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=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 DE828C48BD6 for ; Thu, 27 Jun 2019 16:24:18 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id 3F08B2146E for ; Thu, 27 Jun 2019 16:24:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="gSaPGz9S" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3F08B2146E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernel-hardening-return-16295-kernel-hardening=archiver.kernel.org@lists.openwall.com Received: (qmail 3133 invoked by uid 550); 27 Jun 2019 16:24:12 -0000 Mailing-List: contact kernel-hardening-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Received: (qmail 3115 invoked from network); 27 Jun 2019 16:24:11 -0000 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=czPOdfHJqtrvTz/M+eLpJgO+xh5xIDxzABS18CFu8auJ4lcbEjASSSuqfkjXq3yhsV oKDdcKyIZvi77BNN3QbQsbZyEeyAP/q8gRx+tW+h6BWA/7SFjnFOIXl23qOulX7BAQP+ u92HwMyTA2ljjh/4w0Q0HBMfF09nIhgpVOPl0uRw6V0Mj5nWGjHeHMynF+SkKaSoKLid L/Oypes592jLw2Up1+hVGeHWRUk4WfAYnJf8cEqLnSlEggX3CGKTg6PLmj1w2h41j0VS NGFnq2oyg71IcLHOb1BTt0B2L0KxOv7GSLt4Q0+6H0ncia/nC2pLShHUrMNh7onYhB05 BvAw== X-Gm-Message-State: APjAAAUc8q3SldhX9Vzj/XSQCLOzwtd2nJanaivsMFBRCTCBTt8RU4p7 yrS7Zyhh5SaGJJE8OyB94svG5g== 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) 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> 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