[ 22/25] net_sched: Fix stack info leak in cbq_dump_wrr().

Greg Kroah-Hartman
2013-08-09T01:51:31Z

From: "David S. Miller" <davem@davemloft.net>

[ Upstream commit a0db856a95a29efb1c23db55c02d9f0ff4f0db48 ]

Make sure the reserved fields, and padding (if any), are
fully initialized.

Based upon a patch by Dan Carpenter and feedback from
Joe Perches.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/sched/sch_cbq.c | 1 +
1 file changed, 1 insertion(+)

--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -1467,6 +1467,7 @@ static int cbq_dump_wrr(struct sk_buff *
unsigned char *b = skb_tail_pointer(skb);
struct tc_cbq_wrropt opt;

+ memset(&opt, 0, sizeof(opt));
opt.flags = 0;
opt.allot = cl->allot;
opt.priority = cl->priority + 1;