Re: [kernel-hardening] [PATCH 2/2] arm: apply more __ro_after_init

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On Fri, Jun 3, 2016 at 11:51 AM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> On Fri, Jun 03, 2016 at 11:40:24AM -0700, Kees Cook wrote:
>> Guided by grsecurity's analogous __read_only markings in arch/arm,
>> this applies several uses of __ro_after_init to structures that are
>> only updated during __init.
>>
>> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
>> ---
>>  arch/arm/kernel/cpuidle.c |  2 +-
>>  arch/arm/kernel/setup.c   | 10 +++++-----
>>  arch/arm/kernel/smp.c     |  2 +-
>>  arch/arm/lib/delay.c      |  2 +-
>>  arch/arm/mm/mmu.c         |  9 ++-------
>>  arch/x86/mm/ioremap.c     |  3 +--
>
> I don't think this x86 file is an arm-specific one :)

Hah, whooops. :)

> That minor nit aside, these patches are a great step forward, are you
> going to take them and work to push them upstream, or do you want/need
> others to do this?

I'll collect more like these and carry a tree for -next and push them for v4.8.

-Kees

-- 
Kees Cook
Chrome OS & Brillo Security
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