On Fri, 9 Oct 2020, Kees Cook wrote: > Store the freelist pointer out of line when object_size is smaller than > sizeof(void *) and redzoning is enabled. > > (Note that no caches with such a size are known to exist in the kernel > currently.)
Ummm... The smallest allowable cache size is sizeof(void *) as I recall. mm/slab_common.c::kmem_sanity_check() checks the sizes when caches are created. NAK.
