From: Eric Dumazet <eric.duma...@gmail.com> Date: Thu, 29 Nov 2018 15:09:18 -0800
> diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c > index > 2c38e3d0792468162ee0dc4137f1400160ab9276..22cd46a600576f286803536d45875cd9d537cdca > 100644 > --- a/net/sched/sch_netem.c > +++ b/net/sched/sch_netem.c > @@ -431,6 +431,9 @@ static int netem_enqueue(struct sk_buff *skb, struct > Qdisc *sch, > int count = 1; > int rc = NET_XMIT_SUCCESS; > > + /* Do not fool qdisc_drop_all() */ > + skb->prev = NULL; > + > /* Random duplication */ > if (q->duplicate && q->duplicate >= get_crandom(&q->dup_cor)) > ++count; If this works I definitely prefer it to making the entire stack pay the price to fix this crash.