From: Alexey Novikov <shader@yandex.ru>
To: ALT Linux Sisyphus discussions <sisyphus@lists.altlinux.org>
Subject: Re: [sisyphus] [cyber] I: Sisyphus-20090817 packages: +28 (9313)
Date: Mon, 17 Aug 2009 12:02:10 +0400
Message-ID: <20090817080210.GA24088@localhost.localdomain> (raw)
In-Reply-To: <20090817065202.GB30489@wo.int.altlinux.org>
On Mon, Aug 17, 2009 at 10:52:02AM +0400, Dmitry V. Levin wrote:
> On Mon, Aug 17, 2009 at 10:42:17AM +0400, QA Team Robot wrote:
> > 28 UPDATED packages
> [...]
> > startup - The system startup scripts
> > * Mon Aug 17 2009 Dmitry V. Levin <ldv@altlinux> 0.9.8.22-alt1
> > - rc.d/init.d/clock, sysconfig/clock: Introduced
> > HWCLOCK_SET_TIME_AT_START (closes: #19787).
> > - sysctl.conf: Added "vm.mmap_min_addr = 65536".
>
> Учитывая прошлые и будущие kernel arbitrary code execution due to
> controlled null pointer dereference, я решил изменить значение
> vm.mmap_min_addr по умолчанию в /etc/sysctl.conf на более безопасное.
> Ходят слухи, что какой-то софт не работает в этом режиме, но
> достоверных сведений у меня нет. По крайней мере, упоминавшийся
> в этой связи wine работает. Но вы на всякий случай имейте в виду.
[novikov@novikov ~]$ cat /proc/sys/vm/mmap_min_addr
0
[novikov@novikov ~]$ xdosemu
< работает >
[novikov@novikov ~]$ sudo sh -c 'echo 65536
>/proc/sys/vm/mmap_min_addr '
[novikov@novikov ~]$ xdosemu
LOWRAM mmap: Недопустимый аргумент
Ошибка сегментирования
[novikov@novikov ~]$ uname -a
Linux novikov.localdomain 2.6.27-ovz-smp-alt8 #1 SMP Wed Jul 22 14:39:58
UTC 2009 x86_64 GNU/Linux
--
WBR, Alexey Novikov
XMPP: alex-novikov@jabber.ru, shader@ya.ru
next prev parent reply other threads:[~2009-08-17 8:02 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-17 6:52 ` Dmitry V. Levin
2009-08-17 8:02 ` Alexey Novikov [this message]
2009-08-17 10:07 ` Dmitry V. Levin
2009-08-17 11:10 ` Andrey Rahmatullin
2009-08-17 11:12 ` Dmitry V. Levin
2009-08-17 11:23 ` Led
2009-08-17 14:16 ` Michael Shigorin
2009-08-17 23:13 ` Aleksey Novodvorsky
2009-08-18 13:52 ` Michael Shigorin
2009-08-17 14:16 ` [sisyphus] vm.mmap_min_addr Dmitry V. Levin
2009-08-17 14:18 ` Andrey Rahmatullin
2009-08-17 14:24 ` Dmitry V. Levin
2009-08-17 14:28 ` Andrey Rahmatullin
2009-08-17 14:32 ` Dmitry V. Levin
2009-08-19 6:47 ` [sisyphus] [cyber] I: Sisyphus-20090817 packages: +28 (9313) Kirill A. Shutemov
2009-12-21 23:03 ` Dmitry V. Levin
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