3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jeff Vander Stoep <[email protected]>

commit bf0c4e04732479f650ff59d1ee82de761c0071f0 upstream.

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

Acked-by: Catalin Marinas <[email protected]>
Signed-off-by: Thierry Strudel <[email protected]>
Signed-off-by: Jeff Vander Stoep <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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

--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -68,6 +68,10 @@ config NO_IOPORT
 config STACKTRACE_SUPPORT
        def_bool y
 
+config ILLEGAL_POINTER_VALUE
+       hex
+       default 0xdead000000000000
+
 config LOCKDEP_SUPPORT
        def_bool y
 


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