diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 73c55cc..22538d9 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -2000,7 +2000,7 @@
 	[ P_new_c_uuid ]	= { &drbd_nl_new_c_uuid,	0 },
 };
 
-static void drbd_connector_callback(struct cn_msg *req)
+static void drbd_connector_callback(struct cn_msg *req, struct netlink_skb_parms *nsp)
 {
 	struct drbd_nl_cfg_req *nlp = (struct drbd_nl_cfg_req *)req->data;
 	struct cn_handler_struct *cm;
@@ -2017,6 +2017,11 @@
 		return;
 	}
 
+	if (!cap_raised(nsp->eff_cap, CAP_SYS_ADMIN)) {
+		retcode = ERR_PERM;
+		goto fail;
+	}
+
 	mdev = ensure_mdev(nlp);
 	if (!mdev) {
 		retcode = ERR_MINOR_INVALID;