxxxxxxx>
>
> Commit dbbb08f500d6146398b794fdc68a8e811366b451 upstream.
>
> Adjust vdso_{start|end} to be char arrays to avoid compile-time analysis
> that flags "too large" memcmp() calls with CONFIG_FORTIFY_SOURCE.
>
> Cc: Jisheng Zhang <jszhang@xxxxxxxxxxx>
> Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>
> Suggested-by: Mark Rutland <mark.rutland@xxxxxxx>
> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
> Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
> Backported to 4.9, which is lacking the rework from
> 2077be6783b5 ("arm64: Use __pa_symbol for kernel symbols")

I've queued both this and the 4.4 backport, thanks!

--
Thanks,
Sasha