Messages in this thread | | | Date | Thu, 18 Jun 2020 13:37:24 -0700 | From | Kees Cook <> | Subject | Re: [PATCH 1/2] mm: Expand CONFIG_SLAB_FREELIST_HARDENED to include SLAB and SLOB |
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On Wed, Jun 17, 2020 at 01:01:51PM -0700, Matthew Wilcox wrote: > On Wed, Jun 17, 2020 at 12:53:48PM -0700, Kees Cook wrote: > > Include SLAB and SLOB caches when performing kmem_cache pointer > > ... SLOB? Really? Objects from different kmem caches are mixed together > on the same page with SLOB (at least last time I looked). So how does > this work?
Hmm. I'm not sure. I can't even boot a SLOB kernel these days (even without these patches). But, pages are shared between kmem caches on SLOB, then I certainly can't add this check for it. :) I'll adjust this patch.
-- Kees Cook
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