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From:   Walter Wu <walter-zh.wu@mediatek.com>
To:     Andrey Ryabinin <aryabinin@virtuozzo.com>,
        Alexander Potapenko <glider@google.com>,
        Dmitry Vyukov <dvyukov@google.com>,
        Matthias Brugger <matthias.bgg@gmail.com>
CC:     <kasan-dev@googlegroups.com>, <linux-mm@kvack.org>,
        <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-mediatek@lists.infradead.org>, <wsd_upstream@mediatek.com>,
        Walter Wu <walter-zh.wu@mediatek.com>
Subject: [PATCH 0/2] fix the missing underflow in memory operation function
Date:   Mon, 14 Oct 2019 18:31:48 +0800
Message-ID: <20191014103148.17816-1-walter-zh.wu@mediatek.com>
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Sender: linux-kernel-owner@vger.kernel.org
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The patchsets help to produce KASAN report when size is negative numbers
in memory operation function. It is helpful for programmer to solve the 
undefined behavior issue. Patch 1 based on Dmitry's review and
suggestion, patch 2 is a test in order to verify the patch 1. 

[1]https://bugzilla.kernel.org/show_bug.cgi?id=199341 
[2]https://lore.kernel.org/linux-arm-kernel/20190927034338.15813-1-walter-zh.wu@mediatek.com/ 

Walter Wu (2): 
kasan: detect negative size in memory operation function 
kasan: add test for invalid size in memmove

---
 lib/test_kasan.c          | 18 ++++++++++++++++++
 mm/kasan/common.c         | 13 ++++++++-----
 mm/kasan/generic.c        |  5 +++++
 mm/kasan/generic_report.c | 18 ++++++++++++++++++
 mm/kasan/tags.c           |  5 +++++
 mm/kasan/tags_report.c    | 17 +++++++++++++++++
 6 files changed, 71 insertions(+), 5 deletions(-)

-- 
2.18.0