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(parent: 9dbc41d) | patch
Squashfs: fix corruption checks in squashfs_lookup()
authorPhillip Lougher <phillip@squashfs.org.uk>
Tue, 3 Sep 2013 03:21:52 +0000 (04:21 +0100)
committerPhillip Lougher <phillip@squashfs.org.uk>
Fri, 6 Sep 2013 03:57:53 +0000 (04:57 +0100)
commit52e9ce1c0f2060661e147ffaf701a17f2fc0a153
treef2aab5b8acc99d967bc507da019e95f6ded80292tree | snapshot
parent9dbc41d5d371cb10099c8182552f3915920e69b6commit | diff
Squashfs: fix corruption checks in squashfs_lookup()

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/namei.c diff | blob | history
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