af_iucv: Validate socket address length in iucv_sock_bind()

[pandora-kernel.git] / net / iucv / af_iucv.c

diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index cf98d62..fc36acc 100644 (file)
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -708,6 +708,9 @@ static int iucv_sock_bind(struct socket *sock, struct sockaddr *addr,
        if (!addr || addr->sa_family != AF_IUCV)
                return -EINVAL;
 
+       if (addr_len < sizeof(struct sockaddr_iucv))
+               return -EINVAL;
+
        lock_sock(sk);
        if (sk->sk_state != IUCV_OPEN) {
                err = -EBADFD;