| Message ID | 20230915105658.3407020-1-make_ruc2021@163.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | net: sched: htb: dont intepret cls results when asked to drop | expand |
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 0d947414e616..5e8bd23d972f 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -243,6 +243,8 @@ static struct htb_class *htb_classify(struct sk_buff *skb, struct Qdisc *sch, *qerr = NET_XMIT_SUCCESS | __NET_XMIT_BYPASS; while (tcf && (result = tcf_classify(skb, NULL, tcf, &res, false)) >= 0) { + if (result == TC_ACT_SHOT) + return NULL; #ifdef CONFIG_NET_CLS_ACT switch (result) { case TC_ACT_QUEUED:
If asked to drop a packet via TC_ACT_SHOT it is unsafe to assume that res.class contains a valid pointer. Signed-off-by: Ma Ke <make_ruc2021@163.com> --- net/sched/sch_htb.c | 2 ++ 1 file changed, 2 insertions(+)