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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 56DC7C433FE for ; Wed, 22 Sep 2021 14:15:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3AD11611C9 for ; Wed, 22 Sep 2021 14:15:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235544AbhIVORG (ORCPT ); Wed, 22 Sep 2021 10:17:06 -0400 Received: from coyote.holtmann.net ([212.227.132.17]:44423 "EHLO mail.holtmann.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232401AbhIVORF (ORCPT ); Wed, 22 Sep 2021 10:17:05 -0400 Received: from smtpclient.apple (p5b3d2185.dip0.t-ipconnect.de [91.61.33.133]) by mail.holtmann.org (Postfix) with ESMTPSA id 5DA3ECED34; Wed, 22 Sep 2021 16:15:34 +0200 (CEST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.120.0.1.13\)) Subject: Re: [PATCH] Bluetooth: hci_ldisc: require CAP_NET_ADMIN to attach N_HCI ldisc From: Marcel Holtmann In-Reply-To: <20210922115656.97723-1-cascardo@canonical.com> Date: Wed, 22 Sep 2021 16:15:32 +0200 Cc: linux-bluetooth , open list , Johan Hedberg , Luiz Augusto von Dentz Content-Transfer-Encoding: 7bit Message-Id: <5E587006-CB9D-4561-955D-F296DE70CD22@holtmann.org> References: <20210922115656.97723-1-cascardo@canonical.com> To: Thadeu Lima de Souza Cascardo X-Mailer: Apple Mail (2.3654.120.0.1.13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Thadeu, > Any unprivileged user can attach N_HCI ldisc and send packets coming from a > virtual controller by using PTYs. > > Require initial namespace CAP_NET_ADMIN to do that. > > Signed-off-by: Thadeu Lima de Souza Cascardo > --- > drivers/bluetooth/hci_ldisc.c | 3 +++ > 1 file changed, 3 insertions(+) patch has been applied to bluetooth-next tree. Regards Marcel