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(parent: 52e9ce1) | patch
Squashfs: fix corruption checks in squashfs_readdir()
authorPhillip Lougher <phillip@squashfs.org.uk>
Tue, 3 Sep 2013 03:38:43 +0000 (04:38 +0100)
committerPhillip Lougher <phillip@squashfs.org.uk>
Fri, 6 Sep 2013 03:57:53 +0000 (04:57 +0100)
commit68e7f412370ecfeb1bd667d0d174fad34517516e
tree60d41e9366a38c45f836cf72403b6495e3763f4atree | snapshot
parent52e9ce1c0f2060661e147ffaf701a17f2fc0a153commit | diff
Squashfs: fix corruption checks in squashfs_readdir()

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 not trapped.

Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
fs/squashfs/dir.c diff | blob | history
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