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Date: Tue, 11 Apr 2017 11:23:28 -0500 (CDT)
From: Christoph Lameter <cl@linux.com>
Subject: Re: [PATCH] mm: Add additional consistency check
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Sender: owner-linux-mm@kvack.org
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To: Kees Cook <keescook@chromium.org>
Cc: Michal Hocko <mhocko@kernel.org>, Andrew Morton <akpm@linux-foundation.org>, Pekka Enberg <penberg@kernel.org>, David Rientjes <rientjes@google.com>, Joonsoo Kim <iamjoonsoo.kim@lge.com>, Linux-MM <linux-mm@kvack.org>, LKML <linux-kernel@vger.kernel.org>

On Tue, 11 Apr 2017, Kees Cook wrote:

> It seems that enabling the debug checks comes with a non-trivial
> performance impact. I'd like to see consistency checks by default so
> we can handle intentional heap corruption attacks better. This check
> isn't expensive...

Its in a very hot code and frequently used code path.

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