From: Theodore Ts'o <tytso@mit.edu>
Date: Tue, 17 Feb 2009 15:58:42 +0000 (-0500)
Subject: ext4: Add sanity check to make_indexed_dir
X-Git-Tag: v2.6.27.19~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fcc8a1931d3a0b7eeb875a9e5eb2e0ea7f32ce8a;p=pandora-kernel.git

ext4: Add sanity check to make_indexed_dir

(cherry picked from commit e6b8bc09ba2075cd91fbffefcd2778b1a00bd76f)

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.

Thanks to Sami Liedes for reporting this bug.

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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