From: Mimi Zohar <zohar@linux.ibm.com>
To: Roberto Sassu <roberto.sassu@huaweicloud.com>,
dmitry.kasatkin@gmail.com, paul@paul-moore.com,
jmorris@namei.org, serge@hallyn.com,
stephen.smalley.work@gmail.com, eparis@parisplace.org,
casey@schaufler-ca.com
Cc: reiserfs-devel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-integrity@vger.kernel.org,
linux-security-module@vger.kernel.org, selinux@vger.kernel.org,
bpf@vger.kernel.org, kpsingh@kernel.org, keescook@chromium.org,
nicolas.bouchinet@clip-os.org,
Roberto Sassu <roberto.sassu@huawei.com>
Subject: Re: [PATCH v10 4/4] evm: Support multiple LSMs providing an xattr
Date: Tue, 11 Apr 2023 03:22:52 -0400 [thread overview]
Message-ID: <1496aa1d378c3d7dc1b112b0d81fa7459aaee143.camel@linux.ibm.com> (raw)
In-Reply-To: <20230331123221.3273328-5-roberto.sassu@huaweicloud.com>
On Fri, 2023-03-31 at 14:32 +0200, Roberto Sassu wrote:
> From: Roberto Sassu <roberto.sassu@huawei.com>
>
> Currently, evm_inode_init_security() processes a single LSM xattr from the
> array passed by security_inode_init_security(), and calculates the HMAC on
> it and other inode metadata.
>
> As the LSM infrastructure now can pass to EVM an array with multiple
> xattrs, scan them until the terminator (xattr name NULL), and calculate the
> HMAC on all of them.
>
> Also, double check that the xattrs array terminator is the first non-filled
> slot (obtained with lsm_get_xattr_slot()). Consumers of the xattrs array,
> such as the initxattrs() callbacks, rely on the terminator.
>
> Finally, change the name of the lsm_xattr parameter of evm_init_hmac() to
> xattrs, to reflect the new type of information passed.
>
> Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Reviewed-by: Mimi Zohar <zohar@linux.ibm.com>
next prev parent reply other threads:[~2023-04-11 7:23 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-31 12:32 [PATCH v10 0/4] evm: Do HMAC of multiple per LSM xattrs for new inodes Roberto Sassu
2023-03-31 12:32 ` [PATCH v10 1/4] reiserfs: Add security prefix to xattr name in reiserfs_security_write() Roberto Sassu
2023-04-04 18:25 ` Paul Moore
2023-03-31 12:32 ` [PATCH v10 2/4] security: Allow all LSMs to provide xattrs for inode_init_security hook Roberto Sassu
2023-04-04 18:54 ` Paul Moore
2023-04-05 2:08 ` Casey Schaufler
2023-04-05 9:43 ` Roberto Sassu
2023-04-05 19:59 ` Paul Moore
2023-04-05 20:43 ` Casey Schaufler
2023-04-05 20:49 ` Paul Moore
2023-04-05 21:07 ` Casey Schaufler
2023-04-06 9:14 ` Roberto Sassu
2023-04-06 16:17 ` Casey Schaufler
2023-04-06 9:08 ` Roberto Sassu
2023-04-11 7:22 ` Mimi Zohar
2023-04-11 7:53 ` Roberto Sassu
2023-04-11 16:42 ` Casey Schaufler
2023-04-11 17:23 ` [PATCH] Smack modifications for: " Roberto Sassu
2023-04-11 17:54 ` Casey Schaufler
2023-04-12 7:22 ` Roberto Sassu
2023-04-12 20:29 ` Casey Schaufler
2023-04-13 7:11 ` Roberto Sassu
2023-04-17 16:41 ` Casey Schaufler
2023-04-18 7:05 ` Roberto Sassu
2023-04-18 16:02 ` Casey Schaufler
2023-04-19 13:46 ` Roberto Sassu
2023-04-19 19:25 ` Mengchi Cheng
2023-04-20 8:48 ` Roberto Sassu
2023-05-08 12:29 ` Roberto Sassu
2023-05-09 23:44 ` Mengchi Cheng
2023-05-09 23:56 ` Casey Schaufler
2023-04-19 21:00 ` Casey Schaufler
2023-04-20 8:50 ` Roberto Sassu
2023-04-20 10:44 ` Mimi Zohar
2023-04-20 14:10 ` Roberto Sassu
2023-04-11 17:25 ` [PATCH v10 2/4] " Roberto Sassu
2023-04-11 17:40 ` Casey Schaufler
2023-03-31 12:32 ` [PATCH v10 3/4] evm: Align evm_inode_init_security() definition with LSM infrastructure Roberto Sassu
2023-04-04 18:56 ` Paul Moore
2023-04-11 7:22 ` Mimi Zohar
2023-04-11 7:58 ` Roberto Sassu
2023-03-31 12:32 ` [PATCH v10 4/4] evm: Support multiple LSMs providing an xattr Roberto Sassu
2023-04-11 7:22 ` Mimi Zohar [this message]
2023-04-03 10:36 ` [PATCH v10 0/4] evm: Do HMAC of multiple per LSM xattrs for new inodes Mimi Zohar
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