From: Christoph Lameter <cl@linux.com>
To: Kees Cook <keescook@chromium.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>,
"kernel-hardening@lists.openwall.com"
<kernel-hardening@lists.openwall.com>, Jan Kara <jack@suse.cz>,
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sparclinux <sparclinux@vger.kernel.org>,
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lin <ux-arm-kernel@lists.infradead.org>,
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"David S. Miller" <davem@davemloft.net>
Subject: Re: [kernel-hardening] Re: [PATCH 9/9] mm: SLUB hardened usercopy support
Date: Fri, 8 Jul 2016 11:20:47 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.20.1607081119170.6192@east.gentwo.org> (raw)
In-Reply-To: <CAGXu5jKE=h32tHVLsDeaPN1GfC+BB3YbFvC+5TE5TK1oR-xU3A@mail.gmail.com>
On Fri, 8 Jul 2016, Kees Cook wrote:
> Is check_valid_pointer() making sure the pointer is within the usable
> size? It seemed like it was checking that it was within the slub
> object (checks against s->size, wants it above base after moving
> pointer to include redzone, etc).
check_valid_pointer verifies that a pointer is pointing to the start of an
object. It is used to verify the internal points that SLUB used and
should not be modified to do anything different.
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next prev parent reply other threads:[~2016-07-08 16:20 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <577f7e55.4668420a.84f17.5cb9SMTPIN_ADDED_MISSING@mx.google.com>
2016-07-08 13:45 ` [kernel-hardening] Re: [PATCH 9/9] mm: SLUB hardened usercopy support Christoph Lameter
2016-07-08 16:07 ` Kees Cook
2016-07-08 16:20 ` Christoph Lameter [this message]
2016-07-08 17:41 ` Kees Cook
2016-07-08 20:48 ` Kees Cook
2016-07-09 5:58 ` Michael Ellerman
2016-07-09 5:58 ` [kernel-hardening] " Michael Ellerman
2016-07-09 5:58 ` Michael Ellerman
2016-07-09 5:58 ` Michael Ellerman
2016-07-09 5:58 ` Michael Ellerman
[not found] ` <8737njpd37.fsf@@concordia.ellerman.id.au>
2016-07-09 6:07 ` Michael Ellerman
2016-07-09 6:07 ` Michael Ellerman
2016-07-09 6:07 ` Michael Ellerman
2016-07-09 6:07 ` Michael Ellerman
2016-07-09 6:07 ` Michael Ellerman
[not found] ` <57809299.84b3370a.5390c.ffff9e58SMTPIN_ADDED_BROKEN@mx.google.com>
2016-07-09 6:17 ` [kernel-hardening] " Valdis.Kletnieks
2016-07-09 17:07 ` Kees Cook
2016-07-11 6:08 ` Joonsoo Kim
2016-07-06 22:25 [PATCH 0/9] mm: Hardened usercopy Kees Cook
2016-07-06 22:25 ` [PATCH 9/9] mm: SLUB hardened usercopy support Kees Cook
[not found] ` <577ddc18.d351190a.1fa54.ffffbe79SMTPIN_ADDED_BROKEN@mx.google.com>
2016-07-07 18:56 ` [kernel-hardening] " Kees Cook
2016-07-08 10:19 ` Michael Ellerman
2016-07-08 10:19 ` Michael Ellerman
2016-07-08 10:19 ` Michael Ellerman
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