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From: Vasiliy Kulikov <segoon@openwall.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>,
	kernel-hardening@lists.openwall.com,
	"Paul E. McKenney" <paul.mckenney@linaro.org>,
	Manuel Lauss <manuel.lauss@googlemail.com>,
	linux-kernel@vger.kernel.org, Richard Weinberger <richard@nod.at>,
	torvalds@linux-foundation.org, Marc Zyngier <maz@misterjones.org>
Subject: Re: [kernel-hardening] Re: initcall dependency problem (ns vs. threads)
Date: Mon, 1 Aug 2011 23:03:41 +0400	[thread overview]
Message-ID: <20110801190341.GA6898@albatros> (raw)
In-Reply-To: <20110801112021.25ec9041.akpm@linux-foundation.org>

> Are we talking about init_ipc_ns.ids[] here?  If so, did you try
> initializing the three rwsems at compile-time?
> 
> That's rather a nasty hack though.  It'd be better to run the mystery
> init function before starting the threads.

Looks like it solves the race.  However, I think it should be solved on
another level.  Other bugs might be hidden with this race.


Thanks,

-- 
Vasiliy Kulikov
http://www.openwall.com - bringing security into open computing environments

  parent reply	other threads:[~2011-08-01 19:03 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-01 18:01 [kernel-hardening] initcall dependency problem (ns vs. threads) Vasiliy Kulikov
2011-08-01 18:01 ` Vasiliy Kulikov
2011-08-01 18:20 ` [kernel-hardening] " Andrew Morton
2011-08-01 18:20   ` Andrew Morton
2011-08-01 18:34   ` [kernel-hardening] " Vasiliy Kulikov
2011-08-01 19:03   ` Vasiliy Kulikov [this message]
2011-08-01 19:07     ` Andrew Morton
2011-08-01 19:22       ` Vasiliy Kulikov
2011-08-02  0:01     ` Linus Torvalds
2011-08-02 12:45       ` [kernel-hardening] [PATCH] shm: fix a race between shm_exit() and shm_init() Vasiliy Kulikov
2011-08-02 12:45         ` Vasiliy Kulikov
2011-08-02 12:51         ` [kernel-hardening] " Manuel Lauss
2011-08-02 12:51           ` Manuel Lauss
2011-08-02 13:23         ` [kernel-hardening] " Richard Weinberger
2011-08-02 13:23           ` Richard Weinberger
2011-08-02 13:29         ` [kernel-hardening] " Marc Zyngier
2011-08-02 13:29           ` Marc Zyngier
2011-08-02 20:33         ` [kernel-hardening] " Andrew Morton
2011-08-02 20:33           ` Andrew Morton
2011-08-02 20:55         ` [kernel-hardening] " Andrew Morton
2011-08-02 20:55           ` Andrew Morton
2011-08-03  5:30           ` [kernel-hardening] " Manuel Lauss
2011-08-03  5:30             ` Manuel Lauss
2011-08-03  8:05           ` [kernel-hardening] " Marc Zyngier
2011-08-03  8:05             ` Marc Zyngier
2011-08-03  8:19             ` [kernel-hardening] " Linus Torvalds
2011-08-03  8:19               ` Linus Torvalds
2011-08-03 10:04               ` [kernel-hardening] " Manuel Lauss
2011-08-03 10:04                 ` Manuel Lauss
2011-08-03 10:30               ` [kernel-hardening] " Marc Zyngier
2011-08-03 10:30                 ` Marc Zyngier
2011-08-03 13:13                 ` Thadeu Lima de Souza Cascardo
2011-08-03 13:33                   ` Kay Sievers
2011-08-03 13:45                     ` Richard Weinberger
2011-08-04  0:35                 ` [kernel-hardening] " Linus Torvalds
2011-08-04  0:35                   ` Linus Torvalds
2011-08-04  0:50                   ` [kernel-hardening] " Andrew Morton
2011-08-04  0:50                     ` Andrew Morton
2011-08-04  1:01                     ` [kernel-hardening] " Linus Torvalds
2011-08-04  1:01                       ` Linus Torvalds
2011-08-04  1:15                       ` [kernel-hardening] " Kay Sievers
2011-08-04  1:15                         ` Kay Sievers
2011-08-04  8:26                   ` [kernel-hardening] " Marc Zyngier
2011-08-04  8:26                     ` Marc Zyngier
2011-08-03  7:43         ` [kernel-hardening] " Linus Torvalds
2011-08-03  7:43           ` Linus Torvalds
2011-08-03  7:50           ` [kernel-hardening] " Manuel Lauss
2011-08-03  7:50             ` Manuel Lauss
2011-08-03  8:00             ` [kernel-hardening] " Manuel Lauss
2011-08-03  8:00               ` Manuel Lauss
2011-08-03 19:33           ` [kernel-hardening] " Andrew Morton
2011-08-03 19:33             ` Andrew Morton
2011-08-03 19:52             ` [kernel-hardening] " Vasiliy Kulikov

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