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 AFF66C433DF for ; Mon, 12 Oct 2020 20:47:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 631562074F for ; Mon, 12 Oct 2020 20:47:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="bW93PBWy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731488AbgJLUrI (ORCPT ); Mon, 12 Oct 2020 16:47:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40946 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729541AbgJLUqq (ORCPT ); Mon, 12 Oct 2020 16:46:46 -0400 Received: from mail-wr1-x449.google.com (mail-wr1-x449.google.com [IPv6:2a00:1450:4864:20::449]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 621C9C0613D8 for ; Mon, 12 Oct 2020 13:46:06 -0700 (PDT) Received: by mail-wr1-x449.google.com with SMTP id p6so9295805wrm.23 for ; Mon, 12 Oct 2020 13:46:06 -0700 (PDT) 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=traBQYsXDq59+qKm3sjLr2vdah15OLSAttojnE/4vlo=; b=bW93PBWy6nemY2gKKLQnIl0lRZdoml7mRyefWR4721T7HG0oulUbLdoxcevnFAA7kg LwHbM5TCY35W8CTjz492p0Y5lDl447wvtP1+/1OQgrLuH3CgugUalCzuEDCXikOnf3oD Ok3iKXqjT8LB8NTPQXbmjzl9AtFNcA5gyOQfrdAm1hjP6gv5zVSXe0ShEAsNLq4R8h5D rwjFDxToe3PCsHZdwBM+LAPKf4qAsjeN+Y7uBBMSG8ZQD6SyadB2c7RawaFgKYu88cuB OCyyItoaODsudu6KJf0h4zJGyxfvaOc5/c6BaX6LpCQ1J576RMgRiFdoi9lfmtNPFoEM qimA== 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=traBQYsXDq59+qKm3sjLr2vdah15OLSAttojnE/4vlo=; b=dcLSFb92syaccqi23FJPiUbHt5Lto0tc2Ny9JP02LZREO6m21Di1z4YIOlz6pUXDip iDaEiYWHwVarK1cSje/3scDX8RqdhWArM41BPB5D51hv2llRlHfE81n/UUVMdBdXuZ5I ckSzSuyKZQdpf2+HnlWGnuiewpX/HMZBrP/X7VLY3pfhRYQG3gU4VfyWDq6uChL9xUz1 ecDgIVFuJzuMHHEAORhnbiKOar07fxMfqq/LhNBDeMAQBUg9kyX+TuT62mYPw9vYLArX 8vG8qSYnS5W0Gq/naIENEwjBUufN0uNcY9BBp0dMHu28Ge8c7nhYpgk6746TOZCJ0FxJ Vyvw== X-Gm-Message-State: AOAM533Y/wsg+qt2AOgguEei6TtfvVkm7mzJtLlXj909J6d6XBJetrEM WMvm+/XrRZvWRqwnPvYeI8vd5IeBsG7gVVvX X-Google-Smtp-Source: ABdhPJyNk1zfo2KZpql4kYkRkaffcHPcxvd5YlB1ciKfNhyx/rQd/2Jivu4X/alDsFB8bgyWDwncJ4My9B/GEanQ 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:a1c:a3c2:: with SMTP id m185mr10326465wme.161.1602535565034; Mon, 12 Oct 2020 13:46:05 -0700 (PDT) Date: Mon, 12 Oct 2020 22:44:36 +0200 In-Reply-To: Message-Id: <38ca7c139b94d2de5152d30496aedb0a193507a8.1602535397.git.andreyknvl@google.com> Mime-Version: 1.0 References: X-Mailer: git-send-email 2.28.0.1011.ga647a8990f-goog Subject: [PATCH v5 30/40] kasan, arm64: don't allow SW_TAGS with ARM64_MTE From: Andrey Konovalov To: Catalin Marinas , Will Deacon Cc: Vincenzo Frascino , kasan-dev@googlegroups.com, Dmitry Vyukov , Andrey Ryabinin , Alexander Potapenko , Marco Elver , Evgenii Stepanov , Elena Petrova , Branislav Rankov , Kevin Brodsky , Andrew Morton , 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 f27297ac70bf..192544fcd1a5 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 -- 2.28.0.1011.ga647a8990f-goog