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 F0725C10F14 for ; Thu, 3 Oct 2019 17:27:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B7C5120830 for ; Thu, 3 Oct 2019 17:27:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570123623; bh=sm0saESBAq5saeJwx5FZW4iF1wl19q26WDg2QPZUf2E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=pWX2S29Lj6cw7bZlHk1af8qwNW/YGRceAFIjWq4zukpnGWLB0mxirp3Ooc1enWUSG bkGAdxdGXFDDUhPThws4fZuDaaeVDF/P4AUfKDvzq9+sVyPrwBej3bhJggBlmXIn0H yq8ROFfAMiACGt72TNOZ4q7vlTFKWb26/+9THw5g= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731204AbfJCR1C (ORCPT ); Thu, 3 Oct 2019 13:27:02 -0400 Received: from mail.kernel.org ([198.145.29.99]:39314 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388215AbfJCQPR (ORCPT ); Thu, 3 Oct 2019 12:15:17 -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 9433720700; Thu, 3 Oct 2019 16:15:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570119317; bh=sm0saESBAq5saeJwx5FZW4iF1wl19q26WDg2QPZUf2E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=r3qfSjH1mr2Giz6lkMqYaejDjLr8/1OOQQXx2H3qYkJAH2aznayknusQ2T/k1MPVK ie+ntP7lIi3o8858B1ITaZ8dV/nIe35mT0cNHQJ7EMlFUxF3as7RaBlWumF4drtQzG JxwMq5FidmgEG/bah5YX6QGHfiFaA7RU7bKFc0vs= 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 4.19 020/211] ax25: enforce CAP_NET_RAW for raw sockets Date: Thu, 3 Oct 2019 17:51:26 +0200 Message-Id: <20191003154451.617529381@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: 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 @@ -858,6 +858,8 @@ static int ax25_create(struct net *net, break; case SOCK_RAW: + if (!capable(CAP_NET_RAW)) + return -EPERM; break; default: return -ESOCKTNOSUPPORT;