linux-kernel - [PATCH v2] arm64: defconfig: enable CONFIG_RANDOMIZE

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Date:   Mon, 24 Jun 2019 10:58:50 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     catalin.marinas@....com, will.deacon@....com
Cc:     ard.biesheuvel@...aro.org, broonie@...nel.org,
        mark.rutland@....com, keescook@...gle.com, samitolvanen@...gle.com,
        jeffv@...gle.com, shawnguo@...nel.org,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Will Deacon <will@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Jagan Teki <jagan@...rulasolutions.com>,
        Andy Gross <andy.gross@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Dinh Nguyen <dinguyen@...nel.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] arm64: defconfig: enable CONFIG_RANDOMIZE_BASE

For testing coverage and improved defense in depth, enable KASLR by
default.

Acked-by: Ard Biesheuvel <ard.biesheuvel@...aro.org>
Acked-by: Will Deacon <will@...nel.org>
Reviewed-by: Kees Cook <keescook@...omium.org>
Suggested-by: Arnd Bergmann <arnd@...db.de>
Suggested-by: Olof Johansson <olof@...om.net>
Signed-off-by: Nick Desaulniers <ndesaulniers@...gle.com>
---
Changes v1 -> v2:
* drop other hunks as per Olof and Will
* Collect Acks/Reviewed-by
* Add Arnd and Olof's suggested by
* rewrite commit message

 arch/arm64/configs/defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 4d583514258c..a7cbf7cd84b4 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -68,6 +68,7 @@ CONFIG_KEXEC=y
 CONFIG_CRASH_DUMP=y
 CONFIG_XEN=y
 CONFIG_COMPAT=y
+CONFIG_RANDOMIZE_BASE=y
 CONFIG_HIBERNATION=y
 CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y
 CONFIG_ARM_CPUIDLE=y
-- 
2.22.0.410.gd8fdbe21b5-goog