net: sctp: prevent writes to cookie_hmac_alg from accessing invalid memory

[firefly-linux-kernel-4.4.55.git] / net / sched / sch_generic.c

diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index e82a1ad80aa521291fba4e704bb3828e88a009db..16bc83b2842a74616cd58dd923a5981942321f3e 100644 (file)
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -658,8 +658,10 @@ static void qdisc_rcu_free(struct rcu_head *head)
 {
        struct Qdisc *qdisc = container_of(head, struct Qdisc, rcu_head);
 
-       if (qdisc_is_percpu_stats(qdisc))
+       if (qdisc_is_percpu_stats(qdisc)) {
                free_percpu(qdisc->cpu_bstats);
+               free_percpu(qdisc->cpu_qstats);
+       }
 
        kfree((char *) qdisc - qdisc->padded);
 }