linux-kernel - Re: [PATCH v4 5/6] riscv: Fix ptdump when KASAN is enabled

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Message-ID: <87fsb4mjd9.fsf@all.your.base.are.belong.to.us>
Date:   Fri, 17 Feb 2023 15:55:46 +0100
From:   Björn Töpel <bjorn@...nel.org>
To:     Alexandre Ghiti <alexghiti@...osinc.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Andrey Ryabinin <ryabinin.a.a@...il.com>,
        Alexander Potapenko <glider@...gle.com>,
        Andrey Konovalov <andreyknvl@...il.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Ard Biesheuvel <ardb@...nel.org>,
        Conor Dooley <conor@...nel.org>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kasan-dev@...glegroups.com, linux-efi@...r.kernel.org
Cc:     Alexandre Ghiti <alexghiti@...osinc.com>
Subject: Re: [PATCH v4 5/6] riscv: Fix ptdump when KASAN is enabled

Alexandre Ghiti <alexghiti@...osinc.com> writes:

> The KASAN shadow region was moved next to the kernel mapping but the
> ptdump code was not updated and it appears to break the dump of the kernel
> page table, so fix this by moving the KASAN shadow region in ptdump.
>
> Fixes: f7ae02333d13 ("riscv: Move KASAN mapping next to the kernel mapping")
> Signed-off-by: Alexandre Ghiti <alexghiti@...osinc.com>

Tested-by: Björn Töpel <bjorn@...osinc.com>
Reviewed-by: Björn Töpel <bjorn@...osinc.com>