Index: wpa_supplicant-0.4.8/driver_wext.c
===================================================================
--- wpa_supplicant-0.4.8.orig/driver_wext.c
+++ wpa_supplicant-0.4.8/driver_wext.c
@@ -1415,7 +1415,7 @@ int wpa_driver_wext_set_key(void *priv, 
 		memset(&iwr, 0, sizeof(iwr));
 		strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
 		iwr.u.encoding.flags = key_idx + 1;
-		iwr.u.encoding.pointer = (caddr_t) key;
+		iwr.u.encoding.pointer = (caddr_t) NULL;
 		iwr.u.encoding.length = 0;
 		if (ioctl(drv->ioctl_sock, SIOCSIWENCODE, &iwr) < 0) {
 			perror("ioctl[SIOCSIWENCODE] (set_tx)");