linux-kernel - [v2.6.34-stable 047/213] net: sched: integer overflow fix

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Message-ID: <1391630568-49251-48-git-send-email-paul.gortmaker@windriver.com>
Date:	Wed, 5 Feb 2014 15:00:02 -0500
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	<stable@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:	Stefan Hasko <hasko.stevo@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: [v2.6.34-stable 047/213] net: sched: integer overflow fix

From: Stefan Hasko <hasko.stevo@...il.com>

                   -------------------
    This is a commit scheduled for the next v2.6.34 longterm release.
    http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git
    If you see a problem with using this for longterm, please comment.
                   -------------------

commit d2fe85da52e89b8012ffad010ef352a964725d5f upstream.

Fixed integer overflow in function htb_dequeue

Signed-off-by: Stefan Hasko <hasko.stevo@...il.com>
Acked-by: Eric Dumazet <edumazet@...gle.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 net/sched/sch_htb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 0b52b8de562c..efabd30425ec 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -866,7 +866,7 @@ static struct sk_buff *htb_dequeue(struct Qdisc *sch)
 	q->now = psched_get_time();
 	start_at = jiffies;
 
-	next_event = q->now + 5 * PSCHED_TICKS_PER_SEC;
+	next_event = q->now + 5LLU * PSCHED_TICKS_PER_SEC;
 
 	for (level = 0; level < TC_HTB_MAXDEPTH; level++) {
 		/* common case optimization - skip event handler quickly */
-- 
1.8.5.2

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