[PATCH 4.1 32/43] bluetooth: Validate socket address length in sco_sock_bind().

[Greg Kroah-Hartman]

4.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: "David S. Miller" <da...@davemloft.net>

[ Upstream commit 5233252fce714053f0151680933571a2da9cbfb4 ]

Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 net/bluetooth/sco.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -520,6 +520,9 @@ static int sco_sock_bind(struct socket *
        if (!addr || addr->sa_family != AF_BLUETOOTH)
                return -EINVAL;
 
+       if (addr_len < sizeof(struct sockaddr_sco))
+               return -EINVAL;
+
        lock_sock(sk);
 
        if (sk->sk_state != BT_OPEN) {