On Jan 28, 2016 8:44 AM, "Joonsoo Kim" [off-list ref] wrote:

On Wed, Jan 27, 2016 at 07:25:07PM +0100, Alexander Potapenko wrote:

quoted

This patch adds KASAN hooks to SLAB allocator.

This patch is based on the "mm: kasan: unified support for SLUB and
SLAB allocators" patch originally prepared by Dmitry Chernenkov.

Signed-off-by: Alexander Potapenko <glider@google.com>
---
 Documentation/kasan.txt  |  5 ++-

...

quoted

+#ifdef CONFIG_SLAB
+struct kasan_alloc_meta *get_alloc_info(struct kmem_cache *cache,
+                                     const void *object)
+{
+     return (void *)object + cache->kasan_info.alloc_meta_offset;
+}
+
+struct kasan_free_meta *get_free_info(struct kmem_cache *cache,
+                                   const void *object)
+{
+     return (void *)object + cache->kasan_info.free_meta_offset;
+}
+#endif

I cannot find the place to store stack info for free. get_free_info()
isn't used except print_object(). Plese let me know where.

This is covered by other patches in this patchset.

Thanks.