tree 42da5de2f0ee624e675d7b27f7e8c05301de0d2d
parent 0ff716136ab73d2fc1edc0664e38169e7a76bb9a
author Arjan van de Ven <arjan@linux.intel.com> 1253991074 +0200
committer John W. Linville <linville@tuxdriver.com> 1254171306 -0400

wext: Add bound checks for copy_from_user

The wireless extensions have a copy_from_user to a local stack
array "essid", but both me and gcc have failed to find where
the bounds for this copy are located in the code.

This patch adds some basic sanity checks for the copy length
to make sure that we don't overflow the stack buffer.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>