linux-kernel - Re: [PATCH?] race between cgroup_subsys->fork() and cgroup

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 26 Nov 2015 17:01:37 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	Aleksa Sarai <cyphar@...har.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Li Zefan <lizefan@...wei.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH?] race between cgroup_subsys->fork() and
	cgroup_migrate()

On 11/25, Tejun Heo wrote:
>
> And I spotted a bug in cgroup core in controller enable path.  While
> the race between fork and attach exists and needs to be fixed, I think
> the cgroup core bug is the main source of discrepancy.  Will update
> once I learn more.

OK. I do not know what exactly do you mean, perhaps if you fix this problem
the race between fork and attach goes away and in this case the fix I sent
is not needed? I'll wait for more info.

Oleg.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/