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Message-ID: <alpine.DEB.2.20.1611181219250.27160@east.gentwo.org>
Date: Fri, 18 Nov 2016 12:19:42 -0600 (CST)
From: Christoph Lameter <cl@...ux.com>
To: Kees Cook <keescook@...omium.org>
cc: Michael Ellerman <mpe@...erman.id.au>,
Andrew Morton <akpm@...ux-foundation.org>,
Pekka Enberg <penberg@...nel.org>, David Rientjes <rientjes@...gle.com>,
Joonsoo Kim <iamjoonsoo.kim@....com>, Linux-MM <linux-mm@...ck.org>,
LKML <linux-kernel@...r.kernel.org>,
"kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>
Subject: Re: [PATCH v2] slab: Add POISON_POINTER_DELTA to ZERO_SIZE_PTR
On Fri, 18 Nov 2016, Kees Cook wrote:
> In this case, what about the original < ZERO_SIZE_PTR check Michael
> suggested? At least the one use in usercopy.c needs to be fixed, but
> otherwise, it should be fine?
Looks like it.
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