Commit 82836372 authored May 27, 2008 by Colin Committed by YOSHIFUJI Hideaki Jun 05, 2008

[IPV6] TUNNEL6: Fix incoming packet length check for inter-protocol tunnel.



I discover a strange behavior in [ipv4 in ipv6] tunnel. When IPv6 tunnel
payload is less than 40(0x28), packet can be sent to network, received in
physical interface, but not seen in IP tunnel interface. No counter increase
in tunnel interface.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

parent 24ef0da7

net/ipv6/tunnel6.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -109,7 +109,7 @@ static int tunnel46_rcv(struct sk_buff *skb)
		{
		struct xfrm6_tunnel *handler;

		if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
		if (!pskb_may_pull(skb, sizeof(struct iphdr)))
		goto drop;

		for (handler = tunnel46_handlers; handler; handler = handler->next)

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