From patchwork Fri Sep 20 07:35:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 1165059 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="DgPgvpnh"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 46ZQW653w1z9sDB for ; Fri, 20 Sep 2019 17:36:02 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2395110AbfITHgB (ORCPT ); Fri, 20 Sep 2019 03:36:01 -0400 Received: from mail.kernel.org ([198.145.29.99]:58332 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2393025AbfITHgB (ORCPT ); Fri, 20 Sep 2019 03:36:01 -0400 Received: from localhost (unknown [89.205.140.247]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7B068207FC; Fri, 20 Sep 2019 07:36:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568964961; bh=+PPOrOvLe8rfiaGSPY3cPe8ZrbVFOI/MYrTa0M/ejCU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DgPgvpnh9ku/UGmk04qzseXtOcIbu8fyeXpcxMlQdJrlr14BfHQrlVwNFyB/DhKG7 qeGXKBTqh2Db0ADmeJLzGecfrvJUZvOU44NxFeJCNAWcOth+OOnoBxt1x6+WodrKA5 NvfgT5Pp3Ut96NGJllyr9bhxSPmdPJLsv6G7fnmY= From: Greg Kroah-Hartman To: netdev@vger.kernel.org Cc: isdn@linux-pingi.de, jreuter@yaina.de, ralf@linux-mips.org, alex.aring@gmail.com, stefan@datenfreihafen.org, orinimron123@gmail.com, Greg Kroah-Hartman Subject: [PATCH 1/5] mISDN: enforce CAP_NET_RAW for raw sockets Date: Fri, 20 Sep 2019 09:35:45 +0200 Message-Id: <20190920073549.517481-2-gregkh@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190920073549.517481-1-gregkh@linuxfoundation.org> References: <20190920073549.517481-1-gregkh@linuxfoundation.org> MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Ori Nimron When creating a raw AF_ISDN socket, CAP_NET_RAW needs to be checked first. Signed-off-by: Ori Nimron Signed-off-by: Greg Kroah-Hartman --- drivers/isdn/mISDN/socket.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index c6ba37df4b9d..dff4132b3702 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -754,6 +754,8 @@ base_sock_create(struct net *net, struct socket *sock, int protocol, int kern) if (sock->type != SOCK_RAW) return -ESOCKTNOSUPPORT; + if (!capable(CAP_NET_RAW)) + return -EPERM; sk = sk_alloc(net, PF_ISDN, GFP_KERNEL, &mISDN_proto, kern); if (!sk)