From: Jiri Slaby <jslaby@suse.cz>
To: mbrugger@suse.com, stable@vger.kernel.org
Cc: Will Deacon <will.deacon@arm.com>, Yann Droneaud <ydroneaud@opteya.com>
Subject: Re: arm64/mm: Remove hack in mmap randomize layout
Date: Tue, 21 Jul 2015 15:55:19 +0200 [thread overview]
Message-ID: <55AE4F47.5080409@suse.cz> (raw)
In-Reply-To: <5009675.v9gvjRB4Io@ubix>
On 07/13/2015, 05:07 PM, Matthias Brugger wrote:
> Hi all,
>
> Commit d6c763afab14 "arm64/mm: Remove hack in mmap randomize layout" fixes a
> security issue which reduces the entropy for mmap base address by half [1].
> A attempt to guess where the stack is mapped via brute-force needs just half
> the attempts.
>
> I found this patch was added to v3.19-rc1 but should be added as well to:
> v3.18, v3.14, v3.12 and v3.10
Applied to 3.12. Thanks.
--
js
suse labs
next prev parent reply other threads:[~2015-07-21 13:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-13 15:07 arm64/mm: Remove hack in mmap randomize layout Matthias Brugger
2015-07-15 9:54 ` Yann Droneaud
2015-07-21 13:55 ` Jiri Slaby [this message]
2015-09-11 22:27 ` Greg KH
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