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block: check for proper length of iov entries in blk_rq_map_user_iov()
authorJens Axboe <jaxboe@fusionio.com>
Fri, 29 Oct 2010 14:10:18 +0000 (08:10 -0600)
committerGreg Kroah-Hartman <gregkh@suse.de>
Thu, 9 Dec 2010 21:24:15 +0000 (13:24 -0800)
commit 9284bcf4e335e5f18a8bc7b26461c33ab60d0689 upstream.

Ensure that we pass down properly validated iov segments before
calling into the mapping or copy functions.

Reported-by: Dan Rosenberg <drosenberg@vsecurity.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

No differences found
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