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: v3.2.75~5
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=805ce945362d9e496563c9885e7fde00cbd83635;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: Ben Hutchings <ben@decadent.org.uk>
---

diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 2e80aee730b2c..9f0e5a4e25831 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -475,6 +475,9 @@ 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) {