From: Hannes Frederic Sowa Date: Thu, 5 Dec 2013 22:29:19 +0000 (+0100) Subject: net: clear local_df when passing skb between namespaces X-Git-Tag: v3.13-rc4~3^2~51 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=239c78db9c41a8f524cce60507440d72229d73bc;p=kernel%2Fkernel-generic.git net: clear local_df when passing skb between namespaces We must clear local_df when passing the skb between namespaces as the packet is not local to the new namespace any more and thus may not get fragmented by local rules. Fred Templin noticed that other namespaces do fragment IPv6 packets while forwarding. Instead they should have send back a PTB. The same problem should be present when forwarding DF-IPv4 packets between namespaces. Reported-by: Templin, Fred L Signed-off-by: Hannes Frederic Sowa Signed-off-by: David S. Miller --- diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 2718fed..06e72d3 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -3584,6 +3584,7 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet) skb->tstamp.tv64 = 0; skb->pkt_type = PACKET_HOST; skb->skb_iif = 0; + skb->local_df = 0; skb_dst_drop(skb); skb->mark = 0; secpath_reset(skb);