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=-3.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 3B9BFC2D0A8 for ; Wed, 30 Sep 2020 07:17:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D5EC22075F for ; Wed, 30 Sep 2020 07:17:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="cz3y20dj" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728456AbgI3HRD (ORCPT ); Wed, 30 Sep 2020 03:17:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51066 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725440AbgI3HRC (ORCPT ); Wed, 30 Sep 2020 03:17:02 -0400 Received: from mail-pj1-x1042.google.com (mail-pj1-x1042.google.com [IPv6:2607:f8b0:4864:20::1042]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54030C061755; Wed, 30 Sep 2020 00:17:02 -0700 (PDT) Received: by mail-pj1-x1042.google.com with SMTP id t7so380868pjd.3; Wed, 30 Sep 2020 00:17:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=HvB5WWDeCpx4UxR7469lckPwvo+OJ9mvkcjL6Dnh5Es=; b=cz3y20djppMM1e+O0NQd3T9TUu175fFor7dMRlKW8evtdkP9ij7Mv6pVrnc65HDa5l IiQRZrbfI2PBy4HxXsqRJwldR8nks5NWfJ7JDpt3gOenJzSo+0ku7py9qj1pfGDgDgX9 hIZg1E1/NuZhV5AvDsOwcnvQZpQaUcJ7tyc2gAtbz6zH961mwlViPt3GDRUMxyq3F/EU DPIFjE/6lkd37HnMu//PZ7awQl3cpq9S6UKS+SZci6j7avpbUUcsL2mV9dbxTjLHr+0N sddd6G2EBO++3ivQbQQe+CGLjpIAzIdbR4z9UbN9RgsfAt1zFPsWV4bfRI0x37hDid9d /raA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=HvB5WWDeCpx4UxR7469lckPwvo+OJ9mvkcjL6Dnh5Es=; b=Lv2Zh5OKtqdtrAOyKW55BENq4OzbIp64/vvwrIbubLIz9UifoiChZ88Xyjn8JSlb+f i43Ipe8/99jJaXqqW2CZ885LaPmN/BTzehszycMUuq3hqs4869Hifb612RFOhAdcZunY 6f4fcqNdvL1IUnev+h9ccsbKVUigiP1VIy6z/WDOO4RnhdNrFJmu/Q2L/8T2vNaoAipk YCy4b53V3GI5FX8851kt9sCkP/g4+kvRckELbKcRCkl/8a4ZafhV/pHOQmkZ9WcqctvS K++YVEaNoCtR+SoOgE/P3YocElkiPExcJLtt9ryyE5k2O+xR+QIKLv7Hkc2Oq6V9bHV4 +TIw== X-Gm-Message-State: AOAM530J5qDrSDZzsOZXD7xx2hgamX6doWuG0k9gAup/9AVEzZSwOL4C jvMTbNzD9N0dKRPojxLc/w== X-Google-Smtp-Source: ABdhPJwwhqS/oKgZ2gCgTtB/SwDO9Ox+IW1ZuQUaTukVj7RoNvgQyRu6dyqlZGMOEx3c95YBXvzTtA== X-Received: by 2002:a17:90a:9704:: with SMTP id x4mr1361295pjo.20.1601450221896; Wed, 30 Sep 2020 00:17:01 -0700 (PDT) Received: from PWN ([161.117.41.183]) by smtp.gmail.com with ESMTPSA id l10sm1034278pgp.25.2020.09.30.00.16.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Sep 2020 00:17:01 -0700 (PDT) Date: Wed, 30 Sep 2020 03:16:52 -0400 From: Peilin Ye To: Jiri Slaby Cc: Daniel Vetter , Greg Kroah-Hartman , Bartlomiej Zolnierkiewicz , dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-kernel-mentees@lists.linuxfoundation.org, syzkaller-bugs@googlegroups.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/3] Prevent out-of-bounds access for built-in font data buffers Message-ID: <20200930071652.GA1152625@PWN> References: <0000000000006b9e8d059952095e@google.com> <3f754d60-1d35-899c-4418-147d922e29af@kernel.org> <20200925101300.GA890211@PWN> <20200925132551.GF438822@phenom.ffwll.local> <20200929123420.GA1143575@PWN> <7d341242-9612-d0ee-4b79-e93882fad73f@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7d341242-9612-d0ee-4b79-e93882fad73f@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 30, 2020 at 07:26:52AM +0200, Jiri Slaby wrote: > On 29. 09. 20, 14:34, Peilin Ye wrote: > > the work in general? I couldn't think of how do we clean up subsystems > > one by one, while keeping a `console_font` in `struct vc_data`. > > Hi, > > feel free to change struct vc_data's content as you need, of course. > Only the UAPI _definitions_ have to be preserved (like struct console_font). Ah, I see. Thank you for the reminder! Peilin Ye