linux-hardening - Re: [RFC PATCH 00/14] Prevent cross-cache attacks in the SLUB allocator

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Message-ID: <7a4f5128-28fd-3c5f-34c2-1c34f4448174@intel.com>
Date:   Fri, 15 Sep 2023 08:19:28 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     Matteo Rizzo <matteorizzo@...gle.com>, cl@...ux.com,
        penberg@...nel.org, rientjes@...gle.com, iamjoonsoo.kim@....com,
        akpm@...ux-foundation.org, vbabka@...e.cz,
        roman.gushchin@...ux.dev, 42.hyeyoo@...il.com,
        keescook@...omium.org, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-mm@...ck.org,
        linux-hardening@...r.kernel.org, tglx@...utronix.de,
        mingo@...hat.com, bp@...en8.de, dave.hansen@...ux.intel.com,
        x86@...nel.org, hpa@...or.com, corbet@....net, luto@...nel.org,
        peterz@...radead.org
Cc:     jannh@...gle.com, evn@...gle.com, poprdi@...gle.com,
        jordyzomer@...gle.com
Subject: Re: [RFC PATCH 00/14] Prevent cross-cache attacks in the SLUB
 allocator

On 9/15/23 03:59, Matteo Rizzo wrote:
> The goal of this patch series is to deterministically prevent cross-cache
> attacks in the SLUB allocator.

What's the cost?