Messages in this thread Patch in this message | | | From | Haishuang Yan <> | Subject | [PATCH] sit: reload iphdr in ipip6_rcv | Date | Sun, 4 Jun 2017 14:43:43 +0800 |
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Since iptunnel_pull_header() can call pskb_may_pull(), we must reload any pointer that was related to skb->head.
Fixes: a09a4c8dd1ec ("tunnels: Remove encapsulation offloads on decap") Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com> --- net/ipv6/sit.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index 61e5902..af832e7 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -657,6 +657,7 @@ static int ipip6_rcv(struct sk_buff *skb) if (iptunnel_pull_header(skb, 0, htons(ETH_P_IPV6), !net_eq(tunnel->net, dev_net(tunnel->dev)))) goto out; + iph = ip_hdr(skb); err = IP_ECN_decapsulate(iph, skb); if (unlikely(err)) { -- 1.8.3.1
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