From: Oleg Nesterov <oleg@redhat•com>
To: Aaron Tomlin <atomlin@redhat•com>
Cc: dzickus@redhat•com, jcastillo@redhat•com, riel@redhat•com,
x86@kernel•org, akpm@linux-foundation•org, peterz@infradead•org,
bmr@redhat•com, prarit@redhat•com, linux-kernel@vger•kernel.org,
rostedt@goodmis•org, minchan@kernel•org, mingo@redhat•com,
aneesh.kumar@linux•vnet.ibm.com, hannes@cmpxchg•org,
jgh@redhat•com, linuxppc-dev@lists•ozlabs.org,
tglx@linutronix•de, akpm@google•com
Subject: Re: [PATCH v4 1/3] init/main.c: Give init_task a canary
Date: Thu, 18 Sep 2014 22:27:01 +0200 [thread overview]
Message-ID: <20140918202701.GA10695@redhat.com> (raw)
In-Reply-To: <1410527779-8133-2-git-send-email-atomlin@redhat.com>
On 09/12, Aaron Tomlin wrote:
>
> Tasks get their end of stack set to STACK_END_MAGIC with the
> aim to catch stack overruns. Currently this feature does not
> apply to init_task. This patch removes this restriction.
>
> Note that a similar patch was posted by Prarit Bhargava [1]
> some time ago but was never merged.
>
> [1]: http://marc.info/?l=linux-kernel&m=127144305403241&w=2
>
> Signed-off-by: Aaron Tomlin <atomlin@redhat•com>
> Acked-by: Michael Ellerman <mpe@ellerman•id.au>
Acked-by: Oleg Nesterov <oleg@redhat•com>
next prev parent reply other threads:[~2014-09-18 20:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-12 13:16 [PATCH v4 0/3] sched: Always check the integrity of the canary Aaron Tomlin
2014-09-12 13:16 ` [PATCH v4 1/3] init/main.c: Give init_task a canary Aaron Tomlin
2014-09-18 20:27 ` Oleg Nesterov [this message]
2014-09-12 13:16 ` [PATCH v4 2/3] sched: Add helper for task stack page overrun checking Aaron Tomlin
2014-09-12 13:16 ` [PATCH v4 3/3] sched: BUG when stack end location is over written Aaron Tomlin
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