Groups > linux.kernel > #1320668

Re: [PATCH v1 2/8] mm, kasan: SLAB support

From	Alexander Potapenko <glider@google.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v1 2/8] mm, kasan: SLAB support
Date	2016-01-28 14:30 +0100
Message-ID	<qVUO5-3Yo-1@gated-at.bofh.it> (permalink)
References	<qVD0R-7IE-5@gated-at.bofh.it> <qVD0S-7IE-23@gated-at.bofh.it> <qVPv3-9y-1@gated-at.bofh.it> <qVUO5-3Yo-3@gated-at.bofh.it>
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On Thu, Jan 28, 2016 at 1:37 PM, Alexander Potapenko <glider@google.com> wrote:
>
> On Jan 28, 2016 8:44 AM, "Joonsoo Kim" <iamjoonsoo.kim@lge.com> wrote:
>>
>> On Wed, Jan 27, 2016 at 07:25:07PM +0100, Alexander Potapenko wrote:
>> > 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 ++-
>>
>> ...
>>
>> > +#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.
(resending to linux-kernel@ because the previous mail bounced)


-- 
Alexander Potapenko
Software Engineer

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Thread

Re: [PATCH v1 2/8] mm, kasan: SLAB support Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2016-01-28 08:50 +0100
  Re: [PATCH v1 2/8] mm, kasan: SLAB support Alexander Potapenko <glider@google.com> - 2016-01-28 14:30 +0100
    Re: [PATCH v1 2/8] mm, kasan: SLAB support Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2016-02-01 03:20 +0100

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