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 C31A9C4346E for ; Thu, 24 Sep 2020 22:52:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 886B623A33 for ; Thu, 24 Sep 2020 22:52:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="ZQQPPgDS" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727005AbgIXWwC (ORCPT ); Thu, 24 Sep 2020 18:52:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50644 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726921AbgIXWvo (ORCPT ); Thu, 24 Sep 2020 18:51:44 -0400 Received: from mail-wm1-x34a.google.com (mail-wm1-x34a.google.com [IPv6:2a00:1450:4864:20::34a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 39867C0613D5 for ; Thu, 24 Sep 2020 15:51:44 -0700 (PDT) Received: by mail-wm1-x34a.google.com with SMTP id x81so316238wmg.8 for ; Thu, 24 Sep 2020 15:51:44 -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=jdvdUBTX2W2BS/6LXn98shgk2aR72XHwNTl4Sjd6ky0=; b=ZQQPPgDSsb+RqoQ/V3HmUYIqMU+UrlOk8tc2bUZ7rhSzWXTeSE9UL3xTph/O5JV0Xn Gd4J220+dOAYM3xd/7stx4MLA5aq4ffisUoGAU3/SNWfgKsjkON3MAa7pyZmpDE9onQj XecIfFP2Qu8yEIpTdao36Gbvd4q+30zMx/df5kjZu6Jj/ibjqcfqLLOwQ8juDuKm+ig7 YWDHJdcDPacXrGkRn6WAJhy2kISS76X8iPKtz1xPwukNUi9xOI/izZRrqFNCofqrcuGD aXA+Og8HAoq76Z4J/GLDsXuIxsBcCGO4JgWO3UvARfsE94gJB40NqaI+sKoLKkP/lVGJ 75qA== 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=jdvdUBTX2W2BS/6LXn98shgk2aR72XHwNTl4Sjd6ky0=; b=caAvWG7wFT0uHEcJFktBJ0nAGCjOVHJE2tA/RC5KdEfrAWlnNbNg2dvWyuHerd+AcJ G7hvHmmd3jsLhsY1t2OaGJucRJtLs4tPi/CZsmoIye/5b5Dp00lM9awDPRKbs2xXgw4p EEO04gWk00DksUbJrPzL0ez0vrSrL9u6znbOJUnU1DWDD/X0wQiO1eJDo6erBjxWFHBk Nwh5sYEKXCt2MuBYV2kzrXLVTiCDck2l9KOijy8bHVtbw2aF14FpKawr1RsLTj+X+vWE 3YWlZ8WgGFDgLEHpRBqQVEzHSQBWkZjBVbfXBFzDKOATOGqCQ3fb0LbJBkoGjR5VBxB6 iEyw== X-Gm-Message-State: AOAM530iHcC52JkcebIajrHvQW2x5rO175p5POC72ZKUQ5wALWcEUk5C mKI82x1rWHHuwaMCsrO5UwHAFjLVQ2HKLHCj X-Google-Smtp-Source: ABdhPJy2CZOdFXzSDMUAYWi5qsJLuL4ZWGYGgwoO+4VNTAknABxkthypQXCnRTm13gA6Hia3YIbJdc+b+9sAWjV9 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:4d0c:: with SMTP id o12mr169wmh.0.1600987902272; Thu, 24 Sep 2020 15:51:42 -0700 (PDT) Date: Fri, 25 Sep 2020 00:50:28 +0200 In-Reply-To: Message-Id: Mime-Version: 1.0 References: X-Mailer: git-send-email 2.28.0.681.g6f77f65b4e-goog Subject: [PATCH v3 21/39] kasan: 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 -- 2.28.0.681.g6f77f65b4e-goog