diff options
Diffstat (limited to 'net/ipv4/ipip.c')
| -rw-r--r-- | net/ipv4/ipip.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c index ebd2f2d532f..396437242a1 100644 --- a/net/ipv4/ipip.c +++ b/net/ipv4/ipip.c @@ -595,7 +595,8 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) */ max_headroom = (LL_RESERVED_SPACE(tdev)+sizeof(struct iphdr)); - if (skb_headroom(skb) < max_headroom || skb_cloned(skb) || skb_shared(skb)) { + if (skb_headroom(skb) < max_headroom || skb_shared(skb) || + (skb_cloned(skb) && !skb_clone_writable(skb, 0))) { struct sk_buff *new_skb = skb_realloc_headroom(skb, max_headroom); if (!new_skb) { ip_rt_put(rt); |