From: Muli Ben-Yehuda <muli@il.ibm.com>
To: "Björn Steinbrink" <B.Steinbrink@gmx.de>
Cc: linux-kernel@vger.kernel.org, dev@sw.ru, dev@openvz.org,
stable@kernel.org
Subject: Re: + sys_getppid-oopses-on-debug-kernel.patch added to -mm tree
Date: Tue, 8 Aug 2006 17:57:09 +0300 [thread overview]
Message-ID: <20060808145709.GB3953@rhun.haifa.ibm.com> (raw)
In-Reply-To: <20060808145138.GA2720@atjola.homenet>
On Tue, Aug 08, 2006 at 04:51:38PM +0200, Björn Steinbrink wrote:
> There's a note right above the function that explains it:
> * NOTE! This depends on the fact that even if we _do_
> * get an old value of "parent", we can happily dereference
> * the pointer (it was and remains a dereferencable kernel pointer
> * no matter what): we just can't necessarily trust the result
> * until we know that the parent pointer is valid.
Even without getting into just how ugly this is, is it really worth
it?
Cheers,
Muli
next prev parent reply other threads:[~2006-08-08 14:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200608081432.k78EWprf007511@shell0.pdx.osdl.net>
2006-08-08 14:39 ` Muli Ben-Yehuda
2006-08-08 14:51 ` Björn Steinbrink
2006-08-08 14:57 ` Muli Ben-Yehuda [this message]
2006-08-08 15:22 ` Alan Cox
2006-08-08 15:39 ` Kirill Korotaev
2006-08-08 16:36 ` Dave Jones
2006-08-09 8:12 ` Kirill Korotaev
2006-08-09 17:38 ` Dave Jones
2006-08-10 9:35 ` Kirill Korotaev
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