| 12345678910111213141516171819202122232425 |
- From: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
- Date: Mon, 20 Apr 2015 21:07:48 +0200
- Subject: [PATCH] pppoe: Lacks DST MAC address check
- A pppoe session is identified by its session ID and MAC address.
- Currently pppoe does not check if the received pkg has the correct
- MAC address. This is a problem when the eth I/F is in promisc mode
- as then any DST MAC address is accepted.
- Signed-off-by: Joakim Tjernlund <joakim.tjernlund@transmode.se>
- Signed-off-by: David S. Miller <davem@davemloft.net>
- ---
- --- a/drivers/net/ppp/pppoe.c
- +++ b/drivers/net/ppp/pppoe.c
- @@ -379,6 +379,9 @@ static int pppoe_rcv_core(struct sock *s
- * can't change.
- */
-
- + if (skb->pkt_type == PACKET_OTHERHOST)
- + goto abort_kfree;
- +
- if (sk->sk_state & PPPOX_BOUND) {
- ppp_input(&po->chan, skb);
- } else if (sk->sk_state & PPPOX_RELAY) {
|
