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| author | Vasily Kulikov <segoon@openwall.com> | 2015-09-23 09:04:31 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2015-09-23 09:04:31 +1000 |
| commit | 773675fcff91d5297091a92e3e5da90b8986de5d (patch) | |
| tree | 7363821e8d28847421747dba63c02a1477dca00d | |
| parent | c4599630d417d6bf9067d5019dc17b4a7d40fc49 (diff) | |
| download | linux-773675fcff91d5297091a92e3e5da90b8986de5d.tar.gz linux-773675fcff91d5297091a92e3e5da90b8986de5d.tar.xz | |
include/linux/poison.h: 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>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Solar Designer <solar@openwall.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | include/linux/poison.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/poison.h b/include/linux/poison.h index 76c3b6c38c16..4a27153574e2 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 **********/ /* |