From: Mark Rutland <mark.rutland@arm.com>
To: Andrey Ryabinin <ryabinin.a.a@gmail.com>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
linux-arm-kernel@lists.infradead.org, Yury <yury.norov@gmail.com>,
Alexey Klimov <klimov.linux@gmail.com>,
Arnd Bergmann <arnd@arndb.de>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Andrey Konovalov <andreyknvl@google.com>,
Linus Walleij <linus.walleij@linaro.org>,
LKML <linux-kernel@vger.kernel.org>,
David Keitel <dkeitel@codeaurora.org>,
Alexander Potapenko <glider@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
Mark Salter <msalter@redhat.com>,
linux-efi@vger.kernel.org
Subject: Re: [PATCH v6 0/6] KASAN for arm64
Date: Thu, 8 Oct 2015 12:11:44 +0100 [thread overview]
Message-ID: <20151008111144.GC7275@leverpostej> (raw)
In-Reply-To: <CAPAsAGxR-yqtmFeo65Xw_0RQyEy=mN1uG=GKtqoMLr_x_N0u5w@mail.gmail.com>
On Thu, Oct 08, 2015 at 01:36:09PM +0300, Andrey Ryabinin wrote:
> 2015-10-07 13:04 GMT+03:00 Catalin Marinas <catalin.marinas@arm.com>:
> > On Thu, Sep 17, 2015 at 12:38:06PM +0300, Andrey Ryabinin wrote:
> >> As usual patches available in git
> >> git://github.com/aryabinin/linux.git kasan/arm64v6
> >>
> >> Changes since v5:
> >> - Rebase on top of 4.3-rc1
> >> - Fixed EFI boot.
> >> - Updated Doc/features/KASAN.
> >
> > I tried to merge these patches (apart from the x86 one which is already
> > merged) but it still doesn't boot on Juno as an EFI application.
> >
>
> 4.3-rc1 was ok and 4.3-rc4 is not. Break caused by 0ce3cc008ec04
> ("arm64/efi: Fix boot crash by not padding between EFI_MEMORY_RUNTIME
> regions")
> It introduced sort() call in efi_get_virtmap().
> sort() is generic kernel function and it's instrumented, so we crash
> when KASAN tries to access shadow in sort().
I believe this is solved by Ard's stub isolation series [1,2], which
will build a stub-specific copy of sort() and various other functions
(see the arm-deps in [2]).
So long as the stub is not built with ASAN, that should work.
Mark.
[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2015-October/373807.html
[2] http://lists.infradead.org/pipermail/linux-arm-kernel/2015-October/373808.html
next prev parent reply other threads:[~2015-10-08 11:12 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-17 9:38 [PATCH v6 0/6] KASAN for arm64 Andrey Ryabinin
2015-09-17 9:38 ` [PATCH v6 1/6] arm64: introduce VA_START macro - the first kernel virtual address Andrey Ryabinin
2015-09-17 9:38 ` [PATCH v6 2/6] arm64: move PGD_SIZE definition to pgalloc.h Andrey Ryabinin
2015-09-17 9:38 ` [PATCH v6 3/6] x86, efi, kasan: #undef memset/memcpy/memmove per arch Andrey Ryabinin
2015-09-29 8:38 ` Ingo Molnar
2015-09-29 15:34 ` Andrey Ryabinin
2015-09-17 9:38 ` [PATCH v6 4/6] arm64: add KASAN support Andrey Ryabinin
2015-09-17 9:38 ` [PATCH v6 5/6] ARM64: kasan: print memory assignment Andrey Ryabinin
2015-09-17 9:38 ` [PATCH v6 6/6] Documentation/features/KASAN: arm64 supports KASAN now Andrey Ryabinin
2015-10-07 10:04 ` [PATCH v6 0/6] KASAN for arm64 Catalin Marinas
2015-10-08 10:36 ` Andrey Ryabinin
2015-10-08 11:06 ` Mark Rutland
2015-10-08 11:11 ` Mark Rutland [this message]
2015-10-08 11:23 ` Andrey Ryabinin
2015-10-08 12:09 ` Ard Biesheuvel
2015-10-08 15:11 ` Catalin Marinas
2015-10-08 16:01 ` Ard Biesheuvel
2015-10-08 16:07 ` Andrey Ryabinin
2015-10-09 9:32 ` Andrey Ryabinin
2015-10-09 9:48 ` Mark Rutland
2015-10-09 10:18 ` Andrey Ryabinin
2015-10-09 12:42 ` Mark Rutland
2015-10-09 14:34 ` Andrey Ryabinin
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