linux-kernel - [PATCH] arm64: update RANDOMIZE_MODULE_REGION

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Date:   Sat, 21 Nov 2020 23:08:55 -0800
From:   youngjun <her0gyugyu@...il.com>
To:     Will Deacon <will@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        youngjun <her0gyugyu@...il.com>
Subject: [PATCH] arm64: update RANDOMIZE_MODULE_REGION_FULL config description

module randomization is reduced. (range to 2 GB)
RANDOMIZE_MODULE_REGION_FULL config description is not updated.
update RANDOMIZE_MODULE_REGION_FULL config description.

Signed-off-by: youngjun <her0gyugyu@...il.com>
---
 arch/arm64/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 1515f6f153a0..0da551828a59 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1804,11 +1804,11 @@ config RANDOMIZE_BASE
 	  If unsure, say N.
 
 config RANDOMIZE_MODULE_REGION_FULL
-	bool "Randomize the module region over a 4 GB range"
+	bool "Randomize the module region over a 2 GB range"
 	depends on RANDOMIZE_BASE
 	default y
 	help
-	  Randomizes the location of the module region inside a 4 GB window
+	  Randomizes the location of the module region inside a 2 GB window
 	  covering the core kernel. This way, it is less likely for modules
 	  to leak information about the location of core kernel data structures
 	  but it does imply that function calls between modules and the core
-- 
2.17.1