From: Daniel Axtens <dja@axtens.net>
To: Marco Elver <elver@google.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Linux Memory Management List <linux-mm@kvack.org>,
linuxppc-dev@lists.ozlabs.org,
kasan-dev <kasan-dev@googlegroups.com>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
aneesh.kumar@linux.ibm.com, Balbir Singh <bsingharora@gmail.com>,
"Aneesh Kumar K . V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: Re: [PATCH v12 2/6] kasan: allow architectures to provide an outline readiness check
Date: Wed, 16 Jun 2021 14:41:39 +1000 [thread overview]
Message-ID: <87fsxiv2t8.fsf@dja-thinkpad.axtens.net> (raw)
In-Reply-To: <CANpmjNN2=gdDBPzYQYsmOtLQVVjSz2qFcwcTMEqB=s_ZWndJLg@mail.gmail.com>
Hi Marco,
>> + /* Don't touch the shadow memory if arch isn't ready */
>> + if (!kasan_arch_is_ready())
>> + return;
>> +
>
> What about kasan_poison_last_granule()? kasan_unpoison() currently
> seems to potentially trip on that.
Ah the perils of rebasing an old series! I'll re-audit the generic code
for functions that touch memory and make sure I have covered them all.
Thanks for the review.
Kind regards,
Daniel
>
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next prev parent reply other threads:[~2021-06-16 4:41 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-15 1:46 [PATCH v12 0/6] KASAN core changes for ppc64 radix KASAN Daniel Axtens
2021-06-15 1:47 ` [PATCH v12 1/6] kasan: allow an architecture to disable inline instrumentation Daniel Axtens
2021-06-15 7:46 ` Marco Elver
2021-06-16 4:39 ` Daniel Axtens
2021-06-15 1:47 ` [PATCH v12 2/6] kasan: allow architectures to provide an outline readiness check Daniel Axtens
2021-06-15 10:08 ` Marco Elver
2021-06-16 4:41 ` Daniel Axtens [this message]
2021-06-15 1:47 ` [PATCH v12 3/6] kasan: define and use MAX_PTRS_PER_* for early shadow tables Daniel Axtens
2021-06-15 1:47 ` [PATCH v12 4/6] kasan: Document support on 32-bit powerpc Daniel Axtens
2021-06-15 1:47 ` [PATCH v12 5/6] powerpc/mm/kasan: rename kasan_init_32.c to init_32.c Daniel Axtens
2021-06-15 1:47 ` [PATCH v12 6/6] [RFC] powerpc: Book3S 64-bit outline-only KASAN support Daniel Axtens
2021-06-15 10:31 ` [PATCH v12 0/6] KASAN core changes for ppc64 radix KASAN Marco Elver
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