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H A Dinode.cdiff b0918d9f476a8434b055e362b83fa4fd1d462c3f Fri Dec 11 08:54:16 CST 2015 Vegard Nossum <vegard.nossum@oracle.com> udf: limit the maximum number of indirect extents in a row

udf_next_aext() just follows extent pointers while extents are marked as
indirect. This can loop forever for corrupted filesystem. Limit number
the of indirect extents we are willing to follow in a row.

[JK: Updated changelog, limit, style]

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Cc: stable@vger.kernel.org
Cc: Jan Kara <jack@suse.com>
Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jan Kara <jack@suse.cz>