From: David S. Miller <davem@davemloft.net>
Date: Tue, 15 Dec 2015 20:39:08 +0000 (-0500)
Subject: bluetooth: Validate socket address length in sco_sock_bind().
X-Git-Tag: v4.3.4~12
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9b11c6bd46ec36ddee89e29702584d0eaca2e4f7;p=thirdparty%2Fkernel%2Fstable.git

bluetooth: Validate socket address length in sco_sock_bind().

[ Upstream commit 5233252fce714053f0151680933571a2da9cbfb4 ]

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index f315c8d0e43b5..15cb6c5508bc6 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -519,6 +519,9 @@ 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) {