Re: [External] Re: [PATCH] mm: memcontrol: Fix out-of-bounds on the buf returned by memory_stat_format

From: Muchun Song
Date: Mon Sep 14 2020 - 00:03:14 EST


On Sun, Sep 13, 2020 at 8:42 AM Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> On Sat, 12 Sep 2020 23:51:00 +0800 Muchun Song <songmuchun@xxxxxxxxxxxxx> wrote:
>
> > The memory_stat_format() returns a format string, but the return buf
> > may not including the trailing '\0'. So the users may read the buf
> > out of bounds.
>
> That sounds serious. Is a cc:stable appropriate?
>

Yeah, I think we should cc:stable.

--
Yours,
Muchun