linux-kernel - Re: [PATCH] slub: choose the right freelist pointer location when creating small caches

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Message-ID: <202106081140.F73F91F@keescook>
Date:   Tue, 8 Jun 2021 11:41:26 -0700
From:   Kees Cook <keescook@...omium.org>
To:     "Lin, Zhenpeng" <zplin@....edu>
Cc:     Christoph Lameter <cl@...ux.com>,
        Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] slub: choose the right freelist pointer location when
 creating small caches

On Tue, Jun 08, 2021 at 06:33:01PM +0000, Lin, Zhenpeng wrote:
> There do exist objects whose size is smaller than 2*sizeof(void*). E.g. struct ccid in DCCP module.

Yes, sorry, I meant sizeof(void *). I've sent an updated v4 series and
CCed you. Are you able to test that and see if it fixes it for you too?

Thanks for the push to dust this series off again! :)

-Kees

-- 
Kees Cook