From: Cong Wang <xiyou.wangcong@gmail.com>
To: netdev@vger.kernel.org
Cc: Cong Wang <xiyou.wangcong@gmail.com>,
John Fastabend <john.fastabend@gmail.com>,
Cong Wang <cwang@twopensource.com>
Subject: [Patch net] fq_codel: fix a use-after-free
Date: Mon, 13 Jul 2015 12:30:07 -0700 [thread overview]
Message-ID: <1436815807-25359-1-git-send-email-xiyou.wangcong@gmail.com> (raw)
Fixes: 25331d6ce42b ("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>
---
net/sched/sch_fq_codel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c
index d75993f..06e7c84 100644
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
@@ -155,10 +155,10 @@ static unsigned int fq_codel_drop(struct Qdisc *sch)
skb = dequeue_head(flow);
len = qdisc_pkt_len(skb);
q->backlogs[idx] -= len;
- kfree_skb(skb);
sch->q.qlen--;
qdisc_qstats_drop(sch);
qdisc_qstats_backlog_dec(sch, skb);
+ kfree_skb(skb);
flow->dropped++;
return idx;
}
--
1.8.3.1
next reply other threads:[~2015-07-13 19:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-13 19:30 Cong Wang [this message]
2015-07-14 6:23 ` [Patch net] fq_codel: fix a use-after-free Eric Dumazet
2015-07-16 0:20 ` David Miller
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