From: Igor Stoppa <igor.stoppa@huawei.com>
To: Matthew Wilcox <willy@infradead.org>
Cc: <david@fromorbit.com>, <keescook@chromium.org>,
<mhocko@kernel.org>, <labbott@redhat.com>,
<linux-security-module@vger.kernel.org>, <linux-mm@kvack.org>,
<linux-kernel@vger.kernel.org>,
<kernel-hardening@lists.openwall.com>
Subject: Re: [PATCH 1/7] genalloc: track beginning of allocations
Date: Wed, 7 Mar 2018 12:51:46 +0200 [thread overview]
Message-ID: <a667773c-59fa-33d1-9621-16e702c1859f@huawei.com> (raw)
In-Reply-To: <6d27845d-a8f3-607b-1b6b-8464de65162c@huawei.com>
On 06/03/18 18:05, Igor Stoppa wrote:
> On 06/03/2018 16:10, Matthew Wilcox wrote:
[...]
>> This seems unnecessarily complicated.
>
> TBH it seemed to me a natural extension of the existing encoding :-)
BTW, to provide some background, this is where it begun:
http://www.openwall.com/lists/kernel-hardening/2017/08/18/4
Probably that comment about "keeping existing behavior and managing two
bitmaps locklessly" is what made me think of growing the 1-bit-per-unit
into a 1-word-per-unit.
--
igor
next prev parent reply other threads:[~2018-03-07 10:51 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-28 20:06 [RFC PATCH v18 0/7] mm: security: ro protection for dynamic data Igor Stoppa
2018-02-28 20:06 ` [PATCH 1/7] genalloc: track beginning of allocations Igor Stoppa
2018-03-02 16:37 ` kbuild test robot
2018-03-02 16:47 ` kbuild test robot
2018-03-05 19:00 ` J Freyensee
2018-03-06 17:39 ` Igor Stoppa
2018-03-06 13:19 ` Mike Rapoport
2018-03-06 14:13 ` Matthew Wilcox
2018-03-07 14:48 ` Igor Stoppa
2018-03-07 15:46 ` Igor Stoppa
2018-03-07 17:44 ` Mike Rapoprt
2018-03-06 14:10 ` Matthew Wilcox
2018-03-06 16:05 ` Igor Stoppa
2018-03-07 10:51 ` Igor Stoppa [this message]
2018-02-28 20:06 ` [PATCH 2/7] genalloc: selftest Igor Stoppa
2018-03-05 19:37 ` J Freyensee
2018-02-28 20:06 ` [PATCH 3/7] struct page: add field for vm_struct Igor Stoppa
2018-03-03 2:35 ` kbuild test robot
2018-03-05 20:31 ` J Freyensee
2018-02-28 20:06 ` [PATCH 4/7] Protectable Memory Igor Stoppa
2018-03-06 3:59 ` J Freyensee
2018-03-07 14:07 ` Igor Stoppa
2018-03-12 19:13 ` Matthew Wilcox
2018-03-12 21:25 ` Igor Stoppa
2018-02-28 20:06 ` [PATCH 5/7] Pmalloc selftest Igor Stoppa
2018-03-03 6:59 ` kbuild test robot
2018-03-06 17:13 ` J Freyensee
2018-02-28 20:06 ` [PATCH 6/7] lkdtm: crash on overwriting protected pmalloc var Igor Stoppa
2018-03-06 17:20 ` J Freyensee
2018-03-07 13:18 ` Igor Stoppa
2018-03-07 17:26 ` J Freyensee
2018-02-28 20:06 ` [PATCH 7/7] Documentation for Pmalloc Igor Stoppa
2018-03-06 13:30 ` Mike Rapoport
2018-03-06 17:33 ` J Freyensee
-- strict thread matches above, loose matches on Subject: below --
2018-02-23 14:48 [RFC PATCH v17 0/7] mm: security: ro protection for dynamic data Igor Stoppa
2018-02-23 14:48 ` [PATCH 1/7] genalloc: track beginning of allocations Igor Stoppa
2018-02-23 22:28 ` J Freyensee
2018-02-26 12:09 ` Igor Stoppa
2018-02-26 17:32 ` J Freyensee
2018-02-26 18:44 ` Igor Stoppa
2018-02-25 3:37 ` kbuild test robot
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