The sockaddr_ax25 struct has a 3 byte hole between ->sax25_call and
->sax25_ndigis. I've added a memset to avoid leaking uninitialized
stack data to userspace.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 103bd70..ec0c80f 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -834,6 +834,8 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr,
struct sock *sk = sock->sk;
struct nr_sock *nr = nr_sk(sk);
+ memset(&sax->fsa_ax25, 0, sizeof(struct sockaddr_ax25));
+
lock_sock(sk);
if (peer != 0) {
if (sk->sk_state != TCP_ESTABLISHED) {
--
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