Bluetooth: Fix CID initialization for fixed channels
Fixed channels have the same source and destination CID. Ensure that the
values get properly initialized when receiving incoming connections and
deriving values from the parent socket.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 7ad346e..ae4f6b5 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1470,6 +1470,11 @@
chan->tx_credits = pchan->tx_credits;
chan->rx_credits = pchan->rx_credits;
+ if (chan->chan_type == L2CAP_CHAN_FIXED) {
+ chan->scid = pchan->scid;
+ chan->dcid = pchan->scid;
+ }
+
security_sk_clone(parent, sk);
} else {
switch (sk->sk_type) {