From: jeffv@google.com (Jeff Vander Stoep)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64 Kconfig: Move LIST_POISON to a safe value
Date: Tue, 18 Aug 2015 12:29:37 -0700 [thread overview]
Message-ID: <1439926177-13839-1-git-send-email-jeffv@google.com> (raw)
Move the poison pointer offset to 0xdead000000000000, a
recognized value that is not mappable by user-space exploits.
Signed-off-by: Jeff Vander Stoep <jeffv@google.com>
---
arch/arm64/Kconfig | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 9532f8d..c003911 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -91,6 +91,11 @@ config NO_IOPORT_MAP
config STACKTRACE_SUPPORT
def_bool y
+config ILLEGAL_POINTER_VALUE
+ hex
+ default 0xdead000000000000
+
+
config LOCKDEP_SUPPORT
def_bool y
--
2.5.0.rc2.392.g76e840b
reply other threads:[~2015-08-18 19:29 UTC|newest]
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