net_sched: Fix stack info leak in cbq_dump_wrr().

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 <[email protected]>
ambv · Jul 30, 2013 · a0db856 · a0db856
1 parent 7e44892
commit a0db856
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
@@ -1465,6 +1465,7 @@ static int cbq_dump_wrr(struct sk_buff *skb, struct cbq_class *cl)
 	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;