From: Bob Copeland <me@bobcopeland.com>
Date: Sat, 6 Sep 2008 21:51:53 +0000 (-0400)
Subject: omfs: check bounds on block numbers before passing to sb_bread
X-Git-Tag: v2.6.36-rc1~302^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f068272cb2f134a194b93e94a8e0672bfce48cd8;p=pandora-kernel.git

omfs: check bounds on block numbers before passing to sb_bread

In case of filesystem corruption, passing unchecked block numbers into
sb_bread can result in an infinite loop in __getblk().  Introduce a wrapper
function omfs_sbread() to check the block numbers and to also perform the
clus_to_blk() scaling.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
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