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Subject[PATCH 2/3] use POISON_POINTER_DELTA for poison pointers
TIMER_ENTRY_STATIC and TAIL_MAPPING are defined as poison pointers which
should point to nowhere. Redefine them using POISON_POINTER_DELTA arithmetics
to make sure they really point to non-mappable area declared by the
target architecture.

Signed-off-by: Vasily Kulikov <segoon@openwall.com>
---
include/linux/poison.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/poison.h b/include/linux/poison.h
index ee697b9..a721bcd 100644
--- a/include/linux/poison.h
+++ b/include/linux/poison.h
@@ -27,14 +27,14 @@
* Magic number "tsta" to indicate a static timer initializer
* for the object debugging code.
*/
-#define TIMER_ENTRY_STATIC ((void *) 0x74737461)
+#define TIMER_ENTRY_STATIC ((void *) 0x300 + POISON_POINTER_DELTA)

/********** mm/debug-pagealloc.c **********/
#define PAGE_POISON 0xaa

/********** mm/page_alloc.c ************/

-#define TAIL_MAPPING ((void *) 0x01014A11 + POISON_POINTER_DELTA)
+#define TAIL_MAPPING ((void *) 0x400 + POISON_POINTER_DELTA)

/********** mm/slab.c **********/
/*
--
2.1.0


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