linux-kernel - Re: [PATCH] nfsd: Fix oops when parsing a 0 length export

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Message-ID: <1321994009.3787.19.camel@lappy>
Date:	Tue, 22 Nov 2011 22:33:29 +0200
From:	Sasha Levin <levinsasha928@...il.com>
To:	"J. Bruce Fields" <bfields@...ldses.org>
Cc:	linux-kernel@...r.kernel.org, Neil Brown <neilb@...e.de>,
	linux-nfs@...r.kernel.org
Subject: Re: [PATCH] nfsd: Fix oops when parsing a 0 length export

On Tue, 2011-11-22 at 15:28 -0500, J. Bruce Fields wrote:
> On Fri, Nov 18, 2011 at 12:14:49PM +0200, Sasha Levin wrote:
> > expkey_parse() oopses when handling a 0 length export. This is easily
> > triggerable from usermode by writing 0 bytes into
> > '/proc/[proc id]/net/rpc/nfsd.fh/channel'.
> 
> Thanks--how did you run across this?
> 
> --b.

Tried running a fuzzer on the system.

-- 

Sasha.

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