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From: Linus Torvalds <torvalds@osdl.org>
To: Stas Sergeev <stsp@aknet.ru>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Bug in IO bitmap handling? Probably exploitable (2.6.5)
Date: Fri, 7 May 2004 09:38:01 -0700 (PDT)	[thread overview]
Message-ID: <Pine.LNX.4.58.0405070932230.3271@ppc970.osdl.org> (raw)
In-Reply-To: <409BA6B1.7030809@aknet.ru>



On Fri, 7 May 2004, Stas Sergeev wrote:
> 
> Can someone please confirm (or refute) the presense of the bug there?

Looks very true, and your patch looks fine too, except we should use
"get_cpu()" and "put_cpu()" to make sure that kernel preemption does not
change the CPU in the middle of the operation.

Thanks,

		Linus

      reply	other threads:[~2004-05-07 16:38 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-05-07 15:09 Stas Sergeev
2004-05-07 16:38 ` Linus Torvalds [this message]

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