From: Jamal Hadi Salim <hadi@cyberus.ca>
Date: Tue, 22 May 2007 23:03:30 +0000 (+0200)
Subject: [NET_SCHED]: prio qdisc boundary condition
X-Git-Tag: v2.6.16.52-rc1~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2900960ba205f09ce3bfe2fd168dce048b061b25;p=thirdparty%2Fkernel%2Fstable.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>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
---

diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c
index 337a050895ace..af007fd627d14 100644
--- a/net/sched/sch_prio.c
+++ b/net/sched/sch_prio.c
@@ -76,7 +76,7 @@ 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];