releases/3.0.90/net_sched-fix-stack-info-leak-in-cbq_dump_wrr.patch

   1 From af843ef1c6af2a1b384e3e8f0a0468dd28525108 Mon Sep 17 00:00:00 2001
   2 From: "David S. Miller" <davem@davemloft.net>
   3 Date: Tue, 30 Jul 2013 00:16:21 -0700
   4 Subject: net_sched: Fix stack info leak in cbq_dump_wrr().
   5
   6 From: "David S. Miller" <davem@davemloft.net>
   7
   8 [ Upstream commit a0db856a95a29efb1c23db55c02d9f0ff4f0db48 ]
   9
  10 Make sure the reserved fields, and padding (if any), are
  11 fully initialized.
  12
  13 Based upon a patch by Dan Carpenter and feedback from
  14 Joe Perches.
  15
  16 Signed-off-by: David S. Miller <davem@davemloft.net>
  17 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  18 ---
  19  net/sched/sch_cbq.c |    1 +
  20  1 file changed, 1 insertion(+)
  21
  22 --- a/net/sched/sch_cbq.c
  23 +++ b/net/sched/sch_cbq.c
  24 @@ -1467,6 +1467,7 @@ static int cbq_dump_wrr(struct sk_buff *
  25         unsigned char *b = skb_tail_pointer(skb);
  26         struct tc_cbq_wrropt opt;
  27
  28 +       memset(&opt, 0, sizeof(opt));
  29         opt.flags = 0;
  30         opt.allot = cl->allot;
  31         opt.priority = cl->priority + 1;