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=-11.4 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL 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 C1927C4742C for ; Tue, 3 Nov 2020 22:17:42 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 274DA223EA for ; Tue, 3 Nov 2020 22:17:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="oDO+8A43" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 274DA223EA Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 7481A6B005C; Tue, 3 Nov 2020 17:17:41 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 71E9D6B005D; Tue, 3 Nov 2020 17:17:41 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 635546B0068; Tue, 3 Nov 2020 17:17:41 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0074.hostedemail.com [216.40.44.74]) by kanga.kvack.org (Postfix) with ESMTP id 36E4D6B005C for ; Tue, 3 Nov 2020 17:17:41 -0500 (EST) Received: from smtpin15.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id B66F2362B for ; Tue, 3 Nov 2020 22:17:40 +0000 (UTC) X-FDA: 77444519880.15.peace58_1d00a97272bc Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin15.hostedemail.com (Postfix) with ESMTP id 995A21814B0C1 for ; Tue, 3 Nov 2020 22:17:40 +0000 (UTC) X-HE-Tag: peace58_1d00a97272bc X-Filterd-Recvd-Size: 4322 Received: from mail-lj1-f195.google.com (mail-lj1-f195.google.com [209.85.208.195]) by imf23.hostedemail.com (Postfix) with ESMTP for ; Tue, 3 Nov 2020 22:17:39 +0000 (UTC) Received: by mail-lj1-f195.google.com with SMTP id x6so20792631ljd.3 for ; Tue, 03 Nov 2020 14:17:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=1oYKXAN5GCNK52qKASABkZS4MsOww72x3szPS4VEUtM=; b=oDO+8A43pqsEdpFwep2lqes7WkU1VVBO3F6WnCbaHxb3MX4QnoEw9cx5MceFMPFccv w/Spe4LXupBhmXcIEiHoP6MNqnoRimNc+UWR6RGvVYasygrQdgTXfWRwbY/ApwsoSKSB MOFARBshPTNfVOtqJLAArPNY7eq0fe402dEWg3GeBu21SisinttG6Ro/KF7G9Zv+51/v 8pLLm7Czirbm2NGXxg7j8H3jTEOq+YZPyih9FiXDM2bsIQ27EXa+qkaVZ3DVgMQ8kONa 1VhMutiL6QyCTzpeH21STdkZ6ab4guePdNBu6c7qjXpMHJdoth41JoReEpIEklcZa14o pIBw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=1oYKXAN5GCNK52qKASABkZS4MsOww72x3szPS4VEUtM=; b=LVysf3vj06kr4OKN83HzNSxX/rzm3+0/Gl62YvCRntPaus5jWGwHtB8wSeWpFsUvYE eJl5+WlHOOFGnYd6dDiDLSmB0uAr+8bX7edbYQELDLSf6/vlVoNlPY73bdASwqHDwqp/ i3HwMDgNX/PFsgsIk/Z8d8J3vx3JipMEdyRr4dzs3G+3a0Vn+b4QAvxmRomgQV3Y1bwa 6Xv9UxkV955ssp9yB81OcAhiopqfON4whRkJHDnGPHQVUvhtLm85OFdn4ycQxz7JuWUq sETTIml76lFBm2ThuwdkquvPPU0gdpcjjjC1OD+i+byX5dtD5EQ8Zg20ubmDQ3xt4T8D sCOA== X-Gm-Message-State: AOAM5312Zm16fj9XCEbjo+a9BxxVnC3Rov1LYj4tlU1ogGj6NjsXLjcq G7VoFa63y5Ze1F9asGIor9yR8b6M3M/kknamN3bJ0w== X-Google-Smtp-Source: ABdhPJzxANwwy8DCO260MRj79UklNQaawFfHnT4W/UwZLqOVM8XdlsOH3LfgzXzugsbmFvH5JnQM130bEYQPeCf+jqc= X-Received: by 2002:a2e:9a17:: with SMTP id o23mr10126372lji.242.1604441858170; Tue, 03 Nov 2020 14:17:38 -0800 (PST) MIME-Version: 1.0 References: <20201103175841.3495947-1-elver@google.com> <20201103175841.3495947-2-elver@google.com> In-Reply-To: <20201103175841.3495947-2-elver@google.com> From: Jann Horn Date: Tue, 3 Nov 2020 23:17:11 +0100 Message-ID: Subject: Re: [PATCH v7 1/9] mm: add Kernel Electric-Fence infrastructure To: Marco Elver Cc: Andrew Morton , Alexander Potapenko , "H . Peter Anvin" , "Paul E . McKenney" , Andrey Konovalov , Andrey Ryabinin , Andy Lutomirski , Borislav Petkov , Catalin Marinas , Christoph Lameter , Dave Hansen , David Rientjes , Dmitry Vyukov , Eric Dumazet , Greg Kroah-Hartman , Hillf Danton , Ingo Molnar , Jonathan Cameron , Jonathan Corbet , Joonsoo Kim , =?UTF-8?Q?J=C3=B6rn_Engel?= , Kees Cook , Mark Rutland , Pekka Enberg , Peter Zijlstra , SeongJae Park , Thomas Gleixner , Vlastimil Babka , Will Deacon , "the arch/x86 maintainers" , "open list:DOCUMENTATION" , kernel list , kasan-dev , Linux ARM , Linux-MM , SeongJae Park Content-Type: text/plain; charset="UTF-8" X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Nov 3, 2020 at 6:58 PM Marco Elver wrote: > This adds the Kernel Electric-Fence (KFENCE) infrastructure. KFENCE is a > low-overhead sampling-based memory safety error detector of heap > use-after-free, invalid-free, and out-of-bounds access errors. Reviewed-by: Jann Horn