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From: Samir Bellabes <sam@synack.fr>
To: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: davem@davemloft.net, paul.moore@hp.com,
	linux-security-module@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH] LSM: Add security_socket_post_accept() and security_socket_post_recv_datagram().
Date: Thu, 23 Apr 2009 16:47:22 +0200	[thread overview]
Message-ID: <m2eivjtojp.fsf@ssh.synack.fr> (raw)
In-Reply-To: <200904232300.IIB39542.SHJFLOtFVQFOMO@I-love.SAKURA.ne.jp> (Tetsuo Handa's message of "Thu, 23 Apr 2009 23:00:09 +0900")

Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> writes:

> There could be some programs which get confused by accept()/recvmsg() returning
> an error when poll() said "connections are ready" or "datagrams are ready".
> If we find such programs, we can tell TOMOYO to disable filtering for such
> programs.

Hello Tetsuo,

this will introduce a way to bypass the security system (?)

If TOMOYO won't filter such programs, people may add this "poll()"
feature to their code, in order to escape the security system.

I think it's strange for a security system to allow some programs
because of specific code issue, and not because of security reasons.

sam

  parent reply	other threads:[~2009-04-23 14:47 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-14 10:44 [PATCH] LSM: Add security_socket_post_accept() and security_socket_post_recv_datagram() Tetsuo Handa
2009-04-14 22:59 ` Paul Moore
2009-04-15  5:12   ` Tetsuo Handa
2009-04-15 10:51     ` [PATCH 1/2] " Tetsuo Handa
2009-04-15 10:51     ` [PATCH 2/2] tomoyo: Add network access control support Tetsuo Handa
2009-04-16 18:23     ` [PATCH] LSM: Add security_socket_post_accept() and security_socket_post_recv_datagram() Paul Moore
2009-04-18  8:34       ` Tetsuo Handa
2009-04-20 22:22         ` Paul Moore
2009-04-21 10:54           ` Tetsuo Handa
2009-04-21 10:57             ` David Miller
2009-04-21 11:39               ` Tetsuo Handa
2009-04-21 11:40                 ` David Miller
2009-04-21 12:26                   ` Tetsuo Handa
2009-04-21 12:37                     ` David Miller
2009-04-21 12:52                       ` [PATCH] LSM: Add security_socket_post_accept() andsecurity_socket_post_recv_datagram() Tetsuo Handa
2009-04-21 13:04                         ` David Miller
2009-04-22  0:55                           ` [PATCH] LSM: Add security_socket_post_accept() and security_socket_post_recv_datagram() Tetsuo Handa
2009-04-22  1:14                             ` David Miller
2009-04-22  1:49                               ` Tetsuo Handa
2009-04-22  4:22                                 ` David Miller
2009-04-22  5:02                                   ` Tetsuo Handa
2009-04-22  5:07                                     ` David Miller
2009-04-22  5:38                                       ` Tetsuo Handa
2009-04-22  5:52                                         ` David Miller
2009-04-23 14:00                                           ` Tetsuo Handa
2009-04-23 14:10                                             ` David Miller
2009-04-23 14:47                                             ` Samir Bellabes [this message]
2009-04-22  1:52                               ` Greg Lindahl
2009-04-22  4:23                                 ` David Miller
2009-04-22  6:10                                   ` Greg Lindahl
2009-04-22  6:34                                     ` David Miller
2009-04-22  6:41                                       ` Greg Lindahl
2009-04-22  6:46                                         ` David Miller
2009-04-22  6:54                                           ` Greg Lindahl
2009-04-22  6:58                                             ` David Miller
2009-04-22  7:19                                           ` Tetsuo Handa
2009-04-24  2:07                                       ` Tetsuo Handa
2009-04-24  4:35                                         ` David Miller
2009-04-24  4:41                                           ` David Miller
2009-04-24  4:55                                           ` Tetsuo Handa
2009-04-24  5:26                                           ` Tetsuo Handa
2009-04-24 11:40                                             ` David Miller
2009-04-24 13:57                                               ` [PATCH] LSM: Add security_socket_post_accept() andsecurity_socket_post_recv_datagram() Tetsuo Handa
2009-04-19  8:03 ` [PATCH v2] LSM: Add security_socket_post_accept() and security_socket_post_recv_datagram() Tetsuo Handa

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