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=-20.4 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_GIT,USER_IN_DEF_DKIM_WL 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 04E27C55ABD for ; Tue, 10 Nov 2020 22:13:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B22C820637 for ; Tue, 10 Nov 2020 22:13:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="N+EE4tAa" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733118AbgKJWNv (ORCPT ); Tue, 10 Nov 2020 17:13:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48478 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731907AbgKJWMH (ORCPT ); Tue, 10 Nov 2020 17:12:07 -0500 Received: from mail-ej1-x64a.google.com (mail-ej1-x64a.google.com [IPv6:2a00:1450:4864:20::64a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CD3A3C0613D1 for ; Tue, 10 Nov 2020 14:12:05 -0800 (PST) Received: by mail-ej1-x64a.google.com with SMTP id e9so22080ejb.16 for ; Tue, 10 Nov 2020 14:12:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=Pg6PJaVDUkAITFjkMU6ng0d8HxlghasMrqy2nxiQARg=; b=N+EE4tAaZWyBdZ5DiXHWZpSJp8Nle0s95seQ+AN71cupw7jOVnCpnB+57fO5p11qQw NOqjGDLxKaMUNUrdnzVgdtKXagIpv3kt8kv8FmZDaBMzNAuU30Es9QMLoZSckPmlLOIZ n9wFGp9vfEkKNf2+PxPbECtpMTuDbXZR9A3SoUI5K79S+nnRQItz63jv4+1uuNsQhGfl Gmpw4s5LnA5xBF28wa28kmwMLpz9kMLagixOYxWiZIWOTvP/o/WwswbMC5JfQ1ilJ67j iy/GvPrll7ccA0ltjQWNiFbghcjwYHY7u29dx6CXcgWKABoOI9igHKUM78lLvnXARjav uz3w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=Pg6PJaVDUkAITFjkMU6ng0d8HxlghasMrqy2nxiQARg=; b=aJjFiK9c4aCPZPrNu209DFww+HCXkz/EEZ35ceKKU95b+cama1DRiC7Tc55N1pBmre +B/HJPmuAYM+ET/ttG/4n8WpsTzxueZ6h8Pn9nUf35/00D7Qyu4v9fclmNSt/qK6lMsW 9EP0yJnFZUbbyf5XQg9AGhS+TI+s16OsOQTN97B9m/r9K4cXTlFA34T+gbhQISQgdCqc jftdPwyKWokdNkUSEwAHTRgKpe+NV0qknk2o4GHJbgBJBbZpoySSOzkn85B6QftISYwd Iilr6gSfUKIu/CapThNgym4hA1UXFViZuLVS8izz1IeumcYJto979+o3JTtQpTIxANUd nyRw== X-Gm-Message-State: AOAM531IzIOhowPQAFTUwjF7fFOnVHK59yML5GcEACsGQzVqhirfnN6r gu3jzfgl1NVdcAjkHnyJKejDpKd9rZmH6qzg X-Google-Smtp-Source: ABdhPJzGlB7rJVf5/zTLMwiVrmTH5i8CIP9E0LbpZaVUCC9JCVO92ec3hheCVddG7JN0TUWg8SAPkiySAFIjtZaS Sender: "andreyknvl via sendgmr" X-Received: from andreyknvl3.muc.corp.google.com ([2a00:79e0:15:13:7220:84ff:fe09:7e9d]) (user=andreyknvl job=sendgmr) by 2002:a05:6402:1a33:: with SMTP id be19mr1661521edb.47.1605046324324; Tue, 10 Nov 2020 14:12:04 -0800 (PST) Date: Tue, 10 Nov 2020 23:10:21 +0100 In-Reply-To: Message-Id: <67c17dafa28036b628234c8f1d88368af374449c.1605046192.git.andreyknvl@google.com> Mime-Version: 1.0 References: X-Mailer: git-send-email 2.29.2.222.g5d2a92d10f8-goog Subject: [PATCH v9 24/44] kasan, arm64: don't allow SW_TAGS with ARM64_MTE From: Andrey Konovalov To: Catalin Marinas Cc: Will Deacon , Vincenzo Frascino , Dmitry Vyukov , Andrey Ryabinin , Alexander Potapenko , Marco Elver , Evgenii Stepanov , Branislav Rankov , Kevin Brodsky , Andrew Morton , kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrey Konovalov Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 1515f6f153a0..25ead11074bf 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -134,7 +134,7 @@ 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 -- 2.29.2.222.g5d2a92d10f8-goog