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=-9.7 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT 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 6FEEDC38A30 for ; Tue, 21 Apr 2020 02:18:52 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 42B4E2068F for ; Tue, 21 Apr 2020 02:18:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="giSdI/O3"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=google.com header.i=@google.com header.b="rprfLeuL" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 42B4E2068F Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:To:From:Subject:References:Mime-Version :Message-Id:In-Reply-To:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=bgM+3X2hMKvnoO0pdi/feqg1ZXPJFugZfRSJvx0t5Fs=; b=giSdI/O3wqWoaz x0HfwoCgKSUsRRzol9XuOO0qFcJOVRTAh4oRWSiycFyKAZJdFgKKNQVfMbBeUY7gd7uz11ASX0jF4 i3G6YIVfJuMJH0H0VWESbLp76/C51UMNgSMEJ1IZzta//n8Vva4XE/oekqLR4agzo5XWvShTlHJgM n+P05sweBdXmVuz8S0qbqFWDnSmydQvpc56hSCdr7TMdNtYlzct+Yff15roMUPTx69uS/0y+4Zo9M 4JZn8WUIuT8mxJ1p1Uof+OwEhkgMvBcuhKv+F+tPNZZVWQTYwDo9M2H9qUqYpLdJUGR1E56OfzhE1 j3+wiC9radsUoNODhYNQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jQiUr-0004z6-7l; Tue, 21 Apr 2020 02:18:49 +0000 Received: from mail-yb1-xb4a.google.com ([2607:f8b0:4864:20::b4a]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jQiRc-0001JP-NG for linux-arm-kernel@lists.infradead.org; Tue, 21 Apr 2020 02:15:30 +0000 Received: by mail-yb1-xb4a.google.com with SMTP id u1so13936703ybm.3 for ; Mon, 20 Apr 2020 19:15:27 -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=0RQ1N542RT3QYdW6h+S0B1gn+F6MhyfTNdXGmDt/FSM=; b=rprfLeuLS2/09QHh/+y7xWTflZnqrv4ouAc/OGi0JspjqJm6eS46yKUFVvDRBA7xrD IsViCxyeg1EAE5/s87qdzXUUiSf8TnxPVsuAIEAzrr3sqXBZqrbtjCRgovWji//XWbZQ xcpiVJbVBTm7m/L4++NSnlJY0nFfQmhsqhI7X6papIZyD9mnE6qKALG0X6wbzmG68IwR NV/C9sJ2akeM/VxVHXv1UPXM8tN6ST0/kppmOPac277uAdAe7X5IMbeLQ3XxJTYzxblF bzhvQzjWFL0p41IeJx5ZGURPl6ZqYdcPqRjHl+2oWSLxp524C0oH+hXSgGEVR7rzQoiC gbPw== 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=0RQ1N542RT3QYdW6h+S0B1gn+F6MhyfTNdXGmDt/FSM=; b=D9yzv1h9aN9crZfn95kLvUudnKhZgbLN75E4WB1z57JgiV3vrg+V/pf9kbhRbwp3tR BOXbAe+43ec2uv0hEbemyuhxgZ+Y3ondOHPvq37WbQGwxpywtbS2iYkSnuivI6Ek8Foa bFEKWxanydYvjL+xkyjGwOh6OHUHqlEC9fEFF8BAFeq/wRPm3bLe1dCXVnYfbiOLUhlF QDVzp9tnxV55HEh53IJBFPtzbmzPiXhSkD2N/7bOvhMtVyRfWH3oCr+b1v/xRzFni95o 4eZnMhTs5eyOoOZRwrDb7pZUP5tHYAarLyQSqqhV30HPkCXCyEeojUjldUjMeH6AXuQ0 Jl9Q== X-Gm-Message-State: AGi0PuZ6lQRSu22QZqWcmkjc63a8fsSHchmSfX5lNUq6R/eSWH7kSoj0 mjiUH7IF0f0guUWxamkQlqtbqw04sR2Tr8R5SBc= X-Google-Smtp-Source: APiQypKVaa6EVfAXEUsgkxuszfVQpEqhSdTwtpRewqbIvj3iqtNn3hSJPBlIieXNvYTQbT7aDUwDMoQW4Qa/HRJl/w4= X-Received: by 2002:a5b:112:: with SMTP id 18mr24192885ybx.103.1587435326655; Mon, 20 Apr 2020 19:15:26 -0700 (PDT) Date: Mon, 20 Apr 2020 19:14:53 -0700 In-Reply-To: <20200421021453.198187-1-samitolvanen@google.com> Message-Id: <20200421021453.198187-13-samitolvanen@google.com> Mime-Version: 1.0 References: <20191018161033.261971-1-samitolvanen@google.com> <20200421021453.198187-1-samitolvanen@google.com> X-Mailer: git-send-email 2.26.1.301.g55bc3eb7cb9-goog Subject: [PATCH v12 12/12] efi/libstub: disable SCS From: Sami Tolvanen To: Will Deacon , Catalin Marinas , James Morse , Steven Rostedt , Ard Biesheuvel , Mark Rutland , Masahiro Yamada , Michal Marek , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200420_191528_784758_8098DA13 X-CRM114-Status: UNSURE ( 9.32 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kees Cook , Jann Horn , Marc Zyngier , kernel-hardening@lists.openwall.com, Nick Desaulniers , linux-kernel@vger.kernel.org, Ard Biesheuvel , Miguel Ojeda , Masami Hiramatsu , Sami Tolvanen , clang-built-linux@googlegroups.com, Laura Abbott , Dave Martin , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Shadow stacks are not available in the EFI stub, filter out SCS flags. Suggested-by: James Morse Signed-off-by: Sami Tolvanen Reviewed-by: Kees Cook Acked-by: Ard Biesheuvel --- drivers/firmware/efi/libstub/Makefile | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile index 094eabdecfe6..b52ae8c29560 100644 --- a/drivers/firmware/efi/libstub/Makefile +++ b/drivers/firmware/efi/libstub/Makefile @@ -32,6 +32,9 @@ KBUILD_CFLAGS := $(cflags-y) -DDISABLE_BRANCH_PROFILING \ $(call cc-option,-fno-stack-protector) \ -D__DISABLE_EXPORTS +# remove SCS flags from all objects in this directory +KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_SCS), $(KBUILD_CFLAGS)) + GCOV_PROFILE := n KASAN_SANITIZE := n UBSAN_SANITIZE := n -- 2.26.1.301.g55bc3eb7cb9-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel