* [PATCH v2] arm64 Kconfig: Move LIST_POISON to a safe value
@ 2015-08-18 19:50 Jeff Vander Stoep
2015-08-19 9:13 ` Catalin Marinas
0 siblings, 1 reply; 2+ messages in thread
From: Jeff Vander Stoep @ 2015-08-18 19:50 UTC (permalink / raw)
To: linux-arm-kernel
Move the poison pointer offset to 0xdead000000000000, a
recognized value that is not mappable by user-space exploits.
Signed-off-by: Thierry Strudel <tstrudel@google.com>
Signed-off-by: Jeff Vander Stoep <jeffv@google.com>
---
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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2015-08-18 19:50 [PATCH v2] arm64 Kconfig: Move LIST_POISON to a safe value Jeff Vander Stoep
2015-08-19 9:13 ` Catalin Marinas
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