From: Andrey Ryabinin <aryabinin@virtuozzo.com>
To: Paul Lawrence <paullawrence@google.com>,
Alexander Potapenko <glider@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com,
linux-mm@kvack.org, linux-kbuild@vger.kernel.org,
Matthias Kaehlcke <mka@chromium.org>,
Michael Davidson <md@google.com>,
Greg Hackmann <ghackmann@google.com>
Subject: Re: [PATCH v4 5/5] kasan: added functions for unpoisoning stack variables
Date: Tue, 5 Dec 2017 19:37:31 +0300 [thread overview]
Message-ID: <f324833c-bf22-2548-98e3-764fbd2d49b0@virtuozzo.com> (raw)
In-Reply-To: <20171204191735.132544-6-paullawrence@google.com>
On 12/04/2017 10:17 PM, Paul Lawrence wrote:
> From: Alexander Potapenko <glider@google.com>
>
> As a code-size optimization, LLVM builds since r279383 may
> bulk-manipulate the shadow region when (un)poisoning large memory
> blocks. This requires new callbacks that simply do an uninstrumented
> memset().
>
> This fixes linking the Clang-built kernel when using KASAN.
>
> Signed-off-by: Alexander Potapenko <glider@google.com>
> [ghackmann@google.com: fix memset() parameters, and tweak
> commit message to describe new callbacks]
> Signed-off-by: Greg Hackmann <ghackmann@google.com>
> Signed-off-by: Paul Lawrence <paullawrence@google.com>
> ---
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
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prev parent reply other threads:[~2017-12-05 16:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-04 19:17 [PATCH v4 0/5] kasan: support alloca, LLVM Paul Lawrence
2017-12-04 19:17 ` [PATCH v4 1/5] kasan: add compiler support for clang Paul Lawrence
2017-12-05 16:35 ` Andrey Ryabinin
2017-12-04 19:17 ` [PATCH v4 2/5] kasan/Makefile: Support LLVM style asan parameters Paul Lawrence
2017-12-08 9:25 ` Alexander Potapenko
2017-12-04 19:17 ` [PATCH v4 3/5] kasan: support alloca() poisoning Paul Lawrence
2017-12-05 16:36 ` Andrey Ryabinin
2017-12-04 19:17 ` [PATCH v4 4/5] kasan: Add tests for alloca poisoning Paul Lawrence
2017-12-05 16:36 ` Andrey Ryabinin
2017-12-04 19:17 ` [PATCH v4 5/5] kasan: added functions for unpoisoning stack variables Paul Lawrence
2017-12-05 16:37 ` Andrey Ryabinin [this message]
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