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ext4: Add sanity check to make_indexed_dir
authorTheodore Ts'o <[email protected]>
Fri, 16 Jan 2009 16:13:40 +0000 (11:13 -0500)
committerTheodore Ts'o <[email protected]>
Fri, 16 Jan 2009 16:13:40 +0000 (11:13 -0500)
commite6b8bc09ba2075cd91fbffefcd2778b1a00bd76f
tree07a439d21576794c5d39a06a86b09e690e55f2f2tree | snapshot
parent06a279d636734da32bb62dd2f7b0ade666f65d7ccommit | diff
ext4: 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.

Thanks to Sami Liedes for reporting this bug.

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

Signed-off-by: "Theodore Ts'o" <[email protected]>
Cc: [email protected]
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