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authorXi Wang <xi.wang@gmail.com>2011-12-12 21:55:52 +0000
committerGreg Kroah-Hartman <gregkh@suse.de>2012-01-12 11:40:13 -0800
commit3c7af5a9c728fca26e90b7b58d1deb7ce4e59b45 (patch)
treee197c8677161e040e537ac2d247190de6c9f0a0b /Makefile
parent9ee3e4ab17e3670a46b24502394eb24d68a85f9b (diff)
xfs: fix acl count validation in xfs_acl_from_disk()
commit 093019cf1b18dd31b2c3b77acce4e000e2cbc9ce upstream. Commit fa8b18ed didn't prevent the integer overflow and possible memory corruption. "count" can go negative and bypass the check. Signed-off-by: Xi Wang <xi.wang@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ben Myers <bpm@sgi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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