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=ham 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 49CAAC32792 for ; Thu, 3 Oct 2019 15:57:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1ECFC222C4 for ; Thu, 3 Oct 2019 15:57:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570118221; bh=ma1CarYG2lqqBfk2dF+ebJNDWLLYYaQ94NCINGFyuyM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=bdLAYoE/KKg1CO8c26IYBtEtHYkGPe/4KNTZmSiKHEiItxB3Mi+brc+poDibuo2qN aVOHHbSF2M4Bj3W/Sv7uSatp6hHZLIFpD582Kvu+WmpsRBEHSr2Iy6kONkLz5sGKM2 Y6hNZSfZRW8R7SvyeKARFydc/wj08+9+LuFdA+KA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730147AbfJCP5A (ORCPT ); Thu, 3 Oct 2019 11:57:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:39092 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730821AbfJCP45 (ORCPT ); Thu, 3 Oct 2019 11:56:57 -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 E682B20700; Thu, 3 Oct 2019 15:56:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570118216; bh=ma1CarYG2lqqBfk2dF+ebJNDWLLYYaQ94NCINGFyuyM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZOZyLq25f6+LIzLN7bKT7HN9rpyAVJx8bLtuuq/dyHhQM2VwUp14ia6GJPa6NwT1k za7RFRhimZ1KZRKZRKnh45uzrR4By5XiElfmO+KO1Ca9+0/Nv/wQT/Kiby7/+QK1pe yOb0e27m4hDSeAsPGMxUVCvWPVh+deCrU6gj2VLs= 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 4.4 30/99] ax25: enforce CAP_NET_RAW for raw sockets Date: Thu, 3 Oct 2019 17:52:53 +0200 Message-Id: <20191003154309.081719723@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191003154252.297991283@linuxfoundation.org> References: <20191003154252.297991283@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ori Nimron [ Upstream commit 0614e2b73768b502fc32a75349823356d98aae2c ] When creating a raw AF_AX25 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 --- net/ax25/af_ax25.c | 2 ++ 1 file changed, 2 insertions(+) --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -859,6 +859,8 @@ static int ax25_create(struct net *net, break; case SOCK_RAW: + if (!capable(CAP_NET_RAW)) + return -EPERM; break; default: return -ESOCKTNOSUPPORT;