From: Fan Wu <wufan@linux.microsoft.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: corbet@lwn.net, zohar@linux.ibm.com, jmorris@namei.org,
serge@hallyn.com, tytso@mit.edu, ebiggers@kernel.org,
axboe@kernel.dk, agk@redhat.com, snitzer@kernel.org,
eparis@redhat.com, paul@paul-moore.com,
linux-doc@vger.kernel.org, linux-integrity@vger.kernel.org,
linux-security-module@vger.kernel.org,
linux-fscrypt@vger.kernel.org, linux-block@vger.kernel.org,
dm-devel@redhat.com, linux-audit@redhat.com,
roberto.sassu@huawei.com, linux-kernel@vger.kernel.org,
Deven Bowers <deven.desai@linux.microsoft.com>
Subject: Re: [RFC PATCH v9 09/16] block|security: add LSM blob to block_device
Date: Tue, 31 Jan 2023 15:01:00 -0800 [thread overview]
Message-ID: <20230131230100.GA30104@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net> (raw)
In-Reply-To: <Y9jXJ8FrmAnzob7w@infradead.org>
On Tue, Jan 31, 2023 at 12:53:59AM -0800, Christoph Hellwig wrote:
> On Mon, Jan 30, 2023 at 02:57:24PM -0800, Fan Wu wrote:
> > From: Deven Bowers <deven.desai@linux.microsoft.com>
> >
> > block_device structures can have valuable security properties,
> > based on how they are created, and what subsystem manages them.
>
> That's a lot of cloudy talk but no real explanation.
Sorry for being too general here. Currently the only use target of this hook is dm-verity. We use the newly added security hook to save the dm-verity roothash and signature to the new bdev security blob during the bdev creation time, so LSMs can leverage this information to protect the system.
I will add this example in the next version.
-Fan
WARNING: multiple messages have this Message-ID (diff)
From: Fan Wu <wufan@linux.microsoft.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: axboe@kernel.dk, linux-block@vger.kernel.org, tytso@mit.edu,
paul@paul-moore.com, dm-devel@redhat.com, corbet@lwn.net,
roberto.sassu@huawei.com,
Deven Bowers <deven.desai@linux.microsoft.com>,
linux-doc@vger.kernel.org, snitzer@kernel.org, jmorris@namei.org,
zohar@linux.ibm.com, linux-kernel@vger.kernel.org,
ebiggers@kernel.org, linux-security-module@vger.kernel.org,
linux-audit@redhat.com, eparis@redhat.com,
linux-fscrypt@vger.kernel.org, linux-integrity@vger.kernel.org,
agk@redhat.com, serge@hallyn.com
Subject: Re: [dm-devel] [RFC PATCH v9 09/16] block|security: add LSM blob to block_device
Date: Tue, 31 Jan 2023 15:01:00 -0800 [thread overview]
Message-ID: <20230131230100.GA30104@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net> (raw)
In-Reply-To: <Y9jXJ8FrmAnzob7w@infradead.org>
On Tue, Jan 31, 2023 at 12:53:59AM -0800, Christoph Hellwig wrote:
> On Mon, Jan 30, 2023 at 02:57:24PM -0800, Fan Wu wrote:
> > From: Deven Bowers <deven.desai@linux.microsoft.com>
> >
> > block_device structures can have valuable security properties,
> > based on how they are created, and what subsystem manages them.
>
> That's a lot of cloudy talk but no real explanation.
Sorry for being too general here. Currently the only use target of this hook is dm-verity. We use the newly added security hook to save the dm-verity roothash and signature to the new bdev security blob during the bdev creation time, so LSMs can leverage this information to protect the system.
I will add this example in the next version.
-Fan
--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel
WARNING: multiple messages have this Message-ID (diff)
From: Fan Wu <wufan@linux.microsoft.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: axboe@kernel.dk, linux-block@vger.kernel.org, tytso@mit.edu,
dm-devel@redhat.com, corbet@lwn.net, roberto.sassu@huawei.com,
Deven Bowers <deven.desai@linux.microsoft.com>,
linux-doc@vger.kernel.org, snitzer@kernel.org, jmorris@namei.org,
zohar@linux.ibm.com, linux-kernel@vger.kernel.org,
ebiggers@kernel.org, linux-security-module@vger.kernel.org,
linux-audit@redhat.com, eparis@redhat.com,
linux-fscrypt@vger.kernel.org, linux-integrity@vger.kernel.org,
agk@redhat.com, serge@hallyn.com
Subject: Re: [RFC PATCH v9 09/16] block|security: add LSM blob to block_device
Date: Tue, 31 Jan 2023 15:01:00 -0800 [thread overview]
Message-ID: <20230131230100.GA30104@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net> (raw)
In-Reply-To: <Y9jXJ8FrmAnzob7w@infradead.org>
On Tue, Jan 31, 2023 at 12:53:59AM -0800, Christoph Hellwig wrote:
> On Mon, Jan 30, 2023 at 02:57:24PM -0800, Fan Wu wrote:
> > From: Deven Bowers <deven.desai@linux.microsoft.com>
> >
> > block_device structures can have valuable security properties,
> > based on how they are created, and what subsystem manages them.
>
> That's a lot of cloudy talk but no real explanation.
Sorry for being too general here. Currently the only use target of this hook is dm-verity. We use the newly added security hook to save the dm-verity roothash and signature to the new bdev security blob during the bdev creation time, so LSMs can leverage this information to protect the system.
I will add this example in the next version.
-Fan
--
Linux-audit mailing list
Linux-audit@redhat.com
https://listman.redhat.com/mailman/listinfo/linux-audit
next prev parent reply other threads:[~2023-01-31 23:01 UTC|newest]
Thread overview: 225+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-30 22:57 [RFC PATCH v9 00/16] Integrity Policy Enforcement LSM (IPE) Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-01-30 22:57 ` [RFC PATCH v9 01/16] security: add ipe lsm Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-03-02 19:00 ` Paul Moore
2023-03-02 19:00 ` Paul Moore
2023-03-02 19:00 ` [dm-devel] " Paul Moore
2023-04-06 19:20 ` Fan Wu
2023-04-06 19:20 ` Fan Wu
2023-04-06 19:20 ` [dm-devel] " Fan Wu
2023-01-30 22:57 ` [RFC PATCH v9 02/16] ipe: add policy parser Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-01-31 10:53 ` Roberto Sassu
2023-01-31 10:53 ` [dm-devel] " Roberto Sassu
2023-01-31 10:53 ` Roberto Sassu
2023-02-01 22:38 ` Fan Wu
2023-02-01 22:38 ` Fan Wu
2023-02-01 22:38 ` [dm-devel] " Fan Wu
2023-03-02 19:02 ` Paul Moore
2023-03-02 19:02 ` Paul Moore
2023-03-02 19:02 ` [dm-devel] " Paul Moore
2023-04-06 20:00 ` Fan Wu
2023-04-06 20:00 ` Fan Wu
2023-04-06 20:00 ` [dm-devel] " Fan Wu
2023-04-11 19:13 ` Paul Moore
2023-04-11 19:13 ` Paul Moore
2023-04-11 19:13 ` [dm-devel] " Paul Moore
2023-01-30 22:57 ` [RFC PATCH v9 03/16] ipe: add evaluation loop and introduce 'boot_verified' as a trust provider Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-01-31 10:29 ` Roberto Sassu
2023-01-31 10:29 ` [dm-devel] " Roberto Sassu
2023-01-31 10:29 ` Roberto Sassu
2023-01-31 15:49 ` Roberto Sassu
2023-01-31 15:49 ` [dm-devel] " Roberto Sassu
2023-01-31 15:49 ` Roberto Sassu
2023-02-10 23:21 ` Fan Wu
2023-02-10 23:21 ` Fan Wu
2023-02-10 23:21 ` [dm-devel] " Fan Wu
2023-03-02 2:33 ` Paul Moore
2023-03-02 2:33 ` Paul Moore
2023-03-02 2:33 ` [dm-devel] " Paul Moore
2023-03-02 19:03 ` Paul Moore
2023-03-02 19:03 ` Paul Moore
2023-03-02 19:03 ` Paul Moore
2023-04-10 18:53 ` Fan Wu
2023-04-10 18:53 ` Fan Wu
2023-04-10 18:53 ` [dm-devel] " Fan Wu
2023-04-11 20:32 ` Paul Moore
2023-04-11 20:32 ` Paul Moore
2023-04-11 20:32 ` [dm-devel] " Paul Moore
2023-01-30 22:57 ` [RFC PATCH v9 04/16] security: add new securityfs delete function Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-01-30 22:57 ` [RFC PATCH v9 05/16] ipe: add userspace interface Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-01-31 10:49 ` Roberto Sassu
2023-01-31 10:49 ` [dm-devel] " Roberto Sassu
2023-01-31 10:49 ` Roberto Sassu
2023-02-01 19:46 ` Fan Wu
2023-02-01 19:46 ` [dm-devel] " Fan Wu
2023-02-01 19:46 ` Fan Wu
2023-02-05 8:42 ` kernel test robot
2023-03-02 19:04 ` Paul Moore
2023-03-02 19:04 ` Paul Moore
2023-03-02 19:04 ` [dm-devel] " Paul Moore
2023-04-10 19:10 ` Fan Wu
2023-04-10 19:10 ` Fan Wu
2023-04-10 19:10 ` [dm-devel] " Fan Wu
2023-04-11 21:45 ` Paul Moore
2023-04-11 21:45 ` Paul Moore
2023-04-11 21:45 ` [dm-devel] " Paul Moore
2023-04-12 23:36 ` Fan Wu
2023-04-12 23:36 ` Fan Wu
2023-04-12 23:36 ` [dm-devel] " Fan Wu
2023-04-13 18:45 ` Paul Moore
2023-04-13 18:45 ` Paul Moore
2023-04-13 18:45 ` [dm-devel] " Paul Moore
2023-04-17 18:06 ` Fan Wu
2023-04-17 18:06 ` Fan Wu
2023-04-17 18:06 ` [dm-devel] " Fan Wu
2023-04-17 20:16 ` Paul Moore
2023-04-17 20:16 ` Paul Moore
2023-04-17 20:16 ` [dm-devel] " Paul Moore
2023-04-17 21:18 ` Fan Wu
2023-04-17 21:18 ` Fan Wu
2023-04-17 21:18 ` [dm-devel] " Fan Wu
2023-04-17 21:31 ` Paul Moore
2023-04-17 21:31 ` Paul Moore
2023-04-17 21:31 ` [dm-devel] " Paul Moore
2023-01-30 22:57 ` [RFC PATCH v9 06/16] ipe: add LSM hooks on execution and kernel read Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-01-31 12:51 ` Roberto Sassu
2023-01-31 12:51 ` [dm-devel] " Roberto Sassu
2023-01-31 12:51 ` Roberto Sassu
2023-02-09 22:42 ` Fan Wu
2023-02-09 22:42 ` Fan Wu
2023-02-09 22:42 ` [dm-devel] " Fan Wu
2023-03-02 19:05 ` Paul Moore
2023-03-02 19:05 ` Paul Moore
2023-03-02 19:05 ` [dm-devel] " Paul Moore
2023-04-10 21:22 ` Fan Wu
2023-04-10 21:22 ` Fan Wu
2023-04-10 21:22 ` [dm-devel] " Fan Wu
2023-01-30 22:57 ` [RFC PATCH v9 07/16] uapi|audit|ipe: add ipe auditing support Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-01-31 12:57 ` Roberto Sassu
2023-01-31 12:57 ` [dm-devel] " Roberto Sassu
2023-01-31 12:57 ` Roberto Sassu
2023-01-31 17:10 ` Steve Grubb
2023-01-31 17:10 ` [dm-devel] " Steve Grubb
2023-01-31 17:10 ` Steve Grubb
2023-03-02 19:05 ` [dm-devel] " Paul Moore
2023-03-02 19:05 ` Paul Moore
2023-03-02 19:05 ` Paul Moore
2023-03-16 22:53 ` Fan Wu
2023-03-16 22:53 ` Fan Wu
2023-03-16 22:53 ` [dm-devel] " Fan Wu
2023-04-11 23:07 ` Paul Moore
2023-04-11 23:07 ` Paul Moore
2023-04-11 23:07 ` [dm-devel] " Paul Moore
2023-04-11 23:21 ` Paul Moore
2023-04-11 23:21 ` Paul Moore
2023-04-11 23:21 ` [dm-devel] " Paul Moore
2023-01-30 22:57 ` [RFC PATCH v9 08/16] ipe: add permissive toggle Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-03-02 19:06 ` Paul Moore
2023-03-02 19:06 ` Paul Moore
2023-03-02 19:06 ` [dm-devel] " Paul Moore
2023-01-30 22:57 ` [RFC PATCH v9 09/16] block|security: add LSM blob to block_device Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-01-31 8:53 ` Christoph Hellwig
2023-01-31 8:53 ` Christoph Hellwig
2023-01-31 8:53 ` [dm-devel] " Christoph Hellwig
2023-01-31 23:01 ` Fan Wu [this message]
2023-01-31 23:01 ` Fan Wu
2023-01-31 23:01 ` [dm-devel] " Fan Wu
2023-03-02 19:07 ` Paul Moore
2023-03-02 19:07 ` Paul Moore
2023-03-02 19:07 ` [dm-devel] " Paul Moore
2023-01-30 22:57 ` [RFC PATCH v9 10/16] dm-verity: consume root hash digest and signature data via LSM hook Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-01-31 13:22 ` Roberto Sassu
2023-01-31 13:22 ` [dm-devel] " Roberto Sassu
2023-01-31 13:22 ` Roberto Sassu
2023-02-01 23:26 ` Fan Wu
2023-02-01 23:26 ` Fan Wu
2023-02-01 23:26 ` [dm-devel] " Fan Wu
2023-02-02 8:21 ` Roberto Sassu
2023-02-02 8:21 ` [dm-devel] " Roberto Sassu
2023-02-02 8:21 ` Roberto Sassu
2023-02-07 23:52 ` Fan Wu
2023-02-07 23:52 ` Fan Wu
2023-02-07 23:52 ` [dm-devel] " Fan Wu
2023-02-01 4:10 ` kernel test robot
2023-01-30 22:57 ` [RFC PATCH v9 11/16] ipe: add support for dm-verity as a trust provider Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-01-31 1:42 ` kernel test robot
2023-03-02 19:08 ` Paul Moore
2023-03-02 19:08 ` Paul Moore
2023-03-02 19:08 ` [dm-devel] " Paul Moore
2023-03-16 22:10 ` Fan Wu
2023-03-16 22:10 ` Fan Wu
2023-03-16 22:10 ` [dm-devel] " Fan Wu
2023-01-30 22:57 ` [RFC PATCH v9 12/16] fsverity: consume builtin signature via LSM hook Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-02-09 3:30 ` Eric Biggers
2023-02-09 3:30 ` Eric Biggers
2023-02-09 3:30 ` [dm-devel] " Eric Biggers
2023-02-09 22:21 ` Fan Wu
2023-02-09 22:21 ` Fan Wu
2023-02-09 22:21 ` [dm-devel] " Fan Wu
2023-01-30 22:57 ` [RFC PATCH v9 13/16] ipe: enable support for fs-verity as a trust provider Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-01-31 14:00 ` Roberto Sassu
2023-01-31 14:00 ` [dm-devel] " Roberto Sassu
2023-01-31 14:00 ` Roberto Sassu
2023-02-01 23:50 ` Fan Wu
2023-02-01 23:50 ` Fan Wu
2023-02-01 23:50 ` [dm-devel] " Fan Wu
2023-02-02 9:51 ` Roberto Sassu
2023-02-02 9:51 ` [dm-devel] " Roberto Sassu
2023-02-02 9:51 ` Roberto Sassu
2023-02-08 0:16 ` Fan Wu
2023-02-08 0:16 ` Fan Wu
2023-02-08 0:16 ` [dm-devel] " Fan Wu
2023-01-30 22:57 ` [RFC PATCH v9 14/16] scripts: add boot policy generation program Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-01-30 22:57 ` [RFC PATCH v9 15/16] ipe: kunit test for parser Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-01-30 22:57 ` [RFC PATCH v9 16/16] documentation: add ipe documentation Fan Wu
2023-01-30 22:57 ` Fan Wu
2023-01-30 22:57 ` [dm-devel] " Fan Wu
2023-01-31 3:59 ` Bagas Sanjaya
2023-01-31 3:59 ` Bagas Sanjaya
2023-01-31 3:59 ` [dm-devel] " Bagas Sanjaya
2023-02-02 0:19 ` Fan Wu
2023-02-02 0:19 ` Fan Wu
2023-02-02 0:19 ` [dm-devel] " Fan Wu
2023-01-31 14:22 ` [RFC PATCH v9 00/16] Integrity Policy Enforcement LSM (IPE) Roberto Sassu
2023-01-31 14:22 ` [dm-devel] " Roberto Sassu
2023-01-31 14:22 ` Roberto Sassu
2023-02-01 0:48 ` Fan Wu
2023-02-01 0:48 ` Fan Wu
2023-02-01 0:48 ` [dm-devel] " Fan Wu
2023-02-02 10:48 ` Roberto Sassu
2023-02-02 10:48 ` [dm-devel] " Roberto Sassu
2023-02-02 10:48 ` Roberto Sassu
2023-02-08 0:31 ` Fan Wu
2023-02-08 0:31 ` Fan Wu
2023-02-08 0:31 ` [dm-devel] " Fan Wu
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