From mboxrd@z Thu Jan  1 00:00:00 1970
From: Matthew Wilcox <willy@infradead.org>
Subject: Re: [PATCH 2/2] kasan: add test for invalid size in memmove
Date: Mon, 14 Oct 2019 08:07:10 -0700
Message-ID: <20191014150710.GY32665@bombadil.infradead.org>
References: <20191014103654.17982-1-walter-zh.wu@mediatek.com>
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To: Walter Wu <walter-zh.wu@mediatek.com>
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On Mon, Oct 14, 2019 at 06:36:54PM +0800, Walter Wu wrote:
> Test size is negative numbers in memmove in order to verify
> whether it correctly get KASAN report.

You're not testing negative numbers, though.  memmove() takes an unsigned
type, so you're testing a very large number.