linux-kernel - Re: [PATCH v3 0/5] arm64: kasan: support CONFIG_KASAN

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Message-ID: <20210319174108.GD6832@arm.com>
Date:   Fri, 19 Mar 2021 17:41:08 +0000
From:   Catalin Marinas <catalin.marinas@....com>
To:     Lecopzer Chen <lecopzer.chen@...iatek.com>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        kasan-dev@...glegroups.com, linux-arm-kernel@...ts.infradead.org,
        will@...nel.org, dan.j.williams@...el.com, aryabinin@...tuozzo.com,
        glider@...gle.com, dvyukov@...gle.com, akpm@...ux-foundation.org,
        linux-mediatek@...ts.infradead.org, yj.chiang@...iatek.com,
        ardb@...nel.org, andreyknvl@...gle.com, broonie@...nel.org,
        linux@...ck-us.net, rppt@...nel.org, tyhicks@...ux.microsoft.com,
        robin.murphy@....com, vincenzo.frascino@....com,
        gustavoars@...nel.org, lecopzer@...il.com
Subject: Re: [PATCH v3 0/5] arm64: kasan: support CONFIG_KASAN_VMALLOC

Hi Lecopzer,

On Sat, Feb 06, 2021 at 04:35:47PM +0800, Lecopzer Chen wrote:
> Linux supports KAsan for VMALLOC since commit 3c5c3cfb9ef4da9
> ("kasan: support backing vmalloc space with real shadow memory")
> 
> Acroding to how x86 ported it [1], they early allocated p4d and pgd,
> but in arm64 I just simulate how KAsan supports MODULES_VADDR in arm64
> by not to populate the vmalloc area except for kimg address.

Do you plan an update to a newer kernel like 5.12-rc3?

> Signed-off-by: Lecopzer Chen <lecopzer.chen@...iatek.com>
> Acked-by: Andrey Konovalov <andreyknvl@...gle.com>
> Tested-by: Andrey Konovalov <andreyknvl@...gle.com>
> Tested-by: Ard Biesheuvel <ardb@...nel.org>

You could move these to individual patches rather than the cover letter,
assuming that they still stand after the changes you've made. Also note
that Andrey K no longer has the @google.com email address if you cc him
on future patches (replace it with @gmail.com).

Thanks.

-- 
Catalin