From: Roberto Sassu <roberto.sassu@huaweicloud.com>
To: Al Viro <viro@zeniv.linux.org.uk>, casey@schaufler-ca.com
Cc: brauner@kernel.org, chuck.lever@oracle.com, jlayton@kernel.org,
neilb@suse.de, kolga@netapp.com, Dai.Ngo@oracle.com,
tom@talpey.com, paul@paul-moore.com, jmorris@namei.org,
serge@hallyn.com, zohar@linux.ibm.com,
dmitry.kasatkin@gmail.com, eric.snowberg@oracle.com,
dhowells@redhat.com, jarkko@kernel.org,
stephen.smalley.work@gmail.com, eparis@parisplace.org,
shuah@kernel.org, mic@digikod.net, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org,
linux-security-module@vger.kernel.org,
linux-integrity@vger.kernel.org, keyrings@vger.kernel.org,
selinux@vger.kernel.org, linux-kselftest@vger.kernel.org,
Roberto Sassu <roberto.sassu@huawei.com>
Subject: Re: [PATCH v9 13/25] security: Introduce file_release hook
Date: Tue, 16 Jan 2024 09:47:34 +0100 [thread overview]
Message-ID: <3b440f064a1ae04d69f7e85f4077f8406c0eac67.camel@huaweicloud.com> (raw)
In-Reply-To: <20240115191508.GG1674809@ZenIV>
On Mon, 2024-01-15 at 19:15 +0000, Al Viro wrote:
> On Mon, Jan 15, 2024 at 07:17:57PM +0100, Roberto Sassu wrote:
> > From: Roberto Sassu <roberto.sassu@huawei.com>
> >
> > In preparation for moving IMA and EVM to the LSM infrastructure, introduce
> > the file_release hook.
> >
> > IMA calculates at file close the new digest of the file content and writes
> > it to security.ima, so that appraisal at next file access succeeds.
> >
> > An LSM could implement an exclusive access scheme for files, only allowing
> > access to files that have no references.
>
> Elaborate that last part, please.
Apologies, I didn't understand that either. Casey?
Thanks
Roberto
next prev parent reply other threads:[~2024-01-16 8:47 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-15 18:17 [PATCH v9 00/25] security: Move IMA and EVM to the LSM infrastructure Roberto Sassu
2024-01-15 18:17 ` [PATCH v9 01/25] ima: Align ima_inode_post_setattr() definition with " Roberto Sassu
2024-02-08 3:18 ` [PATCH v9 1/25] " Paul Moore
2024-01-15 18:17 ` [PATCH v9 02/25] ima: Align ima_file_mprotect() " Roberto Sassu
2024-02-08 3:18 ` [PATCH v9 2/25] " Paul Moore
2024-01-15 18:17 ` [PATCH v9 03/25] ima: Align ima_inode_setxattr() " Roberto Sassu
2024-02-08 3:18 ` [PATCH v9 3/25] " Paul Moore
2024-01-15 18:17 ` [PATCH v9 04/25] ima: Align ima_inode_removexattr() " Roberto Sassu
2024-02-08 3:18 ` [PATCH v9 4/25] " Paul Moore
2024-01-15 18:17 ` [PATCH v9 05/25] ima: Align ima_post_read_file() " Roberto Sassu
2024-02-08 3:18 ` [PATCH v9 5/25] " Paul Moore
2024-01-15 18:17 ` [PATCH v9 06/25] evm: Align evm_inode_post_setattr() " Roberto Sassu
2024-02-08 3:18 ` [PATCH v9 6/25] " Paul Moore
2024-01-15 18:17 ` [PATCH v9 07/25] evm: Align evm_inode_setxattr() " Roberto Sassu
2024-02-08 3:18 ` [PATCH v9 7/25] " Paul Moore
2024-01-15 18:17 ` [PATCH v9 08/25] evm: Align evm_inode_post_setxattr() " Roberto Sassu
2024-02-08 3:18 ` [PATCH v9 8/25] " Paul Moore
2024-01-15 18:17 ` [PATCH v9 09/25] security: Align inode_setattr hook definition with EVM Roberto Sassu
2024-02-08 3:18 ` [PATCH v9 9/25] " Paul Moore
2024-01-15 18:17 ` [PATCH v9 10/25] security: Introduce inode_post_setattr hook Roberto Sassu
2024-02-08 3:18 ` Paul Moore
2024-02-09 10:17 ` Christian Brauner
2024-01-15 18:17 ` [PATCH v9 11/25] security: Introduce inode_post_removexattr hook Roberto Sassu
2024-02-08 3:18 ` Paul Moore
2024-02-09 10:17 ` Christian Brauner
2024-01-15 18:17 ` [PATCH v9 12/25] security: Introduce file_post_open hook Roberto Sassu
2024-02-08 3:18 ` Paul Moore
2024-02-09 9:56 ` Christian Brauner
2024-02-09 9:59 ` Christian Brauner
2024-02-09 10:12 ` Christian Brauner
2024-02-09 10:46 ` Roberto Sassu
2024-02-09 11:34 ` Christian Brauner
2024-02-09 12:02 ` Roberto Sassu
2024-02-12 21:00 ` Mimi Zohar
2024-02-12 21:16 ` Paul Moore
2024-02-13 12:58 ` Roberto Sassu
2024-02-13 15:33 ` Paul Moore
2024-02-14 20:07 ` Mimi Zohar
2024-02-14 21:21 ` Paul Moore
2024-02-15 8:16 ` Mimi Zohar
2024-02-15 15:02 ` Paul Moore
2024-01-15 18:17 ` [PATCH v9 13/25] security: Introduce file_release hook Roberto Sassu
2024-01-15 19:15 ` Al Viro
2024-01-16 8:47 ` Roberto Sassu [this message]
2024-01-16 16:51 ` Casey Schaufler
2024-01-16 17:33 ` Al Viro
2024-01-16 18:18 ` Casey Schaufler
2024-02-08 3:18 ` Paul Moore
2024-02-09 10:15 ` Christian Brauner
2024-02-12 17:21 ` Stefan Berger
2024-01-15 18:17 ` [PATCH v9 14/25] security: Introduce path_post_mknod hook Roberto Sassu
2024-02-08 3:18 ` Paul Moore
2024-02-09 9:54 ` Christian Brauner
2024-02-12 17:23 ` Stefan Berger
2024-01-15 18:17 ` [PATCH v9 15/25] security: Introduce inode_post_create_tmpfile hook Roberto Sassu
2024-02-08 3:18 ` Paul Moore
2024-02-09 9:53 ` Christian Brauner
2024-02-12 17:26 ` Stefan Berger
2024-01-15 18:18 ` [PATCH v9 16/25] security: Introduce inode_post_set_acl hook Roberto Sassu
2024-02-08 3:18 ` Paul Moore
2024-02-09 9:51 ` Christian Brauner
2024-01-15 18:18 ` [PATCH v9 17/25] security: Introduce inode_post_remove_acl hook Roberto Sassu
2024-02-08 3:18 ` Paul Moore
2024-02-09 9:52 ` Christian Brauner
2024-01-15 18:18 ` [PATCH v9 18/25] security: Introduce key_post_create_or_update hook Roberto Sassu
2024-02-08 3:18 ` Paul Moore
2024-01-15 18:18 ` [PATCH v9 19/25] integrity: Move integrity_kernel_module_request() to IMA Roberto Sassu
2024-02-08 3:18 ` Paul Moore
2024-02-12 17:37 ` Stefan Berger
2024-02-12 17:56 ` Paul Moore
2024-02-12 20:28 ` Stefan Berger
2024-02-13 8:57 ` Roberto Sassu
2024-02-13 16:31 ` Stefan Berger
2024-02-15 9:29 ` Roberto Sassu
2024-01-15 18:18 ` [PATCH v9 20/25] ima: Move to LSM infrastructure Roberto Sassu
2024-01-16 18:57 ` Casey Schaufler
2024-02-08 3:18 ` Paul Moore
2024-02-09 9:50 ` Christian Brauner
2024-02-12 17:45 ` Stefan Berger
2024-01-15 18:18 ` [PATCH v9 21/25] ima: Move IMA-Appraisal " Roberto Sassu
2024-01-16 19:03 ` Casey Schaufler
2024-02-08 3:18 ` Paul Moore
2024-02-09 9:45 ` Christian Brauner
2024-01-15 18:18 ` [PATCH v9 22/25] evm: Move " Roberto Sassu
2024-02-08 3:18 ` Paul Moore
2024-02-09 9:48 ` Christian Brauner
2024-02-12 18:26 ` Stefan Berger
2024-01-15 18:18 ` [PATCH v9 23/25] evm: Make it independent from 'integrity' LSM Roberto Sassu
2024-01-16 19:39 ` Casey Schaufler
2024-02-08 3:18 ` Paul Moore
2024-02-12 19:13 ` Stefan Berger
2024-01-15 18:18 ` [PATCH v9 24/25] ima: " Roberto Sassu
2024-01-16 19:40 ` Casey Schaufler
2024-02-12 19:47 ` Stefan Berger
2024-01-15 18:18 ` [PATCH v9 25/25] integrity: Remove LSM Roberto Sassu
2024-01-16 19:41 ` Casey Schaufler
2024-02-08 3:18 ` Paul Moore
2024-02-12 19:50 ` Stefan Berger
2024-02-08 3:18 ` [PATCH v9 0/25] security: Move IMA and EVM to the LSM infrastructure Paul Moore
2024-02-08 8:05 ` Roberto Sassu
2024-02-08 14:16 ` Paul Moore
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