From: Dave Hansen <dave.hansen@intel.com>
To: Kees Cook <keescook@chromium.org>
Cc: Alexander Potapenko <glider@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
Christoph Lameter <cl@linux.com>,
Dmitry Vyukov <dvyukov@google.com>,
Laura Abbott <labbott@redhat.com>, Linux-MM <linux-mm@kvack.org>,
linux-security-module <linux-security-module@vger.kernel.org>,
Kernel Hardening <kernel-hardening@lists.openwall.com>
Subject: Re: [PATCH 2/3] gfp: mm: introduce __GFP_NOINIT
Date: Tue, 23 Apr 2019 13:40:19 -0700 [thread overview]
Message-ID: <2c66e43f-81d5-ebeb-495a-f3f3b65d315c@intel.com> (raw)
In-Reply-To: <CAGXu5j+Lm0ba4ZQ91vZ8nZFvpJSxu_j_bEKMaa0NMsurmyZjjA@mail.gmail.com>
On 4/23/19 12:14 PM, Kees Cook wrote:
>> These sl*b ones seem like a bad idea. We already have rules that sl*b
>> allocations must be initialized by callers, and we have reasonably
>> frequent bugs where the rules are broken.
>
> Hm? No, this is saying that the page allocator can skip the auto-init
> because the slab internals will be doing it later.
Ahhh, got it. I missed all the fun in patch 1.
next prev parent reply other threads:[~2019-04-23 20:40 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-18 15:42 [PATCH 0/3] RFC: add init_allocations=1 boot option Alexander Potapenko
2019-04-18 15:42 ` [PATCH 1/3] mm: security: introduce the " Alexander Potapenko
2019-04-18 16:35 ` Dave Hansen
2019-04-18 16:43 ` Alexander Potapenko
2019-04-18 16:50 ` Alexander Potapenko
2019-04-23 8:31 ` Michal Hocko
2019-04-18 22:08 ` Randy Dunlap
2019-04-23 19:00 ` Kees Cook
2019-04-26 12:12 ` Alexander Potapenko
2019-04-23 20:36 ` Dave Hansen
2019-04-26 14:14 ` Christopher Lameter
[not found] ` <alpine.DEB.2.21.1904260911570.8340@nuc-kabylake>
2019-04-26 15:24 ` Christopher Lameter
2019-04-26 15:48 ` Alexander Potapenko
2019-04-18 15:42 ` [PATCH 2/3] gfp: mm: introduce __GFP_NOINIT Alexander Potapenko
2019-04-18 16:52 ` Dave Hansen
2019-04-23 19:14 ` Kees Cook
2019-04-23 20:40 ` Dave Hansen [this message]
2019-04-23 19:11 ` Kees Cook
2019-04-18 15:42 ` [PATCH 3/3] RFC: net: apply __GFP_NOINIT to AF_UNIX sk_buff allocations Alexander Potapenko
2019-04-23 19:17 ` Kees Cook
2019-04-18 15:44 ` [PATCH 0/3] RFC: add init_allocations=1 boot option Alexander Potapenko
2019-04-18 22:07 ` Randy Dunlap
2019-04-23 18:49 ` Kees Cook
2019-04-26 12:39 ` Alexander Potapenko
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