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fq_codel: fix a use-after-free

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Fixes: 25331d6ce4 ("net: sched: implement qstat helper routines")
Cc: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Cong Wang <cwang@twopensource.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
WANG Cong 2015-07-13 12:30:07 -07:00 committed by David S. Miller
parent f82b681a51
commit 052cbda41f
1 changed files with 1 additions and 1 deletions
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2
net/sched/sch_fq_codel.c
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@ -155,10 +155,10 @@ static unsigned int fq_codel_drop(struct Qdisc *sch)
skb = dequeue_head(flow); skb = dequeue_head(flow);
len = qdisc_pkt_len(skb); len = qdisc_pkt_len(skb);
q->backlogs[idx] -= len; q->backlogs[idx] -= len;
kfree_skb(skb);
sch->q.qlen--; sch->q.qlen--;
qdisc_qstats_drop(sch); qdisc_qstats_drop(sch);
qdisc_qstats_backlog_dec(sch, skb); qdisc_qstats_backlog_dec(sch, skb);
kfree_skb(skb);
flow->dropped++; flow->dropped++;
return idx; return idx;
} }