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. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>