From: Theodore Ts'o <tytso@mit.edu>
Date: Fri, 16 Jan 2009 16:13:47 +0000 (-0500)
Subject: ext3: Add sanity check to make_indexed_dir
X-Git-Tag: v2.6.27.14~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6d3910dec56c78543e35550fad433366047e6878;p=pandora-kernel.git

ext3: Add sanity check to make_indexed_dir

commit a21102b55c4f8dfd3adb4a15a34cd62237b46039 upstream.

Make sure the rec_len field in the '..' entry is sane, lest we overrun
the directory block and cause a kernel oops on a purposefully
corrupted filesystem.

This fixes a bug related to a bug originally reported by Sami Liedes
for ext4 at:

http://bugzilla.kernel.org/show_bug.cgi?id=12430

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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