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=-0.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 CD6CEC48BD7 for ; Thu, 27 Jun 2019 16:24:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A20E42133F for ; Thu, 27 Jun 2019 16:24:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="gSaPGz9S" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726441AbfF0QYA (ORCPT ); Thu, 27 Jun 2019 12:24:00 -0400 Received: from mail-pg1-f194.google.com ([209.85.215.194]:36011 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726315AbfF0QYA (ORCPT ); Thu, 27 Jun 2019 12:24:00 -0400 Received: by mail-pg1-f194.google.com with SMTP id c13so1253658pgg.3 for ; Thu, 27 Jun 2019 09:23:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=/8WNz6km09cjJozBXv1ttJOzdwKWqBjOCAwXZrmYZQY=; b=gSaPGz9S5mfM2IyW50EIddVjXzosJmFwIvLy5/3d96Mmi9TwrjccATn1f1RZjIlMFe g6G3RU+uVrFmGFVIUCd9KSLCraVscKPuB43D5SpFa4Cv14trV2iOCfUw1w+dnm1He+No Zzm+bbolLanUL6IWtcmRDluyh9DqPXsyiUfrY= 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=/8WNz6km09cjJozBXv1ttJOzdwKWqBjOCAwXZrmYZQY=; b=QNcKGjrxay5hdXudBl0ZcN2lFmayxT26Q8dGuc8SzCfS4eiKO2D/7zmljey/SscK+L gkyN0s8IJiIeTCraJELQChDipWjrAesW04JFv2ClbqRrD84uZAboGvWm0Gno7aGb5U+H MtL8CI8X+Bs/Ejx0WIwtLJBT9gkSiLyCXAEy/iI5tm/aFhEMC9cQJETfCeCZdrrzgVnh 4naBCpmrWcuhCCZ/Co2fxNJaGqdl8ZWk2EdwQbcM/d8uLVVBzMr7hjE6OiCye/2mciGp 1SBldt1FuNiWxSwL1G4qjgoBiEIHAx4XbO6OlQmO7bD7AC2Tw2Sh1k4moA5o/ZT7WDDm YE0w== X-Gm-Message-State: APjAAAVmlX1qBxwMmgHpOR4nlCy1n3FncyLXVWA/Lu5SSXNHOL1Rydj2 Dynef33wVynXLPyn9XEvP4UtsA== X-Google-Smtp-Source: APXvYqzwszuLB5KUZT0GR9HWRZ7xGjWVY5pOYkuBOrrtrH5Vd2d27l5XG9aT2UNpuYPJaeE7Xhvg+A== X-Received: by 2002:a17:90a:cf0d:: with SMTP id h13mr7015152pju.63.1561652639486; Thu, 27 Jun 2019 09:23:59 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id a3sm6766104pje.3.2019.06.27.09.23.58 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 27 Jun 2019 09:23:58 -0700 (PDT) Date: Thu, 27 Jun 2019 09:23:57 -0700 From: Kees Cook To: Michal Hocko Cc: Qian Cai , Catalin Marinas , Ard Biesheuvel , Alexander Potapenko , Andrew Morton , Christoph Lameter , Masahiro Yamada , James Morris , "Serge E. Hallyn" , Nick Desaulniers , Kostya Serebryany , Dmitry Vyukov , Sandeep Patil , Laura Abbott , Randy Dunlap , Jann Horn , Mark Rutland , Marco Elver , linux-mm@kvack.org, linux-security-module@vger.kernel.org, kernel-hardening@lists.openwall.com, clang-built-linux@googlegroups.com Subject: Re: [PATCH v8 1/2] mm: security: introduce init_on_alloc=1 and init_on_free=1 boot options Message-ID: <201906270923.C73BAD213@keescook> References: <20190626121943.131390-1-glider@google.com> <20190626121943.131390-2-glider@google.com> <1561572949.5154.81.camel@lca.pw> <201906261303.020ADC9@keescook> <20190627061534.GA17798@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190627061534.GA17798@dhcp22.suse.cz> Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: On Thu, Jun 27, 2019 at 08:15:34AM +0200, Michal Hocko wrote: > This sounds familiar: http://lkml.kernel.org/r/CABXOdTd-cqHM_feAO1tvwn4Z=kM6WHKYAbDJ7LGfMvRPRPG7GA@mail.gmail.com Your memory is better than mine! I entirely forgot about this and it was only 2 months ago. Whoops. :P -- Kees Cook