Commit 40c3ff6d authored Dec 23, 2018 by Willem de Bruijn Committed by David S. Miller Dec 24, 2018

ieee802154: lowpan_header_create check must check daddr



Packet sockets may call dev_header_parse with NULL daddr. Make
lowpan_header_ops.create fail.

Fixes: 87a93e4e ("ieee802154: change needed headroom/tailroom")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Alexander Aring <aring@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 7bdca378

net/ieee802154/6lowpan/tx.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -48,6 +48,9 @@ int lowpan_header_create(struct sk_buff skb, struct net_device ldev,
		const struct ipv6hdr *hdr = ipv6_hdr(skb);
		struct neighbour *n;

		if (!daddr)
		return -EINVAL;

		/* TODO:
		* if this package isn't ipv6 one, where should it be routed?
		*/