From: Jamal Hadi Salim <hadi@cyberus.ca>
Date: Mon, 14 May 2007 09:57:19 +0000 (-0700)
Subject: [NET_SCHED]: prio qdisc boundary condition
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3e5c2d3bdbe2c047b9853c4248f881f5ac645c89;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[NET_SCHED]: prio qdisc boundary condition

This fixes an out-of-boundary condition when the classified
band equals q->bands. Caught by Alexey

Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c
index 269a6e17c6c4..6d7542c26e47 100644
--- a/net/sched/sch_prio.c
+++ b/net/sched/sch_prio.c
@@ -75,7 +75,7 @@ prio_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
 		band = res.classid;
 	}
 	band = TC_H_MIN(band) - 1;
-	if (band > q->bands)
+	if (band >= q->bands)
 		return q->queues[q->prio2band[0]];
 
 	return q->queues[band];