[PATCH] wext: Fix IWENCODEEXT security permissions

	Check the permissions when user-space try to read the
encryption parameters via SIOCGIWENCODEEXT. This is trivial and
probably should go in 2.6.17...
	Bug was found by Brian Eaton <eaton.lists@gmail.com>, thanks !
Signed-off-by: NJean Tourrilhes <jt@hpl.hp.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

net/core/dev.c

@@ -2698,7 +2698,8 @@ int dev_ioctl(unsigned int cmd, void __user *arg)
 				/* If command is `set a parameter', or
 				 * `get the encoding parameters', check if
 				 * the user has the right to do it */
-				if (IW_IS_SET(cmd) || cmd == SIOCGIWENCODE) {
+				if (IW_IS_SET(cmd) || cmd == SIOCGIWENCODE
+				    || cmd == SIOCGIWENCODEEXT) {
 					if (!capable(CAP_NET_ADMIN))
 						return -EPERM;
 				}