From c69d4407d8884e8a127f95d07b1896443f3716ff Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= Date: Tue, 8 Mar 2011 22:44:06 +0000 Subject: Phonet: fix NULL dereference on TX path with implicit source MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The previous Phonet patch series introduced per-socket implicit destination (i.e. connect()). In that case, the destination socket address is NULL in the transmit function. However commit a8059512b120362b15424f152b2548fe8b11bd0c ("Phonet: implement per-socket destination/peer address") is incomplete and would trigger a NULL dereference. (Fortunately, the code is not in released kernel, and in fact currently not reachable.) Signed-off-by: Rémi Denis-Courmont Signed-off-by: David S. Miller --- net/phonet/af_phonet.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'net/phonet/af_phonet.c') diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c index 30cc676c35fd..4706b77e67bf 100644 --- a/net/phonet/af_phonet.c +++ b/net/phonet/af_phonet.c @@ -262,10 +262,9 @@ int pn_skb_send(struct sock *sk, struct sk_buff *skb, else if (phonet_address_lookup(net, daddr) == 0) { dev = phonet_device_get(net); skb->pkt_type = PACKET_LOOPBACK; - } else if (pn_sockaddr_get_object(target) == 0) { + } else if (dst == 0) { /* Resource routing (small race until phonet_rcv()) */ - struct sock *sk = pn_find_sock_by_res(net, - target->spn_resource); + struct sock *sk = pn_find_sock_by_res(net, res); if (sk) { sock_put(sk); dev = phonet_device_get(net); -- cgit v1.2.3