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Date: Mon, 6 Feb 2012 13:22:01 +0400
From: Solar Designer <>
Subject: Re: CVE-2011-4324 kernel: nfsv4: mknod(2) DoS

On Thu, Nov 24, 2011 at 09:40:42AM +0800, Eugene Teo wrote:
> This only affects the Linux kernel as shipped with Red Hat Enterprise
> Linux 5. It is possible to trigger the BUG() in fs/nfs/nfs4xdr.c on a
> NFSv4 mount. This patch fixed the problem, although we only backported
> the relevant parts of the patch,

Assuming that the fix for this one is correct and sufficient (and it
appears to be), this is definitely no worse than a DoS. :-)

-			BUG();
+			WRITE32(0);


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