From: Nixiaoming <nixiaoming@huawei.com>
To: Michal Hocko <mhocko@kernel.org>
Cc: "akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"vdavydov.dev@gmail.com" <vdavydov.dev@gmail.com>,
"hannes@cmpxchg.org" <hannes@cmpxchg.org>,
"garsilva@embeddedor.com" <garsilva@embeddedor.com>,
"ktkhai@virtuozzo.com" <ktkhai@virtuozzo.com>,
"stummala@codeaurora.org" <stummala@codeaurora.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: RE: [PATCH] mm: Add conditions to avoid out-of-bounds
Date: Mon, 4 Jun 2018 11:27:26 +0000 [thread overview]
Message-ID: <E490CD805F7529488761C40FD9D26EF12A6834EF@dggemm507-mbx.china.huawei.com> (raw)
In-Reply-To: <20180604112026.GI19202@dhcp22.suse.cz>
I'm very sorry. It was my mistake.
it won't cross the border here.
Thanks
-----Original Message-----
From: Michal Hocko [mailto:mhocko@kernel.org]
Sent: Monday, June 04, 2018 7:20 PM
To: Nixiaoming <nixiaoming@huawei.com>
Cc: akpm@linux-foundation.org; vdavydov.dev@gmail.com; hannes@cmpxchg.org; garsilva@embeddedor.com; ktkhai@virtuozzo.com; stummala@codeaurora.org; linux-kernel@vger.kernel.org; linux-mm@kvack.org
Subject: Re: [PATCH] mm: Add conditions to avoid out-of-bounds
On Mon 04-06-18 18:37:35, nixiaoming wrote:
> In the function memcg_init_list_lru
> if call goto fail when i == 0, will cause out-of-bounds at lru->node[i]
How? All I can see is that the fail path does
for (i = i - 1; i >= 0; i--)
so it will not do anything for i=0.
--
Michal Hocko
SUSE Labs
prev parent reply other threads:[~2018-06-04 11:28 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-04 10:37 nixiaoming
2018-06-04 11:20 ` Michal Hocko
2018-06-04 11:27 ` Nixiaoming [this message]
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