netdev - Re: [patch 4/4] mISDN: misc timerdev fixes

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Message-ID: <20080923114927.GA2506@infradead.org>
Date:	Tue, 23 Sep 2008 07:49:29 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Karsten Keil <kkeil@...e.de>
Cc:	Andi Kleen <andi@...stfloor.org>,
	David Miller <davem@...emloft.net>, akpm@...ux-foundation.org,
	netdev@...r.kernel.org, ak@...ux.intel.com
Subject: Re: [patch 4/4] mISDN: misc timerdev fixes

On Tue, Sep 23, 2008 at 08:34:07AM +0200, Karsten Keil wrote:
> No really needed, normally the timers deleted long time before running out
> or never so it should never see such a race, maybe if the application is
> aborted and cleanup all timers this could happen but also this should be no
> normal case, since usually you do not kill a PBX if any connections are
> active.
> Yes it could be used to do some deny on service kind of attack, so it should
> be fixed at all.

All these timers are completely user controller and non-prviliegued.  So
this _is_ a serious issue.  In fact I think we should just rip out this
whole module, it's a really useless duplicate timer interface.

Gotta love merging unreviewed code.

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