net: add build-time checks for msg->msg_name size

[~andy/linux] / net / appletalk / ddp.c

diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 7d424ac6e760bbb5d11ad3c164052374fd0491d1..02806c6b2ff36c86bc15d5da4230fbadb8d0a538 100644 (file)
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1566,7 +1566,7 @@ static int atalk_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr
 {
        struct sock *sk = sock->sk;
        struct atalk_sock *at = at_sk(sk);
-       struct sockaddr_at *usat = (struct sockaddr_at *)msg->msg_name;
+       DECLARE_SOCKADDR(struct sockaddr_at *, usat, msg->msg_name);
        int flags = msg->msg_flags;
        int loopback = 0;
        struct sockaddr_at local_satalk, gsat;
@@ -1764,7 +1764,7 @@ static int atalk_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr
        err = skb_copy_datagram_iovec(skb, offset, msg->msg_iov, copied);
 
        if (!err && msg->msg_name) {
-               struct sockaddr_at *sat = msg->msg_name;
+               DECLARE_SOCKADDR(struct sockaddr_at *, sat, msg->msg_name);
                sat->sat_family      = AF_APPLETALK;
                sat->sat_port        = ddp->deh_sport;
                sat->sat_addr.s_node = ddp->deh_snode;