From: NeilBrown <neilb@suse.de>
Date: Mon, 3 Aug 2009 00:59:56 +0000 (+1000)
Subject: md: avoid array overflow with bad v1.x metadata
X-Git-Tag: v2.6.31-rc6~83^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3673f305faf1bc66ead751344f8262ace851ff44;p=pandora-kernel.git

md: avoid array overflow with bad v1.x metadata

We trust the 'desc_nr' field in v1.x metadata enough to use it
as an index in an array.  This isn't really safe.
So range-check the value first.

Signed-off-by: NeilBrown <neilb@suse.de>
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