From: Michal Hocko <mhocko@suse.com>
To: Al Viro <viro@zeniv.linux.org.uk>
Cc: cgroups@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] memcg_write_event_control(): fix a user-triggerable oops
Date: Fri, 26 Jul 2024 09:54:32 +0200 [thread overview]
Message-ID: <ZqNWOLwOoKfquBvH@tiehlicka> (raw)
In-Reply-To: <20240726074804.GE99483@ZenIV>
On Fri 26-07-24 08:48:04, Al Viro wrote:
> On Fri, Jul 26, 2024 at 09:13:00AM +0200, Michal Hocko wrote:
> > On Fri 26-07-24 09:06:59, Michal Hocko wrote:
> > > On Fri 26-07-24 06:43:57, Al Viro wrote:
> > > > We are *not* guaranteed that anything past the terminating NUL
> > > > is mapped (let alone initialized with anything sane).
> > > >
> > >
> > > Fixes: 0dea116876ee ("cgroup: implement eventfd-based generic API for notifications")
> > >
> > > > Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
> > >
> > > Acked-by: Michal Hocko <mhocko@suse.com>
> >
> > Btw. this should be
> > Cc: stable
>
> Point, except that for -stable it needs to be applied to mm/memcontrol.c
> instead...
Correct. And if anybody wants to backport to pre 3.14 then to
kernel/cgroup.c
--
Michal Hocko
SUSE Labs
prev parent reply other threads:[~2024-07-26 7:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-26 5:43 [PATCH] memcg_write_event_control(): fix a user-triggerable oops Al Viro
2024-07-26 7:06 ` Michal Hocko
2024-07-26 7:13 ` Michal Hocko
2024-07-26 7:48 ` Al Viro
2024-07-26 7:54 ` Michal Hocko [this message]
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