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From:   Andrey Konovalov <andreyknvl@google.com>
Date:   Wed, 11 Nov 2020 19:54:49 +0100
Message-ID: <CAAeHK+xoPQ5sVFVf2aRqcLJX8d9e7t1sNAF5F=gwTArDVN99Aw@mail.gmail.com>
Subject: Re: [PATCH v9 43/44] kasan: add documentation for hardware tag-based mode
To:     Alexander Potapenko <glider@google.com>
Cc:     Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Vincenzo Frascino <vincenzo.frascino@arm.com>,
        Dmitry Vyukov <dvyukov@google.com>,
        Andrey Ryabinin <aryabinin@virtuozzo.com>,
        Marco Elver <elver@google.com>,
        Evgenii Stepanov <eugenis@google.com>,
        Branislav Rankov <Branislav.Rankov@arm.com>,
        Kevin Brodsky <kevin.brodsky@arm.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        kasan-dev <kasan-dev@googlegroups.com>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        Linux Memory Management List <linux-mm@kvack.org>,
        LKML <linux-kernel@vger.kernel.org>
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On Wed, Nov 11, 2020 at 5:57 PM Alexander Potapenko <glider@google.com> wrote:
>
> On Tue, Nov 10, 2020 at 11:12 PM Andrey Konovalov <andreyknvl@google.com> wrote:
> >
> > Add documentation for hardware tag-based KASAN mode and also add some
> > clarifications for software tag-based mode.
> >
> > Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
> > Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
> > Reviewed-by: Marco Elver <elver@google.com>
> > ---
> > Change-Id: Ib46cb444cfdee44054628940a82f5139e10d0258
>
> > +
> > +Software tag-based KASAN currently only supports tagging of slab memory.
>
> I think the reader may confuse "slab memory" here with "memory
> returned by SLAB" (as opposed to SLUB).
> Maybe "heap memory" is less ambiguous?

I think heap memory isn't widely used in the kernel context. But I'll
clarify this part in v10, thanks!