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(parent: e6b8bc0) | patch
ext3: Add sanity check to make_indexed_dir
authorTheodore Ts'o <tytso@mit.edu>
Fri, 16 Jan 2009 16:13:47 +0000 (11:13 -0500)
committerTheodore Ts'o <tytso@mit.edu>
Fri, 16 Jan 2009 16:13:47 +0000 (11:13 -0500)
commita21102b55c4f8dfd3adb4a15a34cd62237b46039
tree270f663b46460ee6055073fe862b4ec68ee47bbdtree | snapshot
parente6b8bc09ba2075cd91fbffefcd2778b1a00bd76fcommit | diff
ext3: Add sanity check to make_indexed_dir

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>
Cc: stable@kernel.org
fs/ext3/namei.c diff | blob | history
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