Messages in this thread | | | Date | Wed, 9 Jul 2014 09:26:03 -0500 (CDT) | From | Christoph Lameter <> | Subject | Re: [RFC/PATCH RESEND -next 01/21] Add kernel address sanitizer infrastructure. |
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On Wed, 9 Jul 2014, Andrey Ryabinin wrote:
> + > +Markers of unaccessible bytes could be found in mm/kasan/kasan.h header: > + > +#define KASAN_FREE_PAGE 0xFF /* page was freed */ > +#define KASAN_PAGE_REDZONE 0xFE /* redzone for kmalloc_large allocations */ > +#define KASAN_SLAB_REDZONE 0xFD /* Slab page redzone, does not belong to any slub object */
We call these zones "PADDING". Redzones are associated with an object. Padding is there because bytes are left over, unusable or necessary for alignment.
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