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=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 4323BC4741F for ; Thu, 1 Oct 2020 23:12:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0EF0620739 for ; Thu, 1 Oct 2020 23:12:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="swpCHanQ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387632AbgJAXMJ (ORCPT ); Thu, 1 Oct 2020 19:12:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53962 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733304AbgJAXLi (ORCPT ); Thu, 1 Oct 2020 19:11:38 -0400 Received: from mail-wr1-x44a.google.com (mail-wr1-x44a.google.com [IPv6:2a00:1450:4864:20::44a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 83FC1C0613E2 for ; Thu, 1 Oct 2020 16:11:36 -0700 (PDT) Received: by mail-wr1-x44a.google.com with SMTP id l17so122019wrw.11 for ; Thu, 01 Oct 2020 16:11:36 -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=aHaqAGqhe3K0FS7ZJWcfKrDk8FNnWGrH4p9dPgIlLEI=; b=swpCHanQu+SIMdswJvXXsZIRikWVSUrn2FQJLU3wNZBPI4HVsaKL3t4VdXVwuVb4fB dzkLUJsvjXmQ+/qxCEK+gFX6rqTqAduNE3nDGUWob1pOOCpKnAwLA6x2Kyct2217Q1jJ Cf+kzK2wmXXBh8mN14fDhrJr8btdSXRUBN7Evr93IDmIEFp+8qal4NH5zQzRK94hwodO A0LVAPrY/rp7eN24CyIidHHJPeoxxXhxHh8XIQRwqHj7Cy/nt9bH3Ko/6lBgHF8P+2k/ DFHeQQg6d2qHUThzm2rbxYA4j0HFeY9H7eN4p6T/P4ma2r8xbC+HjXGJkUbiXcqYE4x5 BOCw== 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=aHaqAGqhe3K0FS7ZJWcfKrDk8FNnWGrH4p9dPgIlLEI=; b=BxGjrrNXweb6MObuE6aE/QahNivBqP86IiozfiASzPW/yqZm931nP9L+OQCFY8ZdnI viOJ05fg3jJQD/uuqcofZRjV13od2+lWA/v7Hcsr1nkq7VPnZM7zKeLnnDURki9DPM84 nITDbJpbK1jgL7+Y1DdxDS9itaa2HfiBe1Y96aROxhZJ7XeAWsQ79+xfrQDl2605Oniz NnBCVW4JBw98LLReZs/LFG/UMt+j+9PR8gpoQlzUlQR3ZBWZlYCZaPPXtnhqm4kR2kEF w/pHPBaDfJfA7mc4ZoTDaUgmCkBRysLKtcoZT6dpzf5L9W8DlofxcDxpukTRDtAM1M0x eFxQ== X-Gm-Message-State: AOAM532nvy6LL6ZhrEgsvqlFCNJ6dpdV4/3nybog4EjnVMyo80WW+gD7 VuLI86v9wQSlQmB38A58zS3AqFSfFqwfUvxU X-Google-Smtp-Source: ABdhPJxLHS3PMbQxWIVzTKDBezKc6BJJRo1SnHumrFYMTaLxEK2aJwvkr072kiNzKD7DB3HQx9ZzMqtnLJ81bKYi 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:a05:600c:2053:: with SMTP id p19mr2326483wmg.50.1601593895081; Thu, 01 Oct 2020 16:11:35 -0700 (PDT) Date: Fri, 2 Oct 2020 01:10:22 +0200 In-Reply-To: Message-Id: Mime-Version: 1.0 References: X-Mailer: git-send-email 2.28.0.709.gb0816b6eb0-goog Subject: [PATCH v4 21/39] kasan, arm64: don't allow SW_TAGS with ARM64_MTE From: Andrey Konovalov To: Dmitry Vyukov , Vincenzo Frascino , Catalin Marinas , kasan-dev@googlegroups.com Cc: Andrey Ryabinin , Alexander Potapenko , Marco Elver , 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, 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 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 -- 2.28.0.709.gb0816b6eb0-goog