[PATCH 3/5] Squashfs: fix corruption checks in squashfs_readdir()

2013-09-05 Thread Phillip Lougher
The dir_count and size fields when read from disk are sanity checked for correctness. However, the sanity checks only check the values are not greater than expected. As dir_count and size were incorrectly defined as signed ints, this can lead to corrupted values appearing as negative which are

[PATCH 3/5] Squashfs: fix corruption checks in squashfs_readdir()

2013-09-05 Thread Phillip Lougher
The dir_count and size fields when read from disk are sanity checked for correctness. However, the sanity checks only check the values are not greater than expected. As dir_count and size were incorrectly defined as signed ints, this can lead to corrupted values appearing as negative which are