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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 11:33:47 -0800
commit723bf827f6d066a119f202131130af431dcc41a2 (patch)
treef15e5156a7bc82dde5d453dd994899c9dee6ca0f /Makefile
parent1820b28c96690ab8bc8977089d8eb4a9e7128117 (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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