From: Greg KH <gregkh@linuxfoundation.org>
To: Christian Brauner <brauner@kernel.org>
Cc: "Christian A. Ehrhardt" <lk@c--e.de>, Tejun Heo <tj@kernel.org>,
syzbot <syzbot+534ee3d24c37c411f37f@syzkaller.appspotmail.com>,
linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com,
Yosry Ahmed <yosryahmed@google.com>
Subject: Re: [PATCH] cgroup: Fix crash with CLONE_INTO_CGROUP and v1 cgroups
Date: Sun, 9 Oct 2022 20:16:29 +0200 [thread overview]
Message-ID: <Y0MP/errn3nJ+9WQ@kroah.com> (raw)
In-Reply-To: <20221009173519.jwuissylg5haicie@wittgenstein>
On Sun, Oct 09, 2022 at 07:35:19PM +0200, Christian Brauner wrote:
> On Sun, Oct 09, 2022 at 03:10:36PM +0200, Christian A. Ehrhardt wrote:
> >
> > Since commit f3a2aebdd6, Version 1 cgroups no longer cause an
> > error when used with CLONE_INTO_CGROUP. However, the permission
> > checks performed during clone assume a Version 2 cgroup.
> >
> > Restore the error check for V1 cgroups in the clone() path.
> >
> > Reported-by: syzbot+534ee3d24c37c411f37f@syzkaller.appspotmail.com
> > Link: https://lore.kernel.org/lkml/000000000000385cbf05ea3f1862@google.com/
> > Fixes: f3a2aebdd6 ("cgroup: enable cgroup_get_from_file() on cgroup1")
> > Signed-off-by: Christian A. Ehrhardt <lk@c--e.de>
> > ---
>
> Thanks for fixing this,
> Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
No cc: stable? :(
next prev parent reply other threads:[~2022-10-09 18:17 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-05 0:59 [syzbot] general protection fault in kernfs_get_inode syzbot
2022-10-05 2:19 ` syzbot
2022-10-07 21:35 ` Tejun Heo
2022-10-08 5:46 ` Christian Brauner
2022-10-08 5:51 ` Christian Brauner
2022-10-08 11:15 ` syzbot
2022-10-08 18:29 ` Christian A. Ehrhardt
2022-10-09 8:42 ` Christian Brauner
2022-10-09 13:10 ` [PATCH] cgroup: Fix crash with CLONE_INTO_CGROUP and v1 cgroups Christian A. Ehrhardt
2022-10-09 17:35 ` Christian Brauner
2022-10-09 18:16 ` Greg KH [this message]
2022-10-10 18:48 ` Tejun Heo
2022-10-09 18:42 ` Yosry Ahmed
2022-10-10 18:38 ` Martin KaFai Lau
2022-10-10 18:43 ` Tejun Heo
2022-10-10 18:50 ` Yosry Ahmed
2022-10-10 19:51 ` Tejun Heo
2022-10-10 19:57 ` Yosry Ahmed
2022-10-10 20:07 ` Tejun Heo
2022-10-10 20:09 ` Yosry Ahmed
2022-11-17 7:26 ` [syzbot] general protection fault in kernfs_get_inode syzbot
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=Y0MP/errn3nJ+9WQ@kroah.com \
--to=gregkh@linuxfoundation.org \
--cc=brauner@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=lk@c--e.de \
--cc=syzbot+534ee3d24c37c411f37f@syzkaller.appspotmail.com \
--cc=syzkaller-bugs@googlegroups.com \
--cc=tj@kernel.org \
--cc=yosryahmed@google.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).