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[23.128.96.18]) by mx.google.com with ESMTP id dn14si5728280edb.558.2020.08.14.10.31.13; Fri, 14 Aug 2020 10:31:36 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=MpeccDbA; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728723AbgHNR2U (ORCPT + 99 others); Fri, 14 Aug 2020 13:28:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37534 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728703AbgHNR2K (ORCPT ); Fri, 14 Aug 2020 13:28:10 -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 4D716C061385 for ; Fri, 14 Aug 2020 10:28:10 -0700 (PDT) Received: by mail-wr1-x449.google.com with SMTP id j2so3610474wrr.14 for ; Fri, 14 Aug 2020 10:28:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=zi4RvguO5V6krMCBAUSDmKnZjdOOk8JOKWNtsbuVl1k=; b=MpeccDbAmyi9zM+1C8dkn9B/K4wceTNQ+tgcRDm6+AgQur9nWRGo8BEGb8+vArokqc IW2bWkZP3jiKyf9bYyFJBUkxRKVAf2Q++mSmPf6yMZGRtTtBdzg3pRP6EQFuJXfkLvpX eB+KAJ1HEYfvJOrMIUN4mgwLwhTY0ol+7kOJqYVCAIGbkauE3yWAQuQZYOvYx3rSLbhl NmUGdNfY8bwRRHD1QQ03HPw64mDJ8yz0ultoUUq2xTqHAKzpqdv7kojqWmoGjQkfzwuc 0ynqhDy7TcxwWoXQTproKjfj5IP6dX/0XwWTdaSRRnQ3wR7gGzf+ZlydxaY0zVve9rQf oFIA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=zi4RvguO5V6krMCBAUSDmKnZjdOOk8JOKWNtsbuVl1k=; b=k+wMiZoGWcYbVLlxug7qPOyCtjNp/48mO/qNf6M0kTB7NRCMPbhlAeLVr3H8YWRrtH fJKz2krprF19zQUv156VozNQRwVxXV2PVly+bBKEqkYu7JxnxyRF+9QhgG8ADnDLW3Nz //eRj1BT4dQP/m0hcCNqflQCmi3fB6L2ro8MDWh9NRzAbke3GAcmWQfwdj1M4gZTEqPV h94Omn39I+hcombJ6injT2CPDs6ElBcajPQmK82zM5qUo3Nt020VWpUGf4/znAzcj5IS LuoLS7IRJk++SGGDAxw4SXdb9B1PXhtJkyFiWe/2guLIgSYMayGPxXoPnKGdSldmePUq btoA== X-Gm-Message-State: AOAM533URDkS1MTiUBbTZc9W4e3D6nXjskRVdePltFInNJaeg5nY8/CY aJUXPMATLa2LE7A9rhZvTN95Ut9UoEVXvF17 X-Received: by 2002:a7b:c219:: with SMTP id x25mr3405298wmi.101.1597426088961; Fri, 14 Aug 2020 10:28:08 -0700 (PDT) Date: Fri, 14 Aug 2020 19:27:01 +0200 In-Reply-To: Message-Id: <5185661d553238884613a432cf1d71b1480a23ba.1597425745.git.andreyknvl@google.com> Mime-Version: 1.0 References: X-Mailer: git-send-email 2.28.0.220.ged08abb693-goog Subject: [PATCH 19/35] 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" Sender: linux-kernel-owner@vger.kernel.org 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 --- lib/Kconfig.kasan | 1 + 1 file changed, 1 insertion(+) diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan index b4cf6c519d71..e500c18cbe79 100644 --- a/lib/Kconfig.kasan +++ b/lib/Kconfig.kasan @@ -69,6 +69,7 @@ config KASAN_GENERIC config KASAN_SW_TAGS bool "Software tag-based mode" depends on HAVE_ARCH_KASAN_SW_TAGS && CC_HAS_KASAN_SW_TAGS + depends on !ARM64_MTE help Enables software tag-based KASAN mode. -- 2.28.0.220.ged08abb693-goog