Commit cc37f75a authored Jan 02, 2012 by Phillip Lougher

Squashfs: fix mount time sanity check for corrupted superblock



A Squashfs filesystem containing nothing but an empty directory,
although unusual and ultimately pointless, is still valid.

The directory_table >= next_table sanity check rejects these
filesystems as invalid because the directory_table is empty and
equal to next_table.

Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>

parent d7fbd893

fs/squashfs/super.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -290,7 +290,7 @@ handle_fragments:

		check_directory_table:
		/* Sanity check directory_table */
		if (msblk->directory_table >= next_table) {
		if (msblk->directory_table > next_table) {
		err = -EINVAL;
		goto failed_mount;
		}