diff options
Diffstat (limited to 'net/can/j1939/transport.c')
| -rw-r--r-- | net/can/j1939/transport.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/can/j1939/transport.c b/net/can/j1939/transport.c index 811682e06951..22f4b798d385 100644 --- a/net/can/j1939/transport.c +++ b/net/can/j1939/transport.c @@ -2004,6 +2004,12 @@ static void j1939_tp_cmd_recv(struct j1939_priv *priv, struct sk_buff *skb) extd = J1939_ETP; /* fall through */ case J1939_TP_CMD_BAM: /* fall through */ + if (cmd == J1939_TP_CMD_BAM && !j1939_cb_is_broadcast(skcb)) { + netdev_err_once(priv->ndev, "%s: BAM to unicast (%02x), ignoring!\n", + __func__, skcb->addr.sa); + return; + } + fallthrough; case J1939_TP_CMD_RTS: /* fall through */ if (skcb->addr.type != extd) return; |