bluetooth: Validate socket address length in sco_sock_bind().

[ Upstream commit 5233252fce714053f0151680933571a2da9cbfb4 ]

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>

diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 4f5f01b779b5e146c3ef4ee6cfeb346e981ccd38..6bfdd333f0d591663ad090c419023b22066e6398 100644 (file)
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -463,6 +463,9 @@ static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_le
        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) {