irda: Fix irda_getname() leak

commit 09384dfc76e526c3993c09c42e016372dc9dd22c upstream.

irda_getname() can leak kernel memory to user.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index e0fbcff6eb218eb8681f9bb16ed7da2f1e54e6d6..b06224bb06e63c1697752dedfaf085f00bba1799 100644 (file)
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -714,6 +714,7 @@ static int irda_getname(struct socket *sock, struct sockaddr *uaddr,
        struct sock *sk = sock->sk;
        struct irda_sock *self = irda_sk(sk);
 
+       memset(&saddr, 0, sizeof(saddr));
        if (peer) {
                if (sk->sk_state != TCP_ESTABLISHED)
                        return -ENOTCONN;