Messages in this thread |  | | Date | Sun, 26 Jul 2015 20:42:16 +0200 (CEST) | | From | Thomas Gleixner <> | | Subject | Re: [PATCH 2/3] use POISON_POINTER_DELTA for poison pointers |
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On Sun, 26 Jul 2015, Vasily Kulikov wrote: > 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)
Acked-by: Thomas Gleixner <tglx@linutronix.de>
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