[PATCH] Bluetooth: Don't accept ConfigReq if we aren't in the BT_CONFIG state

["Gustavo F. Padovan" <gustavo@padovan.org>]

From: Gustavo F. Padovan <padovan@profusion.mobi>

If such event happens we shall reply with a Command Reject, because we are
not expecting any configure request.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
---
 net/bluetooth/l2cap.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 9753b69..f725fcc 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -2741,8 +2741,14 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 	if (!sk)
 		return -ENOENT;
 
-	if (sk->sk_state == BT_DISCONN)
+	if (sk->sk_state != BT_CONFIG) {
+		struct l2cap_cmd_rej rej;
+
+		rej.reason = cpu_to_le16(0x0002);
+		l2cap_send_cmd(conn, cmd.ident, L2CAP_COMMAND_REJ,
+				sizeof(rej), &rej);
 		goto unlock;
+	}
 
 	/* Reject if config buffer is too small. */
 	len = cmd_len - sizeof(*req);
-- 
1.7.1