linux-kernel - Re: [PATCH] md: Fix data corruption when a degraded raid5 array is reshaped.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1199401234.9102.3.camel@dwillia2-linux.ch.intel.com>
Date:	Thu, 03 Jan 2008 16:00:34 -0700
From:	Dan Williams <dan.j.williams@...el.com>
To:	NeilBrown <neilb@...e.de>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-raid@...r.kernel.org, linux-kernel@...r.kernel.org,
	stable@...nel.org
Subject: Re: [PATCH] md: Fix data corruption when a degraded raid5 array is
	reshaped.

On Thu, 2008-01-03 at 15:46 -0700, NeilBrown wrote:
> This patch fixes a fairly serious bug in md/raid5 in 2.6.23 and 24-rc.
> It would be great if it cold get into 23.13 and 24.final.
> Thanks.
> NeilBrown
> 
> ### Comments for Changeset
> 
> We currently do not wait for the block from the missing device
> to be computed from parity before copying data to the new stripe
> layout.
> 
> The change in the raid6 code is not techincally needed as we
> don't delay data block recovery in the same way for raid6 yet.
> But making the change now is safer long-term.
> 
> This bug exists in 2.6.23 and 2.6.24-rc
> 
> Cc: stable@...nel.org
> Cc: Dan Williams <dan.j.williams@...el.com>
> Signed-off-by: Neil Brown <neilb@...e.de>
> 
Acked-by: Dan Williams <dan.j.williams@...el.com>



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