linux-kernel - Re: [kernel-hardening] [RFC][PATCH 6/7] mm: Add Kconfig option for slab sanitization

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Message-ID: <alpine.DEB.2.20.1512221400100.15237@east.gentwo.org>
Date:	Tue, 22 Dec 2015 14:01:34 -0600 (CST)
From:	Christoph Lameter <cl@...ux.com>
To:	Mathias Krause <minipli@...glemail.com>
cc:	Laura Abbott <laura@...bott.name>,
	kernel-hardening@...ts.openwall.com,
	Pekka Enberg <penberg@...nel.org>,
	David Rientjes <rientjes@...gle.com>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Kees Cook <keescook@...omium.org>
Subject: Re: [kernel-hardening] [RFC][PATCH 6/7] mm: Add Kconfig option for
 slab sanitization

On Tue, 22 Dec 2015, Mathias Krause wrote:

> How many systems, do you think, are running with enabled DEBUG_SLAB /
> SLUB_DEBUG in production? Not so many, I'd guess. And the ones running
> into issues probably just disable DEBUG_SLAB / SLUB_DEBUG.

All systems run with SLUB_DEBUG in production. SLUB_DEBUG causes the code
for debugging to be compiled in. Then it can be enabled later with a
command line parameter.

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