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From: Salvatore Mesoraca <s.mesoraca16@gmail.com>
To: Pavel Machek <pavel@ucw.cz>
Cc: kernel list <linux-kernel@vger.kernel.org>,
	linux-security-module@vger.kernel.org,
	Kernel Hardening <kernel-hardening@lists.openwall.com>,
	Brad Spengler <spender@grsecurity.net>,
	PaX Team <pageexec@freemail.hu>,
	Casey Schaufler <casey@schaufler-ca.com>,
	Kees Cook <keescook@chromium.org>,
	James Morris <james.l.morris@oracle.com>,
	"Serge E. Hallyn" <serge@hallyn.com>
Subject: Re: [PATCH 04/11] S.A.R.A. USB Filtering
Date: Tue, 20 Jun 2017 09:53:37 +0200	[thread overview]
Message-ID: <CAJHCu1KujgnTsyRBRCk2LXFFdRZKWVRHmdV3nPPiUanXsLq=sg@mail.gmail.com> (raw)
In-Reply-To: <20170620070721.GA30728@amd>

2017-06-20 9:07 GMT+02:00 Pavel Machek <pavel@ucw.cz>:
> Hmm. Given that USB device provides vendor id/product id, this does
> not really stop anyone, right?
>
> AFAICT you can still get USB stick with vid/pid of logitech keyboard,
> and kernel will recognize it as a usb stick.

There are a number of ways by which a device can be assigned to a driver.
vid/pid is the most common for the most esoteric devices: i.e. less used/most
dangerous.
However you are right, a final version of this feature should have included
"interface matching" too and even something much more specific like serial
matching.
Anyway, because of lack of interest in having this feature included in kernel
space (something similar can already be done in user-space) it has been
abandoned.
You are answering to an old version of S.A.R.A. that can now be considered
obsolete.
Thank you anyway for your comment.

Salvatore

WARNING: multiple messages have this Message-ID (diff)
From: s.mesoraca16@gmail.com (Salvatore Mesoraca)
To: linux-security-module@vger.kernel.org
Subject: [PATCH 04/11] S.A.R.A. USB Filtering
Date: Tue, 20 Jun 2017 09:53:37 +0200	[thread overview]
Message-ID: <CAJHCu1KujgnTsyRBRCk2LXFFdRZKWVRHmdV3nPPiUanXsLq=sg@mail.gmail.com> (raw)
In-Reply-To: <20170620070721.GA30728@amd>

2017-06-20 9:07 GMT+02:00 Pavel Machek <pavel@ucw.cz>:
> Hmm. Given that USB device provides vendor id/product id, this does
> not really stop anyone, right?
>
> AFAICT you can still get USB stick with vid/pid of logitech keyboard,
> and kernel will recognize it as a usb stick.

There are a number of ways by which a device can be assigned to a driver.
vid/pid is the most common for the most esoteric devices: i.e. less used/most
dangerous.
However you are right, a final version of this feature should have included
"interface matching" too and even something much more specific like serial
matching.
Anyway, because of lack of interest in having this feature included in kernel
space (something similar can already be done in user-space) it has been
abandoned.
You are answering to an old version of S.A.R.A. that can now be considered
obsolete.
Thank you anyway for your comment.

Salvatore
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WARNING: multiple messages have this Message-ID (diff)
From: Salvatore Mesoraca <s.mesoraca16@gmail.com>
To: Pavel Machek <pavel@ucw.cz>
Cc: kernel list <linux-kernel@vger.kernel.org>,
	linux-security-module@vger.kernel.org,
	Kernel Hardening <kernel-hardening@lists.openwall.com>,
	Brad Spengler <spender@grsecurity.net>,
	PaX Team <pageexec@freemail.hu>,
	Casey Schaufler <casey@schaufler-ca.com>,
	Kees Cook <keescook@chromium.org>,
	James Morris <james.l.morris@oracle.com>,
	"Serge E. Hallyn" <serge@hallyn.com>
Subject: [kernel-hardening] Re: [PATCH 04/11] S.A.R.A. USB Filtering
Date: Tue, 20 Jun 2017 09:53:37 +0200	[thread overview]
Message-ID: <CAJHCu1KujgnTsyRBRCk2LXFFdRZKWVRHmdV3nPPiUanXsLq=sg@mail.gmail.com> (raw)
In-Reply-To: <20170620070721.GA30728@amd>

2017-06-20 9:07 GMT+02:00 Pavel Machek <pavel@ucw.cz>:
> Hmm. Given that USB device provides vendor id/product id, this does
> not really stop anyone, right?
>
> AFAICT you can still get USB stick with vid/pid of logitech keyboard,
> and kernel will recognize it as a usb stick.

There are a number of ways by which a device can be assigned to a driver.
vid/pid is the most common for the most esoteric devices: i.e. less used/most
dangerous.
However you are right, a final version of this feature should have included
"interface matching" too and even something much more specific like serial
matching.
Anyway, because of lack of interest in having this feature included in kernel
space (something similar can already be done in user-space) it has been
abandoned.
You are answering to an old version of S.A.R.A. that can now be considered
obsolete.
Thank you anyway for your comment.

Salvatore

  reply	other threads:[~2017-06-20  7:53 UTC|newest]

Thread overview: 124+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-12 16:56 [PATCH 00/11] S.A.R.A. a new stacked LSM Salvatore Mesoraca
2017-06-12 16:56 ` [kernel-hardening] " Salvatore Mesoraca
2017-06-12 16:56 ` Salvatore Mesoraca
2017-06-12 16:56 ` [PATCH 01/11] S.A.R.A. Documentation Salvatore Mesoraca
2017-06-12 16:56   ` [kernel-hardening] " Salvatore Mesoraca
2017-06-12 16:56   ` Salvatore Mesoraca
2017-06-12 17:49   ` [kernel-hardening] " Jann Horn
2017-06-12 17:49     ` Jann Horn
2017-06-13  7:43     ` Salvatore Mesoraca
2017-06-13  7:43       ` Salvatore Mesoraca
2017-06-27 22:51   ` Kees Cook
2017-06-27 22:51     ` [kernel-hardening] " Kees Cook
2017-06-27 22:51     ` Kees Cook
2017-06-27 22:54     ` Kees Cook
2017-06-27 22:54       ` [kernel-hardening] " Kees Cook
2017-06-27 22:54       ` Kees Cook
2017-07-04 10:12     ` Salvatore Mesoraca
2017-07-04 10:12       ` [kernel-hardening] " Salvatore Mesoraca
2017-07-04 10:12       ` Salvatore Mesoraca
2017-06-12 16:56 ` [PATCH 02/11] S.A.R.A. framework creation Salvatore Mesoraca
2017-06-12 16:56   ` [kernel-hardening] " Salvatore Mesoraca
2017-06-12 16:56   ` Salvatore Mesoraca
2017-06-12 16:56 ` [PATCH 03/11] Creation of "usb_device_auth" LSM hook Salvatore Mesoraca
2017-06-12 16:56   ` [kernel-hardening] " Salvatore Mesoraca
2017-06-12 16:56   ` Salvatore Mesoraca
2017-06-12 17:35   ` Krzysztof Opasiak
2017-06-12 17:35     ` [kernel-hardening] " Krzysztof Opasiak
2017-06-12 17:35     ` Krzysztof Opasiak
2017-06-13  7:47     ` Salvatore Mesoraca
2017-06-13  7:47       ` [kernel-hardening] " Salvatore Mesoraca
2017-06-13  7:47       ` Salvatore Mesoraca
2017-06-12 19:38   ` Greg Kroah-Hartman
2017-06-12 19:38     ` [kernel-hardening] " Greg Kroah-Hartman
2017-06-12 19:38     ` Greg Kroah-Hartman
2017-06-13  7:50     ` Salvatore Mesoraca
2017-06-13  7:50       ` [kernel-hardening] " Salvatore Mesoraca
2017-06-13  7:50       ` Salvatore Mesoraca
2017-06-12 21:31   ` Casey Schaufler
2017-06-12 21:31     ` [kernel-hardening] " Casey Schaufler
2017-06-12 21:31     ` Casey Schaufler
2017-06-13  7:51     ` Salvatore Mesoraca
2017-06-13  7:51       ` [kernel-hardening] " Salvatore Mesoraca
2017-06-13  7:51       ` Salvatore Mesoraca
2017-06-13  1:15   ` kbuild test robot
2017-06-13  1:15     ` [kernel-hardening] " kbuild test robot
2017-06-13  1:15     ` kbuild test robot
2017-06-13  3:11   ` kbuild test robot
2017-06-13  3:11     ` [kernel-hardening] " kbuild test robot
2017-06-13  3:11     ` kbuild test robot
2017-06-12 16:56 ` [PATCH 04/11] S.A.R.A. USB Filtering Salvatore Mesoraca
2017-06-12 16:56   ` [kernel-hardening] " Salvatore Mesoraca
2017-06-12 16:56   ` Salvatore Mesoraca
2017-06-20  7:07   ` Pavel Machek
2017-06-20  7:07     ` [kernel-hardening] " Pavel Machek
2017-06-20  7:53     ` Salvatore Mesoraca [this message]
2017-06-20  7:53       ` Salvatore Mesoraca
2017-06-20  7:53       ` Salvatore Mesoraca
2017-06-12 16:56 ` [PATCH 05/11] Creation of "check_vmflags" LSM hook Salvatore Mesoraca
2017-06-12 16:56   ` [kernel-hardening] " Salvatore Mesoraca
2017-06-12 16:56   ` Salvatore Mesoraca
2017-06-12 16:56   ` Salvatore Mesoraca
2017-06-12 21:31   ` Casey Schaufler
2017-06-12 21:31     ` [kernel-hardening] " Casey Schaufler
2017-06-12 21:31     ` Casey Schaufler
2017-06-12 21:31     ` Casey Schaufler
2017-06-13  7:55     ` Salvatore Mesoraca
2017-06-13  7:55       ` [kernel-hardening] " Salvatore Mesoraca
2017-06-13  7:55       ` Salvatore Mesoraca
2017-06-13  7:55       ` Salvatore Mesoraca
2017-06-13  6:34   ` Christoph Hellwig
2017-06-13  6:34     ` [kernel-hardening] " Christoph Hellwig
2017-06-13  6:34     ` Christoph Hellwig
2017-06-13  6:34     ` Christoph Hellwig
2017-06-13  7:52     ` Salvatore Mesoraca
2017-06-13  7:52       ` [kernel-hardening] " Salvatore Mesoraca
2017-06-13  7:52       ` Salvatore Mesoraca
2017-06-13  7:52       ` Salvatore Mesoraca
2017-06-12 16:56 ` [PATCH 06/11] S.A.R.A. cred blob management Salvatore Mesoraca
2017-06-12 16:56   ` [kernel-hardening] " Salvatore Mesoraca
2017-06-12 16:56   ` Salvatore Mesoraca
2017-06-12 16:56 ` [PATCH 07/11] S.A.R.A. WX Protection Salvatore Mesoraca
2017-06-12 16:56   ` [kernel-hardening] " Salvatore Mesoraca
2017-06-12 16:56   ` Salvatore Mesoraca
2017-06-12 16:56 ` [PATCH 08/11] Creation of "pagefault_handler_x86" LSM hook Salvatore Mesoraca
2017-06-12 16:56   ` [kernel-hardening] " Salvatore Mesoraca
2017-06-12 16:56   ` Salvatore Mesoraca
2017-06-12 17:32   ` Thomas Gleixner
2017-06-12 17:32     ` [kernel-hardening] " Thomas Gleixner
2017-06-12 17:32     ` Thomas Gleixner
2017-06-13  7:41     ` Salvatore Mesoraca
2017-06-13  7:41       ` [kernel-hardening] " Salvatore Mesoraca
2017-06-13  7:41       ` Salvatore Mesoraca
2017-06-12 16:56 ` [PATCH 09/11] Trampoline emulation Salvatore Mesoraca
2017-06-12 16:56   ` [kernel-hardening] " Salvatore Mesoraca
2017-06-12 16:56   ` Salvatore Mesoraca
2017-06-13  0:02   ` kbuild test robot
2017-06-13  0:02     ` [kernel-hardening] " kbuild test robot
2017-06-13  0:02     ` kbuild test robot
2017-06-12 16:56 ` [PATCH 10/11] Allowing for stacking procattr support in S.A.R.A Salvatore Mesoraca
2017-06-12 16:56   ` [kernel-hardening] " Salvatore Mesoraca
2017-06-12 16:56   ` Salvatore Mesoraca
2017-06-12 16:57 ` [PATCH 11/11] S.A.R.A. WX Protection procattr interface Salvatore Mesoraca
2017-06-12 16:57   ` [kernel-hardening] " Salvatore Mesoraca
2017-06-12 16:57   ` Salvatore Mesoraca
2017-07-09 19:35 ` [kernel-hardening] [PATCH 00/11] S.A.R.A. a new stacked LSM Mickaël Salaün
2017-07-10  7:59   ` Salvatore Mesoraca
2017-07-10  7:59     ` Salvatore Mesoraca
2017-07-10 23:40     ` Mickaël Salaün
2017-07-11 16:58       ` Salvatore Mesoraca
2017-07-11 16:58         ` Salvatore Mesoraca
2017-07-11 17:49         ` Matt Brown
2017-07-11 17:49           ` Matt Brown
2017-07-11 19:31           ` Mimi Zohar
2017-07-11 19:31             ` Mimi Zohar
2017-07-13 12:39             ` Matt Brown
2017-07-13 12:39               ` Matt Brown
2017-07-13 15:19               ` Mimi Zohar
2017-07-13 15:19                 ` Mimi Zohar
2017-07-13 19:51                 ` Serge E. Hallyn
2017-07-13 19:51                   ` Serge E. Hallyn
2017-07-13 22:33                   ` Matt Brown
2017-07-13 22:33                     ` Matt Brown
2017-07-24  0:58                   ` Casey Schaufler
2017-07-24  0:58                     ` Casey Schaufler

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