Subject: Re: XFS information leak during crash
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Nathan Scott <nathans@sgi.com>
Cc: Jan Kasprzak <kas@fi.muni.cz>, linux-kernel@vger.kernel.org,
       linux-xfs@oss.sgi.com
In-Reply-To: <20051103111115.C6081538@wobbly.melbourne.sgi.com>
References: <20051102212722.GC6759@fi.muni.cz>
	 <20051103101107.O6239737@wobbly.melbourne.sgi.com>
	 <20051102233629.GD6759@fi.muni.cz>
	 <20051103104956.B6081538@wobbly.melbourne.sgi.com>
	 <20051103000317.GE6759@fi.muni.cz>
	 <20051103111115.C6081538@wobbly.melbourne.sgi.com>
Content-Type: text/plain
Content-Transfer-Encoding: 7bit
Date: Thu, 03 Nov 2005 12:45:49 +0000
Message-Id: <1131021949.18848.21.camel@localhost.localdomain>
Mime-Version: 1.0
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 830
Lines: 19

On Iau, 2005-11-03 at 11:11 +1100, Nathan Scott wrote:
> On Thu, Nov 03, 2005 at 01:03:17AM +0100, Jan Kasprzak wrote:
> > : it would only ever be uninitialised, previously-free space.
> > 
> > 	Yes, but an old data from previously deleted files
> > (sendmail's temporary files, vim save files, etc) may contain
> > a sensitive information.
> 
> Indeed.  But this is a generic issue affecting most filesystems;
> its not specific to XFS as your original mail claimed.

Very true. You can use ext3 in data journalling mode if this is a
concern but that guarantee has a performance cost

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/