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-rw-r--r--net/sched/em_ipt.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/net/sched/em_ipt.c b/net/sched/em_ipt.c
index 243fd22f2248..64dbafe4e94c 100644
--- a/net/sched/em_ipt.c
+++ b/net/sched/em_ipt.c
@@ -185,6 +185,19 @@ static int em_ipt_match(struct sk_buff *skb, struct tcf_ematch *em,
struct nf_hook_state state;
int ret;
+ switch (tc_skb_protocol(skb)) {
+ case htons(ETH_P_IP):
+ if (!pskb_network_may_pull(skb, sizeof(struct iphdr)))
+ return 0;
+ break;
+ case htons(ETH_P_IPV6):
+ if (!pskb_network_may_pull(skb, sizeof(struct ipv6hdr)))
+ return 0;
+ break;
+ default:
+ return 0;
+ }
+
rcu_read_lock();
if (skb->skb_iif)