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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 11:29:46 -0800
commitda777f649cf96859d61cf285957b30b694c0fbcb (patch)
treef79cfad89cb740cca31983437015c942f89f28ab /Makefile
parentf9fd8d6232137e255fc9409a81cf282817472b6f (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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