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

From: Andrew Morton
Date: Sat Sep 12 2020 - 20:42:48 EST


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?