From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Rosenberg Subject: [PATCH] DECnet: don't leak uninitialized stack byte Date: Tue, 23 Nov 2010 16:02:13 -0500 Message-ID: <1290546133.2276.10.camel@dan> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: davem@davemloft.net Return-path: Received: from mx1.vsecurity.com ([209.67.252.12]:59723 "EHLO mx1.vsecurity.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750917Ab0KWVCT (ORCPT ); Tue, 23 Nov 2010 16:02:19 -0500 Sender: netdev-owner@vger.kernel.org List-ID: A single uninitialized padding byte is leaked to userspace. Signed-off-by: Dan Rosenberg CC: stable --- net/decnet/af_decnet.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index d6b93d1..cf38f52 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -1556,6 +1556,8 @@ static int __dn_getsockopt(struct socket *sock, int level,int optname, char __us if (r_len > sizeof(struct linkinfo_dn)) r_len = sizeof(struct linkinfo_dn); + memset(&link, 0, sizeof(link)); + switch(sock->state) { case SS_CONNECTING: link.idn_linkstate = LL_CONNECTING;