tc: Fix unitialized kernel memory leak

Three bytes of uninitialized kernel memory are currently leaked to user

Signed-off-by: Eric Dumazet <[email protected]>
Reviewed-by: Jiri Pirko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 24d17ce..fdb694e 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1456,6 +1456,8 @@
 	nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*tcm), flags);
 	tcm = NLMSG_DATA(nlh);
 	tcm->tcm_family = AF_UNSPEC;
+	tcm->tcm__pad1 = 0;
+	tcm->tcm__pad2 = 0;
 	tcm->tcm_ifindex = qdisc_dev(q)->ifindex;
 	tcm->tcm_parent = q->handle;
 	tcm->tcm_handle = q->handle;