net_sched: sch_mqprio: dont leak kernel memory

mqprio_dump() should make sure all fields of struct tc_mqprio_qopt are
initialized.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/sch_mqprio.c b/net/sched/sch_mqprio.c
index fbc6f53cb1b777783a19b1b237f76ee6eec038c0..effd4ee0e88066cf2a34460266fcb842a5fda852 100644 (file)
--- a/net/sched/sch_mqprio.c
+++ b/net/sched/sch_mqprio.c
@@ -215,7 +215,7 @@ static int mqprio_dump(struct Qdisc *sch, struct sk_buff *skb)
        struct net_device *dev = qdisc_dev(sch);
        struct mqprio_sched *priv = qdisc_priv(sch);
        unsigned char *b = skb_tail_pointer(skb);
-       struct tc_mqprio_qopt opt;
+       struct tc_mqprio_qopt opt = { 0 };
        struct Qdisc *qdisc;
        unsigned int i;