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From: Christoph Hellwig <hch@infradead.org>
To: Paul Lawrence <paullawrence@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>,
	Alexander Potapenko <glider@google.com>,
	Dmitry Vyukov <dvyukov@google.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	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 v3 3/5] kasan: support alloca() poisoning
Date: Mon, 4 Dec 2017 08:42:40 -0800	[thread overview]
Message-ID: <20171204164240.GA24425@infradead.org> (raw)
In-Reply-To: <20171201213643.2506-4-paullawrence@google.com>

I don't think we are using alloca in kernel mode code, and we shouldn't.
What do I miss?  Is this hidden support for on-stack VLAs?  I thought
we'd get rid of them as well.

  parent reply	other threads:[~2017-12-04 16:42 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-01 21:36 [PATCH v3 0/5] kasan: support alloca, LLVM Paul Lawrence
2017-12-01 21:36 ` [PATCH v3 1/5] kasan: add compiler support for clang Paul Lawrence
2017-12-01 21:36 ` [PATCH v3 2/5] kasan/Makefile: Support LLVM style asan parameters Paul Lawrence
2017-12-04 16:14   ` Andrey Ryabinin
     [not found]     ` <CAL=UVf7LO5BDWVEeLXLkrLDBxwV0aO2sLv_htkpcL_Gp7sT07Q@mail.gmail.com>
2017-12-04 16:55       ` Andrey Ryabinin
2017-12-01 21:36 ` [PATCH v3 3/5] kasan: support alloca() poisoning Paul Lawrence
2017-12-03 12:23   ` Dmitry Vyukov
2017-12-04 16:42   ` Christoph Hellwig [this message]
2017-12-04 16:55     ` Andrey Ryabinin
2017-12-04 17:09       ` Andrey Ryabinin
2017-12-01 21:36 ` [PATCH v3 4/5] kasan: Add tests for alloca poisonong Paul Lawrence
2017-12-01 21:36 ` [PATCH v3 5/5] kasan: added functions for unpoisoning stack variables Paul Lawrence
2017-12-03 12:24 ` [PATCH v3 0/5] kasan: support alloca, LLVM Dmitry Vyukov

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