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]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ZqNWOLwOoKfquBvH@tiehlicka \
--to=mhocko@suse.com \
--cc=cgroups@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.