net: check the length of the socket address passed to connect(2)

check the length of the socket address passed to connect(2).

Check the length of the socket address passed to connect(2). If the
length is invalid, -EINVAL will be returned.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
----
net/bluetooth/l2cap.c | 3 ++-
net/bluetooth/rfcomm/sock.c | 3 ++-
net/bluetooth/sco.c | 3 ++-
net/can/bcm.c | 3 +++
net/ieee802154/af_ieee802154.c | 3 +++
net/ipv4/af_inet.c | 5 +++++
net/netlink/af_netlink.c | 3 +++
7 files changed, 20 insertions(+), 3 deletions(-)
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index e5b16b76b22e..ca6b2ad1c3fc 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -499,7 +499,8 @@ static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen
 
         BT_DBG("sk %p", sk);
 
-        if (addr->sa_family != AF_BLUETOOTH || alen < sizeof(struct sockaddr_sco))
+        if (alen < sizeof(struct sockaddr_sco) ||
+            addr->sa_family != AF_BLUETOOTH)
                 return -EINVAL;
 
         if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND)