linux-kernel - Re: [kernel-hardening] [PATCH] use get_random

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Message-ID: <CAGXu5jJ99oYmC9hGdtnmdrB3w3ovp=3y2Qfh95z9oDia7JO6KA@mail.gmail.com>
Date:   Thu, 4 May 2017 07:29:36 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Daniel Micay <danielmicay@...il.com>, Ingo Molnar <mingo@...e.hu>
Cc:     Rik van Riel <riel@...hat.com>,
        Arjan van Ven <arjan@...ux.intel.com>,
        "kernel-hardening@...ts.openwall.com" 
        <kernel-hardening@...ts.openwall.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [kernel-hardening] [PATCH] use get_random_long for the per-task
 stack canary

On Thu, May 4, 2017 at 7:04 AM, Rik van Riel <riel@...hat.com> wrote:
> On Thu, 2017-05-04 at 09:32 -0400, Daniel Micay wrote:
>> The stack canary is an unsigned long and should be fully initialized
>> to
>> random data rather than only 32 bits of random data.
>>
>> Cc: stable@...r.kernel.org
>> Signed-off-by: Daniel Micay <danielmicay@...il.com>
>>
> Acked-by: Rik van Riel <riel@...hat.com>

Thanks! Ingo, should this go via tip?

Acked-by: Kees Cook <keescook@...omium.org>

-Kees

-- 
Kees Cook
Pixel Security