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net_sched: Fix stack info leak in cbq_dump_wrr().

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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>
This commit is contained in:
David S. Miller 2013-07-30 00:16:21 -07:00
parent 7e44892c1b
commit a0db856a95
1 changed files with 1 additions and 0 deletions
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net/sched/sch_cbq.c
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@ -1465,6 +1465,7 @@ static int cbq_dump_wrr(struct sk_buff *skb, struct cbq_class *cl)
unsigned char *b = skb_tail_pointer(skb); unsigned char *b = skb_tail_pointer(skb);
struct tc_cbq_wrropt opt; struct tc_cbq_wrropt opt;
memset(&opt, 0, sizeof(opt));
opt.flags = 0; opt.flags = 0;
opt.allot = cl->allot; opt.allot = cl->allot;
opt.priority = cl->priority + 1; opt.priority = cl->priority + 1;