3.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jeff Vander Stoep <je...@google.com>
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 <catalin.mari...@arm.com>
Signed-off-by: Thierry Strudel <tstru...@google.com>
Signed-off-by: Jeff Vander Stoep <je...@google.com>
Signed-off-by: Will Deacon <will.dea...@arm.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
arch/arm64/Kconfig | 4 ++++
1 file changed, 4 insertions(+)
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -56,6 +56,10 @@ 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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