From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C8450C10F14 for ; Thu, 3 Oct 2019 17:27:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9643520830 for ; Thu, 3 Oct 2019 17:27:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570123631; bh=hhN+3LOPVUOJFHZEPOP6ItPeM/Q5qW9CutUZio7EAKM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=rTHBEVJR9LDXIZb1ebwxzs64lL6fsUq58QFsO8TWshuiKLmbTrjTnUYqdQVPQTa0X LyRfqy1s7wyO7+fINCx1ZcZthXTLKu3CXx5EtoAR8vrZtABjppNTdTjTwsLqDRbYr9 V6ImBegX/EsGn1lr3Uw7q2YI3vdog5CyZL4V91Zc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387856AbfJCQPL (ORCPT ); Thu, 3 Oct 2019 12:15:11 -0400 Received: from mail.kernel.org ([198.145.29.99]:39052 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387836AbfJCQPK (ORCPT ); Thu, 3 Oct 2019 12:15:10 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 78E142054F; Thu, 3 Oct 2019 16:15:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570119309; bh=hhN+3LOPVUOJFHZEPOP6ItPeM/Q5qW9CutUZio7EAKM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MXeoUJUo819cCy46smxCarUwWhM9X8cqGlSXlxhb5KUv9sOVEV1nXV7js9z9sqp/w oVyPb5XlzewHKVasniy5zFlkpg+X7JW2q6ZvZjuZ/JEIqUhIrNPXoWbWX+3bcuV8qj w8dlBaXWiJvAWRh/hsf7hqwnCn8fdZrJA8Igm5Vc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ori Nimron , "David S. Miller" Subject: [PATCH 4.19 018/211] mISDN: enforce CAP_NET_RAW for raw sockets Date: Thu, 3 Oct 2019 17:51:24 +0200 Message-Id: <20191003154451.109637206@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191003154447.010950442@linuxfoundation.org> References: <20191003154447.010950442@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Ori Nimron [ Upstream commit b91ee4aa2a2199ba4d4650706c272985a5a32d80 ] 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 Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/isdn/mISDN/socket.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -764,6 +764,8 @@ base_sock_create(struct net *net, struct 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)