From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751823AbeEDO3s (ORCPT ); Fri, 4 May 2018 10:29:48 -0400 Received: from mail-wr0-f195.google.com ([209.85.128.195]:41610 "EHLO mail-wr0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751519AbeEDO3n (ORCPT ); Fri, 4 May 2018 10:29:43 -0400 X-Google-Smtp-Source: AB8JxZrEYGoK+4Gzhepx/xLIshJHe4phDdNznWL8wMEwO3MH/cCzLDC2/GUG9S0Z/Lri2zeay4HO0A== From: David Herrmann To: linux-kernel@vger.kernel.org Cc: James Morris , Paul Moore , teg@jklm.no, Stephen Smalley , selinux@tycho.nsa.gov, linux-security-module@vger.kernel.org, Eric Paris , serge@hallyn.com, Casey Schaufler , davem@davemloft.net, netdev@vger.kernel.org, David Herrmann Subject: [PATCH v2 2/4] net: hook socketpair() into LSM Date: Fri, 4 May 2018 16:28:20 +0200 Message-Id: <20180504142822.15233-3-dh.herrmann@gmail.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180504142822.15233-1-dh.herrmann@gmail.com> References: <20180504142822.15233-1-dh.herrmann@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use the newly created LSM-hook for socketpair(). The default hook return-value is 0, so behavior stays the same unless LSMs start using this hook. Acked-by: Serge Hallyn Signed-off-by: Tom Gundersen Signed-off-by: David Herrmann --- net/socket.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/net/socket.c b/net/socket.c index f10f1d947c78..667a7b397134 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1420,6 +1420,13 @@ int __sys_socketpair(int family, int type, int protocol, int __user *usockvec) goto out; } + err = security_socket_socketpair(sock1, sock2); + if (unlikely(err)) { + sock_release(sock2); + sock_release(sock1); + goto out; + } + err = sock1->ops->socketpair(sock1, sock2); if (unlikely(err < 0)) { sock_release(sock2); -- 2.17.0