From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: [PATCH] appletalk: fix atalk_getname() leak Date: Thu, 06 Aug 2009 14:27:43 +0200 Message-ID: <4A7ACC3F.9070600@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Linux Netdev List To: "David S. Miller" Return-path: Received: from gw1.cosmosbay.com ([212.99.114.194]:35331 "EHLO gw1.cosmosbay.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753302AbZHFM1u (ORCPT ); Thu, 6 Aug 2009 08:27:50 -0400 Sender: netdev-owner@vger.kernel.org List-ID: atalk_getname() can leak 8 bytes of kernel memory to user Signed-off-by: Eric Dumazet --- diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c index 590b839..9ef6ff2 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1237,6 +1237,7 @@ static int atalk_getname(struct socket *sock, struct sockaddr *uaddr, return -ENOBUFS; *uaddr_len = sizeof(struct sockaddr_at); + memset(&sat.sat_zero, 0, sizeof(sat.sat_zero)); if (peer) { if (sk->sk_state != TCP_ESTABLISHED)