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=-18.9 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1,USER_IN_DEF_DKIM_WL 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 7FEAEC4727E for ; Thu, 1 Oct 2020 17:55:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4333123447 for ; Thu, 1 Oct 2020 17:55:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="RBM4/RCc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732998AbgJARzs (ORCPT ); Thu, 1 Oct 2020 13:55:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33354 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732360AbgJARzr (ORCPT ); Thu, 1 Oct 2020 13:55:47 -0400 Received: from mail-wm1-x344.google.com (mail-wm1-x344.google.com [IPv6:2a00:1450:4864:20::344]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8C747C0613D0 for ; Thu, 1 Oct 2020 10:55:47 -0700 (PDT) Received: by mail-wm1-x344.google.com with SMTP id j136so2781122wmj.2 for ; Thu, 01 Oct 2020 10:55:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=wXf2yDw1ZzKJ0lA2O+mYUFWQ3CJsg8/AyQ/IRMAajuk=; b=RBM4/RCc9JQJqoKl7RS0gHMrz6o2WGkgWjIYD22wM9haJCNIdRsAipIlXcp6sIbd3J 7LGM5NvkMNSLScthwxqoZ7SnWfnHf44jUuL9PO34KkN20ZpU74CIdCfXdg2YY+uNKuFJ FALdUCfqWGwxGw52ODzhqD0st9RUmtuf1NbBd3ts14IgD7RBJpySsdv/3j4nxdLpgMvH 9Zq+UJH+mVak0V1mwxGKXbXRa+u3s8gWSyReT2cWgPe9ZRxBwTon+acblHY+DrNcsUUo +cfvYmPsudbfJHe3em+O9CZVjnoxDjJi+zBJEITnwDHa7PLfCwzZ/kPX46F2ChPhLa8m xW4Q== 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:user-agent; bh=wXf2yDw1ZzKJ0lA2O+mYUFWQ3CJsg8/AyQ/IRMAajuk=; b=BkBVvZ67TGOsRx66hS3f08FdbWVgI6XxAQyNhsF6ZqGADOB/nKapWLXfUdlYbuLTdQ xEQsxFqSHdWpTQaxyGzNmPkk4d7g4SWKZo7KQosnyTWjHrt2WFfNYC+TwJgsb25GWwCi vq2sX/R76/4NOEfN1mztM104Q3140qPq8d+hrKVO9G3gSpwCs3DYq5BR7kIX9sHVv5RF ZFfUDIFeN2+KxWQ8UiJPM8vHU0nRA0DsyDQXfsenpmxLJmO/pAUu7fYd6SFP0Ri4maxQ IDSVXNnE2jWN+c2Y9xxuYwzTK+yGw5f2SgXdmFlbEuaygxqIPzlfhIrbHGbyuW6rGj1Y bhJw== X-Gm-Message-State: AOAM532Kr07mqv+uek4NdPhPsX6bjunbX6M3f0rYrEbRALHvl7A/L1T3 VJreGB3eY6QBz6mkCrwp95Mp/A== X-Google-Smtp-Source: ABdhPJzhCzAazXBZOMXz9D2H1FXg567NC2no+Tp5u7I1HOPVIW6DuCibV3E0GIvAkEa700+2fWLxIA== X-Received: by 2002:a05:600c:216:: with SMTP id 22mr1100906wmi.149.1601574946075; Thu, 01 Oct 2020 10:55:46 -0700 (PDT) Received: from elver.google.com ([100.105.32.75]) by smtp.gmail.com with ESMTPSA id m11sm1045183wmf.10.2020.10.01.10.55.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Oct 2020 10:55:45 -0700 (PDT) Date: Thu, 1 Oct 2020 19:55:39 +0200 From: elver@google.com To: Andrey Konovalov Cc: Dmitry Vyukov , Vincenzo Frascino , Catalin Marinas , kasan-dev@googlegroups.com, Andrey Ryabinin , Alexander Potapenko , Evgenii Stepanov , Elena Petrova , Branislav Rankov , Kevin Brodsky , Will Deacon , Andrew Morton , linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 21/39] kasan: don't allow SW_TAGS with ARM64_MTE Message-ID: <20201001175539.GQ4162920@elver.google.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.14.5 (2020-06-23) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Does that patch title need an ", arm64" in it, like the others? On Fri, Sep 25, 2020 at 12:50AM +0200, Andrey Konovalov wrote: > Software tag-based KASAN provides its own tag checking machinery that > can conflict with MTE. Don't allow enabling software tag-based KASAN > when MTE is enabled. > > Signed-off-by: Andrey Konovalov > Signed-off-by: Vincenzo Frascino > Reviewed-by: Catalin Marinas > --- > Change-Id: Icd29bd0c6b1d3d7a0ee3d50c20490f404d34fc97 > --- > arch/arm64/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > index e7450fbd0aa7..e875db8e1c86 100644 > --- a/arch/arm64/Kconfig > +++ b/arch/arm64/Kconfig > @@ -131,7 +131,7 @@ config ARM64 > select HAVE_ARCH_JUMP_LABEL > select HAVE_ARCH_JUMP_LABEL_RELATIVE > select HAVE_ARCH_KASAN if !(ARM64_16K_PAGES && ARM64_VA_BITS_48) > - select HAVE_ARCH_KASAN_SW_TAGS if HAVE_ARCH_KASAN > + select HAVE_ARCH_KASAN_SW_TAGS if (HAVE_ARCH_KASAN && !ARM64_MTE) > select HAVE_ARCH_KGDB > select HAVE_ARCH_MMAP_RND_BITS > select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT > -- > 2.28.0.681.g6f77f65b4e-goog >