From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1a2nES-0004DZ-VU for user-mode-linux-devel@lists.sourceforge.net; Sat, 28 Nov 2015 21:40:36 +0000 Received: from a.ns.miles-group.at ([95.130.255.143] helo=radon.swed.at) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.76) id 1a2nER-0008WO-L3 for user-mode-linux-devel@lists.sourceforge.net; Sat, 28 Nov 2015 21:40:36 +0000 References: <1448746350-19998-1-git-send-email-mic@digikod.net> <1448746350-19998-2-git-send-email-mic@digikod.net> From: Richard Weinberger Message-ID: <565A1F49.3040408@nod.at> Date: Sat, 28 Nov 2015 22:40:25 +0100 MIME-Version: 1.0 In-Reply-To: <1448746350-19998-2-git-send-email-mic@digikod.net> List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net Subject: Re: [uml-devel] [PATCH 1/2] um: Set secure access mode for temporary file To: =?UTF-8?Q?Micka=c3=abl_Sala=c3=bcn?= , linux-kernel@vger.kernel.org Cc: user-mode-linux-user@lists.sourceforge.net, Greg Kroah-Hartman , Jeff Dike , user-mode-linux-devel@lists.sourceforge.net QW0gMjguMTEuMjAxNSB1bSAyMjozMiBzY2hyaWViIE1pY2thw6tsIFNhbGHDvG46Cj4gUmVwbGFj ZSB0aGUgZGVmYXVsdCBpbnNlY3VyZSBtb2RlIDA3Nzcgd2l0aCAwNzAwIGZvciB0ZW1wb3Jhcnkg ZmlsZS4KPiAKPiBQcm9oaWJpdCBvdGhlciB1c2VycyB0byBjaGFuZ2UgdGhlIGV4ZWN1dGFibGUg bWFwcGVkIGNvZGUuCgpIbW0sIGlzbid0IHRoZSB0bXAgZmlsZSBhbHJlYWR5IHVubGlua2VkIGF0 IHRoaXMgc3RhZ2U/CgpUaGFua3MsCi8vcmljaGFyZAoKLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClVzZXItbW9kZS1s aW51eC1kZXZlbCBtYWlsaW5nIGxpc3QKVXNlci1tb2RlLWxpbnV4LWRldmVsQGxpc3RzLnNvdXJj ZWZvcmdlLm5ldApodHRwczovL2xpc3RzLnNvdXJjZWZvcmdlLm5ldC9saXN0cy9saXN0aW5mby91 c2VyLW1vZGUtbGludXgtZGV2ZWwK From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751362AbbK1Vkd (ORCPT ); Sat, 28 Nov 2015 16:40:33 -0500 Received: from a.ns.miles-group.at ([95.130.255.143]:11949 "EHLO radon.swed.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750746AbbK1Vka (ORCPT ); Sat, 28 Nov 2015 16:40:30 -0500 Subject: Re: [PATCH 1/2] um: Set secure access mode for temporary file To: =?UTF-8?Q?Micka=c3=abl_Sala=c3=bcn?= , linux-kernel@vger.kernel.org References: <1448746350-19998-1-git-send-email-mic@digikod.net> <1448746350-19998-2-git-send-email-mic@digikod.net> Cc: Jeff Dike , Tristan Schmelcher , Greg Kroah-Hartman , user-mode-linux-devel@lists.sourceforge.net, user-mode-linux-user@lists.sourceforge.net From: Richard Weinberger Message-ID: <565A1F49.3040408@nod.at> Date: Sat, 28 Nov 2015 22:40:25 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 MIME-Version: 1.0 In-Reply-To: <1448746350-19998-2-git-send-email-mic@digikod.net> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am 28.11.2015 um 22:32 schrieb Mickaël Salaün: > Replace the default insecure mode 0777 with 0700 for temporary file. > > Prohibit other users to change the executable mapped code. Hmm, isn't the tmp file already unlinked at this stage? Thanks, //richard