linux-kernel - Re: Bad ext3/nfs DoS bug

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Message-Id: <1153253907.21024.25.camel@localhost>
Date:	Tue, 18 Jul 2006 22:18:26 +0200
From:	Marcel Holtmann <marcel@...tmann.org>
To:	James <20@...ingley.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Bad ext3/nfs DoS bug

Hi James,

> > What is the reason behind your question? Does disabling subtree checking
> > changes something?
> 
> just that the iget() call which causes the problem in 2.6
> is happening in the subtree checking code, not based on
> analysis of the flow.

just did a quick test with the RHEL4 kernel (2.6.9 based) and
subtree_check and no_subtree_check export option. No difference and in
both cases it gets remounted read-only.

Regards

Marcel


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