On Tue, 2022-10-18 at 17:07 +0200, Christian Brauner wrote:

On Thu, Oct 13, 2022 at 03:36:48PM -0700, Kees Cook wrote:

quoted

Move the xattr IMA hooks into normal LSM layer. As with SELinux and
Smack, handle calling cap_inode_setxattr() internally.

Cc: Mimi Zohar <zohar@linux.ibm.com>
Cc: Dmitry Kasatkin <dmitry.kasatkin@gmail.com>
Cc: Paul Moore <paul@paul-moore.com>
Cc: James Morris <jmorris@namei.org>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Cc: Borislav Petkov <redacted>
Cc: Jonathan McDowell <redacted>
Cc: Takashi Iwai <redacted>
Cc: Petr Vorel <pvorel@suse.cz>
Cc: linux-integrity@vger.kernel.org
Cc: linux-security-module@vger.kernel.org
Signed-off-by: Kees Cook <redacted>
---

I like that changes obviously but in general, does IMA depend on being
called _after_ all other LSMs or is this just a historical artifact?

Calculating the EVM HMAC must be last, after the other security xattrs
have been updated.

-- 
thanks,

Mimi