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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=oB4lIvjzdBiHgRAUphuiQVPgI+jp2K5bMoUCGUiH4hk=; b=koNCViWKPfRdWZJ1RLbdxj42rNtUSG9oP0CC0AgJ9u6i1cbUM6yJgu+0ZTaynXyFc2 3B919XE/jKlgHnSE6efSX5JO+InV+293VfBAMMg7vD4wWg58SN0IX8k/M3bBwvfOCB9x EVtgfKIO2Zl6VIel1DBbDxl0/3witJM9UQEgygz69wWWFlF12jhWNzNRjP0rUiX8I36w rz6J0PhdXiksqfQQUym8CPPOixmwwtvtvyHsFazq/WXjEduGOjhV+hBe4yKr2nSBDvhW lfg0U17P09EogJECAg82JdJDrWQS+ceuI2foIl73DNez6Ela0mAy5bL0S31552TZWwsD pdWA== X-Gm-Message-State: APjAAAXaSPHVHCSvyP6MX/8J9UleEa98XCZ8d6CH4A2SrtVl1tH/NVMx VyprIUQ2W54WEYw+QAU9AqYUl/7Z4YIH8jpf+78= X-Google-Smtp-Source: APXvYqzD4X/kPtbk+w3gExO5Bezjz7X/3F/Tl84XtD5Pt1TYYSMyOibW/2GJGTtsQO1axnooT5H2E3H7HeWsFEsu76A= X-Received: by 2002:ac8:4543:: with SMTP id z3mr20376230qtn.41.1572998208364; Tue, 05 Nov 2019 15:56:48 -0800 (PST) Date: Tue, 5 Nov 2019 15:56:06 -0800 In-Reply-To: <20191105235608.107702-1-samitolvanen@google.com> Message-Id: <20191105235608.107702-13-samitolvanen@google.com> Mime-Version: 1.0 References: <20191018161033.261971-1-samitolvanen@google.com> <20191105235608.107702-1-samitolvanen@google.com> X-Mailer: git-send-email 2.24.0.rc1.363.gb1bccd3e3d-goog Subject: [PATCH v5 12/14] arm64: vdso: disable Shadow Call Stack 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-20191105_155650_468379_D57F9F10 X-CRM114-Status: GOOD ( 10.71 ) 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 Shadow stacks are only available in the kernel, so disable SCS instrumentation for the vDSO. Signed-off-by: Sami Tolvanen Reviewed-by: Nick Desaulniers Reviewed-by: Kees Cook --- arch/arm64/kernel/vdso/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile index dd2514bb1511..a87a4f11724e 100644 --- a/arch/arm64/kernel/vdso/Makefile +++ b/arch/arm64/kernel/vdso/Makefile @@ -25,7 +25,7 @@ ccflags-y += -DDISABLE_BRANCH_PROFILING VDSO_LDFLAGS := -Bsymbolic -CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) -Os +CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) -Os $(CC_FLAGS_SCS) KBUILD_CFLAGS += $(DISABLE_LTO) KASAN_SANITIZE := n UBSAN_SANITIZE := n -- 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