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From: Mike Galbraith <efault@gmx.de>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Oleg Nesterov <oleg@redhat.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Pavel Emelyanov <xemul@parallels.com>,
	Cyrill Gorcunov <gorcunov@openvz.org>,
	Louis Rilling <louis.rilling@kerlabs.com>
Subject: Re: [RFC PATCH] namespaces: fix leak on fork() failure
Date: Mon, 30 Apr 2012 05:25:37 +0200	[thread overview]
Message-ID: <1335756337.17899.9.camel@marge.simpson.net> (raw)
In-Reply-To: <m11un5zzzb.fsf@fess.ebiederm.org>

On Sun, 2012-04-29 at 19:59 -0700, Eric W. Biederman wrote: 
> Oleg Nesterov <oleg@redhat.com> writes:

> > Yes, but please note that this change also checks "new == NULL", so I
> > still think the patch is correct.
> 
> Sort of.  It is correct in the sense that it performs magic checks on
> it's arguments to see that it's caller is exit_task_namespaces called
> from the fork failure path.

Yeah, did that to keep namespace fix in namespace source.  Bad idea even
with circles and arrows "hey, I'm an unborn red-headed stepchild".

-Mike




  reply	other threads:[~2012-04-30  3:25 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-28  9:19 [RFC PATCH] namespaces: fix leak on fork() failure Mike Galbraith
2012-04-28 14:26 ` Oleg Nesterov
2012-04-29  4:13   ` Mike Galbraith
2012-04-29  7:57   ` Eric W. Biederman
2012-04-29  9:49     ` Mike Galbraith
2012-04-29 16:58     ` Oleg Nesterov
2012-04-30  2:59       ` Eric W. Biederman
2012-04-30  3:25         ` Mike Galbraith [this message]
2012-05-02 12:40         ` Oleg Nesterov
2012-05-02 17:37           ` Eric W. Biederman
2012-04-30  3:01       ` [PATCH] " Mike Galbraith
     [not found]         ` <m1zk9rmyh4.fsf@fess.ebiederm.org>
2012-05-01 20:42           ` Andrew Morton
2012-05-03  3:12             ` Mike Galbraith
2012-05-03 14:56               ` Mike Galbraith
2012-05-04  4:27                 ` Mike Galbraith
2012-05-04  7:55                   ` Eric W. Biederman
2012-05-04  8:34                     ` Mike Galbraith
2012-05-04  9:45                     ` Mike Galbraith
2012-05-04 14:13                       ` Eric W. Biederman
2012-05-04 14:49                         ` Mike Galbraith
2012-05-04 15:36                           ` Eric W. Biederman
2012-05-04 16:57                             ` Mike Galbraith
2012-05-04 20:29                               ` Eric W. Biederman
2012-05-05  5:56                                 ` Mike Galbraith
2012-05-05  6:08                                   ` Mike Galbraith
2012-05-05  7:12                                     ` Mike Galbraith
2012-05-05 11:37                                       ` Eric W. Biederman
2012-05-07 21:51                                       ` [PATCH] vfs: Speed up deactivate_super for non-modular filesystems Eric W. Biederman
2012-05-07 22:17                                         ` Al Viro
2012-05-07 23:56                                           ` Paul E. McKenney
2012-05-08  1:07                                             ` Eric W. Biederman
2012-05-08  4:53                                               ` Mike Galbraith
2012-05-09  7:55                                               ` Nick Piggin
2012-05-09 11:02                                                 ` Eric W. Biederman
2012-05-09 11:02                                                   ` Eric W. Biederman
2012-05-15  8:40                                                   ` Nick Piggin
2012-05-16  0:34                                                     ` Eric W. Biederman
2012-05-16  0:34                                                       ` Eric W. Biederman
2012-05-09 13:59                                                 ` Paul E. McKenney
2012-05-04  8:03                 ` [PATCH] Re: [RFC PATCH] namespaces: fix leak on fork() failure Eric W. Biederman
2012-05-04  8:19                   ` Mike Galbraith
2012-05-04  8:54                     ` Mike Galbraith
2012-05-07  0:32             ` [PATCH 0/3] pidns: Closing the pid namespace exit race Eric W. Biederman
2012-05-07  0:33               ` [PATCH 1/3] pidns: Use task_active_pid_ns in do_notify_parent Eric W. Biederman
2012-05-07  0:35               ` [PATCH 2/3] pidns: Guarantee that the pidns init will be the last pidns process reaped Eric W. Biederman
2012-05-08 22:50                 ` Andrew Morton
2012-05-16 18:39                 ` Oleg Nesterov
2012-05-16 19:34                   ` Oleg Nesterov
2012-05-16 20:54                   ` Eric W. Biederman
2012-05-17 17:00                     ` Oleg Nesterov
2012-05-17 21:46                       ` Eric W. Biederman
2012-05-18 12:39                         ` Oleg Nesterov
2012-05-19  0:03                           ` Eric W. Biederman
2012-05-21 12:44                             ` Oleg Nesterov
2012-05-22  0:16                               ` Eric W. Biederman
2012-05-22  0:20                               ` [PATCH] pidns: Guarantee that the pidns init will be the last pidns process reaped. v2 Eric W. Biederman
2012-05-22 16:54                                 ` Oleg Nesterov
2012-05-22 19:23                                 ` Andrew Morton
2012-05-23 14:52                                   ` Oleg Nesterov
2012-05-25 15:15                                     ` [PATCH -mm] pidns-guarantee-that-the-pidns-init-will-be-the-last-pidns-process-r eaped-v2-fix-fix Oleg Nesterov
2012-05-25 15:59                                       ` [PATCH -mm 0/1] pidns: find_new_reaper() can no longer switch to init_pid_ns.child_reaper Oleg Nesterov
2012-05-25 16:00                                         ` [PATCH -mm 1/1] " Oleg Nesterov
2012-05-25 21:43                                           ` Eric W. Biederman
2012-05-27 19:10                                             ` [PATCH v2 -mm 0/1] " Oleg Nesterov
2012-05-27 19:11                                               ` [PATCH v2 -mm 1/1] " Oleg Nesterov
2012-05-29  6:34                                                 ` Eric W. Biederman
2012-05-25 21:25                                       ` [PATCH -mm] pidns-guarantee-that-the-pidns-init-will-be-the-last-pidns-process-r eaped-v2-fix-fix Eric W. Biederman
2012-05-27 18:41                                         ` [PATCH -mm v2] " Oleg Nesterov
2012-05-07  0:35               ` [PATCH 3/3] pidns: Make killed children autoreap Eric W. Biederman
2012-05-08 22:51                 ` Andrew Morton
2012-04-30 13:57 ` [RFC PATCH] namespaces: fix leak on fork() failure Mike Galbraith

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