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=-17.4 required=3.0 tests=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 673E5CA9ECF for ; Fri, 1 Nov 2019 22:12:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 396E0217D9 for ; Fri, 1 Nov 2019 22:12:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="o1wmzs+q" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727987AbfKAWM3 (ORCPT ); Fri, 1 Nov 2019 18:12:29 -0400 Received: from mail-pg1-f201.google.com ([209.85.215.201]:34361 "EHLO mail-pg1-f201.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727907AbfKAWM0 (ORCPT ); Fri, 1 Nov 2019 18:12:26 -0400 Received: by mail-pg1-f201.google.com with SMTP id w9so8023888pgl.1 for ; Fri, 01 Nov 2019 15:12:24 -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=RsnQ6FRofmXv+RSRylCILajHjnEectXS/G9SmKbukAo=; b=o1wmzs+qUKyvyNRJXp3X9qKqVJBTuvDks2cY0wcDPQb7bIkAGC906DDkR30LW9eQqJ zMXXLC1USMOZgspHImZJpgDDlfNKWn8CCmJRaf8YaWLWZjkkBOjbdmCWqR0xiz2Z1E8M IMXajWsM2ZNytq3YJD57+AcO0W4a4BAeYhyFET+L/KsEcCvEEvcQIkNw9qARaUd3IBj+ ++FoWxR12a+dlSA/MO5FA1lV1Ulde6ProNs5GbCiHu4RxgZbton9GSSH46BCYxqtL4td jIGaL3F6B2fs+2u9hLh0hFh84welR9hB0LYDeiGk0rmXfYPzPJvvptVVG6q7/+epyQDG 9jJQ== 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=RsnQ6FRofmXv+RSRylCILajHjnEectXS/G9SmKbukAo=; b=YXwumZVQlLWViwvUPVSmPQA07dbQPsJV3ID5FgfB0rykFFy0TkPfnvtGWrvXZZWUt0 xmDaM80uKGUWJaH6GYUziFbPBUVLlZ/t9bvkB/AFWKA9ll70tXcFpSqHf8Iaohs4jHZ5 09nq9kzVBH9NugU7jYLnYZQfGfpzbmTtfiqjotGakacB1j7YSBJUeUG1PD443AacEu1e s5Qf1gkU2D6IkuphKfii0vlx0qQDq8GKbiUY4Oa2tpA3whxZexq28/NIWiygK6K3r2nQ SJ9PIAxtkg80gsOoz0HMvVShiONB6NnoBwpLRUhK2RCUY7F+KvOZ9+DVGziBb3iF7StC v5GQ== X-Gm-Message-State: APjAAAVnG/NamYKqi8/kzl46tHWcysCXmTz+Hda0LcGLpFoBZ3vEHjlI swSCCFmE1vXv3uEW3w7222p6Bh+gMStF5Z/9Sr8= X-Google-Smtp-Source: APXvYqy8xknc+AggluM5pslguFgR4jRQWMnOnFZJmuiy7zcx6A+OMKobqQMh8kuVoFD8eIIYYvO3uXQeHJhmKYfS7dA= X-Received: by 2002:a63:8f12:: with SMTP id n18mr1357176pgd.340.1572646343780; Fri, 01 Nov 2019 15:12:23 -0700 (PDT) Date: Fri, 1 Nov 2019 15:11:44 -0700 In-Reply-To: <20191101221150.116536-1-samitolvanen@google.com> Message-Id: <20191101221150.116536-12-samitolvanen@google.com> Mime-Version: 1.0 References: <20191018161033.261971-1-samitolvanen@google.com> <20191101221150.116536-1-samitolvanen@google.com> X-Mailer: git-send-email 2.24.0.rc1.363.gb1bccd3e3d-goog Subject: [PATCH v4 11/17] arm64: disable function graph tracing with SCS From: Sami Tolvanen To: Will Deacon , Catalin Marinas , Steven Rostedt , Masami Hiramatsu , Ard Biesheuvel Cc: Dave Martin , Kees Cook , Laura Abbott , Mark Rutland , Marc Zyngier , Nick Desaulniers , Jann Horn , Miguel Ojeda , Masahiro Yamada , clang-built-linux@googlegroups.com, kernel-hardening@lists.openwall.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Sami Tolvanen 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 With CONFIG_FUNCTION_GRAPH_TRACER, function return addresses are modified in ftrace_graph_caller and prepare_ftrace_return to redirect control flow to ftrace_return_to_handler. This is incompatible with SCS. Signed-off-by: Sami Tolvanen Reviewed-by: Kees Cook --- arch/arm64/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index e7b57a8a5531..42867174920f 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -148,7 +148,7 @@ config ARM64 select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_ERROR_INJECTION - select HAVE_FUNCTION_GRAPH_TRACER + select HAVE_FUNCTION_GRAPH_TRACER if !SHADOW_CALL_STACK select HAVE_GCC_PLUGINS select HAVE_HW_BREAKPOINT if PERF_EVENTS select HAVE_IRQ_TIME_ACCOUNTING -- 2.24.0.rc1.363.gb1bccd3e3d-goog 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=-9.8 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 9ADD3CA9ECF for ; 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Fri, 01 Nov 2019 15:12:23 -0700 (PDT) Date: Fri, 1 Nov 2019 15:11:44 -0700 In-Reply-To: <20191101221150.116536-1-samitolvanen@google.com> Message-Id: <20191101221150.116536-12-samitolvanen@google.com> Mime-Version: 1.0 References: <20191018161033.261971-1-samitolvanen@google.com> <20191101221150.116536-1-samitolvanen@google.com> X-Mailer: git-send-email 2.24.0.rc1.363.gb1bccd3e3d-goog Subject: [PATCH v4 11/17] arm64: disable function graph tracing with SCS From: Sami Tolvanen To: Will Deacon , Catalin Marinas , Steven Rostedt , Masami Hiramatsu , Ard Biesheuvel X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191101_151226_070760_529073E5 X-CRM114-Status: GOOD ( 10.63 ) 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: Mark Rutland , Kees Cook , Jann Horn , Masahiro Yamada , Marc Zyngier , kernel-hardening@lists.openwall.com, Nick Desaulniers , linux-kernel@vger.kernel.org, Miguel Ojeda , clang-built-linux@googlegroups.com, Sami Tolvanen , 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 With CONFIG_FUNCTION_GRAPH_TRACER, function return addresses are modified in ftrace_graph_caller and prepare_ftrace_return to redirect control flow to ftrace_return_to_handler. This is incompatible with SCS. Signed-off-by: Sami Tolvanen Reviewed-by: Kees Cook --- arch/arm64/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index e7b57a8a5531..42867174920f 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -148,7 +148,7 @@ config ARM64 select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_ERROR_INJECTION - select HAVE_FUNCTION_GRAPH_TRACER + select HAVE_FUNCTION_GRAPH_TRACER if !SHADOW_CALL_STACK select HAVE_GCC_PLUGINS select HAVE_HW_BREAKPOINT if PERF_EVENTS select HAVE_IRQ_TIME_ACCOUNTING -- 2.24.0.rc1.363.gb1bccd3e3d-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel 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=-17.4 required=3.0 tests=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 E60C0CA9ECF for ; Fri, 1 Nov 2019 22:13:54 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id 38B362085B for ; Fri, 1 Nov 2019 22:13:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="o1wmzs+q" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 38B362085B Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernel-hardening-return-17242-kernel-hardening=archiver.kernel.org@lists.openwall.com Received: (qmail 1322 invoked by uid 550); 1 Nov 2019 22:12:36 -0000 Mailing-List: contact kernel-hardening-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Received: (qmail 1233 invoked from network); 1 Nov 2019 22:12:35 -0000 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=RsnQ6FRofmXv+RSRylCILajHjnEectXS/G9SmKbukAo=; b=o1wmzs+qUKyvyNRJXp3X9qKqVJBTuvDks2cY0wcDPQb7bIkAGC906DDkR30LW9eQqJ zMXXLC1USMOZgspHImZJpgDDlfNKWn8CCmJRaf8YaWLWZjkkBOjbdmCWqR0xiz2Z1E8M IMXajWsM2ZNytq3YJD57+AcO0W4a4BAeYhyFET+L/KsEcCvEEvcQIkNw9qARaUd3IBj+ ++FoWxR12a+dlSA/MO5FA1lV1Ulde6ProNs5GbCiHu4RxgZbton9GSSH46BCYxqtL4td jIGaL3F6B2fs+2u9hLh0hFh84welR9hB0LYDeiGk0rmXfYPzPJvvptVVG6q7/+epyQDG 9jJQ== 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=RsnQ6FRofmXv+RSRylCILajHjnEectXS/G9SmKbukAo=; b=l2Q7U9NAXbNnI+kcz69eEvP5AoMdsppwE5jr/DNILkQPppypdfM0n7gf67YoOQx2Ro cMBuZ4IxhBrMKxEwrxbtIa5mG6G89+rjokLL6vMZ8ZHymYwySMj2tmKb55YMLe7t1xrG CLvIhQ4SpzxNPyHY2M4l7YgjzFZXXKpSpqEQQuLblBkFPq3i0B7wBM2LLPTwShcK57tF d1xG3yRYyYH3eyh/0K0NSFDo6vNXq8LSY0nDiHAEEdbk4TnqQF51g31/8uNqBgyvlaFl hqaIZRSfmKLWewp9B07LlzaEDByicdECqBEKD1Trcvj3WE3PR0BOFy2Bn9ilzh0Qvo35 mTZw== X-Gm-Message-State: APjAAAWV9gB1De38SkPjdYmSgXFO7z7ziILVior0LeSbTPgB4L8nLqgh 1GM1eMJBKybkJTMZQtuu944Sv++9yeXKyE8wymU= X-Google-Smtp-Source: APXvYqy8xknc+AggluM5pslguFgR4jRQWMnOnFZJmuiy7zcx6A+OMKobqQMh8kuVoFD8eIIYYvO3uXQeHJhmKYfS7dA= X-Received: by 2002:a63:8f12:: with SMTP id n18mr1357176pgd.340.1572646343780; Fri, 01 Nov 2019 15:12:23 -0700 (PDT) Date: Fri, 1 Nov 2019 15:11:44 -0700 In-Reply-To: <20191101221150.116536-1-samitolvanen@google.com> Message-Id: <20191101221150.116536-12-samitolvanen@google.com> Mime-Version: 1.0 References: <20191018161033.261971-1-samitolvanen@google.com> <20191101221150.116536-1-samitolvanen@google.com> X-Mailer: git-send-email 2.24.0.rc1.363.gb1bccd3e3d-goog Subject: [PATCH v4 11/17] arm64: disable function graph tracing with SCS From: Sami Tolvanen To: Will Deacon , Catalin Marinas , Steven Rostedt , Masami Hiramatsu , Ard Biesheuvel Cc: Dave Martin , Kees Cook , Laura Abbott , Mark Rutland , Marc Zyngier , Nick Desaulniers , Jann Horn , Miguel Ojeda , Masahiro Yamada , clang-built-linux@googlegroups.com, kernel-hardening@lists.openwall.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Sami Tolvanen Content-Type: text/plain; charset="UTF-8" With CONFIG_FUNCTION_GRAPH_TRACER, function return addresses are modified in ftrace_graph_caller and prepare_ftrace_return to redirect control flow to ftrace_return_to_handler. This is incompatible with SCS. Signed-off-by: Sami Tolvanen Reviewed-by: Kees Cook --- arch/arm64/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index e7b57a8a5531..42867174920f 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -148,7 +148,7 @@ config ARM64 select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_ERROR_INJECTION - select HAVE_FUNCTION_GRAPH_TRACER + select HAVE_FUNCTION_GRAPH_TRACER if !SHADOW_CALL_STACK select HAVE_GCC_PLUGINS select HAVE_HW_BREAKPOINT if PERF_EVENTS select HAVE_IRQ_TIME_ACCOUNTING -- 2.24.0.rc1.363.gb1bccd3e3d-goog