From: Li Zefan <lizf@cn.fujitsu.com>
To: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Paul Jackson <pj@sgi.com>, Paul Menage <menage@google.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] cpuset: make ntasks to be a monotonic increasing value
Date: Thu, 31 Jul 2008 15:10:15 +0800 [thread overview]
Message-ID: <48916557.8070508@cn.fujitsu.com> (raw)
In-Reply-To: <48912FDD.8060006@cn.fujitsu.com>
Lai Jiangshan wrote:
> ntasks is not a monotonic increasing value,
> So maybe fudge+1 processes are created when kmalloc and killed
> when kfree in every loop. And the loop will not end or
> repetition a long time.
>
> This patch prevent this kind of attack.
>
Could you demonstrate how to manage to do this so-called attack in
real-life?
next prev parent reply other threads:[~2008-07-31 7:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-31 3:22 [PATCH] cpuset: make ntasks to be a monotonic increasing value Lai Jiangshan
2008-07-31 7:10 ` Li Zefan [this message]
2008-07-31 7:45 ` Lai Jiangshan
2008-07-31 12:23 ` Paul Jackson
2008-07-31 13:10 ` Lai Jiangshan
2008-07-31 13:37 ` Paul Jackson
2008-07-31 17:06 ` Paul Menage
2008-07-31 19:38 ` Paul Jackson
2008-07-31 20:02 ` Paul Menage
2008-08-01 1:35 ` Lai Jiangshan
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