ChangeLog, dirblock.c:

ChangeLog, dirblock.c:
  dirblock.c (ext2fs_read_dir_block): Check for an directory record
  	length which isn't a multiple four, and treat that as an invalid.
  	Scan the directory and return an error (EXT2_ET_DIR_CORRUPTED) if the
  	directory records are orrupted.
  	(ext2fs_write_dir_block): If while byte-swapping the directory block,
  	if there's an error, abort and return EXT2_ET_DIR_CORRUPTED.