Bluetooth: Reject invalid bdaddr types for sockets

We need to verify that the bdaddr type passed to connect() and bind() is
within the set of valid values. If it is not we need to cleanly fail
with EINVAL.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index fcf012a422fd..3f21207d59e5 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -69,6 +69,9 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
         if (la.l2_cid && la.l2_psm)
                 return -EINVAL;
 
+        if (!bdaddr_type_is_valid(la.l2_bdaddr_type))
+                return -EINVAL;
+
         lock_sock(sk);
 
         if (sk->sk_state != BT_OPEN) {
@@ -144,6 +147,9 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr,
         if (la.l2_cid && la.l2_psm)
                 return -EINVAL;
 
+        if (!bdaddr_type_is_valid(la.l2_bdaddr_type))
+                return -EINVAL;
+
         err = l2cap_chan_connect(chan, la.l2_psm, __le16_to_cpu(la.l2_cid),
                                  &la.l2_bdaddr, la.l2_bdaddr_type);
         if (err)