tree 029de7e2f3e4358fdc889fdd5ea59fd75ea02723
parent 42b676c72e045ecf05d2c304700300115caf82f6
author Willem de Bruijn <willemb@google.com> 1545587538 -0500
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1547051911 +0100

ieee802154: lowpan_header_create check must check daddr

[ Upstream commit 40c3ff6d5e0809505a067dd423c110c5658c478c ]

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

Fixes: 87a93e4eceb4 ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>