[PATCH v2] arm64 Kconfig: Move LIST_POISON to a safe value

From: Jeff Vander Stoep
Date: Tue Aug 18 2015 - 15:50:23 EST


Move the poison pointer offset to 0xdead000000000000, a
recognized value that is not mappable by user-space exploits.

Signed-off-by: Thierry Strudel <tstrudel@xxxxxxxxxx>
Signed-off-by: Jeff Vander Stoep <jeffv@xxxxxxxxxx>
---
v2 removes an extra newline.

arch/arm64/Kconfig | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 318175f..8f1789c 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -104,6 +104,10 @@ config NO_IOPORT_MAP
config STACKTRACE_SUPPORT
def_bool y

+config ILLEGAL_POINTER_VALUE
+ hex
+ default 0xdead000000000000
+
config LOCKDEP_SUPPORT
def_bool y

--
2.5.0.276.gf5e568e

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