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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 4EEBBCA9EC9 for ; Fri, 1 Nov 2019 08:10:37 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2D0A2208E3 for ; Fri, 1 Nov 2019 08:10:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2D0A2208E3 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=xmission.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 77A356F760; Fri, 1 Nov 2019 08:10:27 +0000 (UTC) Received: from out01.mta.xmission.com (out01.mta.xmission.com [166.70.13.231]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2435F6F665 for ; Thu, 31 Oct 2019 22:12:25 +0000 (UTC) Received: from in02.mta.xmission.com ([166.70.13.52]) by out01.mta.xmission.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.87) (envelope-from ) id 1iQIg0-0007kM-Ml; Thu, 31 Oct 2019 16:12:20 -0600 Received: from ip68-227-160-95.om.om.cox.net ([68.227.160.95] helo=x220.xmission.com) by in02.mta.xmission.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.87) (envelope-from ) id 1iQIfz-0005t2-OP; Thu, 31 Oct 2019 16:12:20 -0600 From: ebiederm@xmission.com (Eric W. Biederman) To: Joe Perches References: <20191029182320.GA17569@mwanda> <87zhhjjryk.fsf@x220.int.ebiederm.org> <20191030074321.GD2656@xps-13> <87r22ujaqq.fsf@x220.int.ebiederm.org> <20191030201201.GA3209@xps-13> <734ef2833e4e4e7bded92e9d964bc2415aadf3c4.camel@perches.com> Date: Thu, 31 Oct 2019 17:12:10 -0500 In-Reply-To: <734ef2833e4e4e7bded92e9d964bc2415aadf3c4.camel@perches.com> (Joe Perches's message of "Thu, 31 Oct 2019 11:16:39 -0700") Message-ID: <87ftj8k1j9.fsf@x220.int.ebiederm.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 X-XM-SPF: eid=1iQIfz-0005t2-OP; ; ; mid=<87ftj8k1j9.fsf@x220.int.ebiederm.org>; ; ; hst=in02.mta.xmission.com; ; ; ip=68.227.160.95; ; ; frm=ebiederm@xmission.com; ; ; spf=neutral X-XM-AID: U2FsdGVkX1+Wj6J2YX8vDTKT+N1A+xx3aEijyjCXou4= X-SA-Exim-Connect-IP: 68.227.160.95 X-SA-Exim-Mail-From: ebiederm@xmission.com Subject: Re: [PATCH] fbdev: potential information leak in do_fb_ioctl() X-SA-Exim-Version: 4.2.1 (built Thu, 05 May 2016 13:38:54 -0600) X-SA-Exim-Scanned: Yes (on in02.mta.xmission.com) X-Mailman-Approved-At: Fri, 01 Nov 2019 08:09:55 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-fbdev@vger.kernel.org, security@kernel.org, Kees Cook , Julia Lawall , Bartlomiej Zolnierkiewicz , kernel-janitors@vger.kernel.org, Daniel Vetter , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Andrea Righi , Gerd Hoffmann , Sam Ravnborg , Peter Rosin , Dan Carpenter Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Message-ID: <20191031221210.laFf7D6ZoeSRgvAQnU3k6wjtCTGn5d5yGC84QYxI3co@z> Sm9lIFBlcmNoZXMgPGpvZUBwZXJjaGVzLmNvbT4gd3JpdGVzOgoKPiBPbiBXZWQsIDIwMTktMTAt MzAgYXQgMjE6MTIgKzAxMDAsIEFuZHJlYSBSaWdoaSB3cm90ZToKPj4gVGhlbiBtZW1zZXQoKSAr IG1lbWNweSgpIGlzIHByb2JhYmx5IHRoZSBiZXN0IG9wdGlvbiwKPj4gc2luY2UgY29weWluZyBh bGwgdGhvc2UgZmllbGRzIG9uZSBieSBvbmUgbG9va3MgcXVpdGUgdWdseSB0byBtZS4uLgo+Cj4g QSBtZW1zZXQgb2YgYW4gYXV0b21hdGljIGJlZm9yZSBhIG1lbWNweSB0byB0aGUgc2FtZQo+IGF1 dG9tYXRpYyBpcyB1bm5lY2Vzc2FyeS4KCllvdSBzdGlsbCBuZWVkIHRvIGd1YXJhbnRlZSB0aGF0 IGFsbCBvZiB0aGUgaG9sZXMgaW4gdGhlCnN0cnVjdHVyZSB5b3UgYXJlIGNvcHlpbmcgYXJlIGlu aXRpYWxpemVkIGJlZm9yZSB5b3UgY29weSBpdC4KCk90aGVyd2lzZSB5b3UgYXJlIGp1c3QgY2hh bmdpbmcgd2hpY2ggdW5pdGlhbGl6ZWQgbWVtb3J5IHRoYXQKaXMgYmVpbmcgY29waWVkIHRvIHVz ZXJzcGFjZS4KCldoaWNoIGlzIG15IGNvbmNlcm4gd2l0aCB5b3VyIHZlcnkgc2ltcGxlIHN1Z2dl c3Rpb24uCgpFcmljCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5v cmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2 ZWw=