linux-kernel - Re: [PATCH -next] mm/memcg: Use struct

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Message-ID: <CAMZfGtUBSqgnHM+DSG7na=7tbNMyj_qS8pEOCn9nDdkPEzi-4g@mail.gmail.com>
Date:   Thu, 16 Dec 2021 17:44:38 +0800
From:   Muchun Song <songmuchun@...edance.com>
To:     Wang Weiyang <wangweiyang2@...wei.com>
Cc:     Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Cgroups <cgroups@...r.kernel.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] mm/memcg: Use struct_size() helper in kzalloc()

On Thu, Dec 16, 2021 at 10:21 AM Wang Weiyang <wangweiyang2@...wei.com> wrote:
>
> Make use of the struct_size() helper instead of an open-coded version, in
> order to avoid any potential type mistakes or integer overflows that, in
> the worst scenario, could lead to heap overflows.
>
> Link: https://github.com/KSPP/linux/issues/160
> Signed-off-by: Wang Weiyang <wangweiyang2@...wei.com>

Reviewed-by: Muchun Song <songmuchun@...edance.com>