From patchwork Tue Jan 19 09:41:33 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ursula Braun X-Patchwork-Id: 569882 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 85AC914032B for ; Tue, 19 Jan 2016 20:42:14 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757800AbcASJmL (ORCPT ); Tue, 19 Jan 2016 04:42:11 -0500 Received: from e06smtp13.uk.ibm.com ([195.75.94.109]:55050 "EHLO e06smtp13.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757628AbcASJmI (ORCPT ); Tue, 19 Jan 2016 04:42:08 -0500 Received: from localhost by e06smtp13.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 19 Jan 2016 09:42:05 -0000 Received: from d06dlp01.portsmouth.uk.ibm.com (9.149.20.13) by e06smtp13.uk.ibm.com (192.168.101.143) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Tue, 19 Jan 2016 09:42:02 -0000 X-IBM-Helo: d06dlp01.portsmouth.uk.ibm.com X-IBM-MailFrom: ubraun@linux.vnet.ibm.com X-IBM-RcptTo: linux-s390@vger.kernel.org;netdev@vger.kernel.org Received: from b06cxnps4074.portsmouth.uk.ibm.com (d06relay11.portsmouth.uk.ibm.com [9.149.109.196]) by d06dlp01.portsmouth.uk.ibm.com (Postfix) with ESMTP id EFCEC17D8067; Tue, 19 Jan 2016 09:42:06 +0000 (GMT) Received: from d06av01.portsmouth.uk.ibm.com (d06av01.portsmouth.uk.ibm.com [9.149.37.212]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u0J9g26M8978518; Tue, 19 Jan 2016 09:42:02 GMT Received: from d06av01.portsmouth.uk.ibm.com (localhost [127.0.0.1]) by d06av01.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u0J9g1ER021932; Tue, 19 Jan 2016 02:42:01 -0700 Received: from tuxmaker.boeblingen.de.ibm.com (tuxmaker.boeblingen.de.ibm.com [9.152.85.9]) by d06av01.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id u0J9g0OG021881 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA256 bits=256 verify=NO); Tue, 19 Jan 2016 02:42:01 -0700 From: Ursula Braun To: davem@davemloft.net, mschwid2@linux.vnet.ibm.com, heicars2@linux.vnet.ibm.com, netdev@vger.kernel.org, linux-s390@vger.kernel.org Cc: ubraunu@linux.vnet.ibm.com Subject: [PATCH net 1/1] af_iucv: Validate socket address length in iucv_sock_bind() Date: Tue, 19 Jan 2016 10:41:33 +0100 Message-Id: <1453196493-57590-2-git-send-email-ubraun@linux.vnet.ibm.com> X-Mailer: git-send-email 2.3.9 In-Reply-To: <1453196493-57590-1-git-send-email-ubraun@linux.vnet.ibm.com> References: <1453196493-57590-1-git-send-email-ubraun@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16011909-0013-0000-0000-00000855252F Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Ursula Braun Signed-off-by: Ursula Braun Reported-by: Dmitry Vyukov Reviewed-by: Evgeny Cherkashin --- net/iucv/af_iucv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index ef50a94..fc3598a 100644 --- 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;