Re: [PATCH v35 26/29] Audit: Add record for multiple task security contexts

Paul Moore
2022-04-22T16:29:03Z

On Mon, Apr 18, 2022 at 11:12 AM Casey Schaufler <casey@schaufler-ca.com> wrote:
>
> Create a new audit record AUDIT_MAC_TASK_CONTEXTS.
> An example of the MAC_TASK_CONTEXTS (1420) record is:
>
> type=MAC_TASK_CONTEXTS[1420]
> msg=audit(1600880931.832:113)
> subj_apparmor=unconfined
> subj_smack=_
>
> When an audit event includes a AUDIT_MAC_TASK_CONTEXTS record
> the "subj=" field in other records in the event will be "subj=?".
> An AUDIT_MAC_TASK_CONTEXTS record is supplied when the system has
> multiple security modules that may make access decisions based
> on a subject security context.
>
> Functions are created to manage the skb list in the audit_buffer.
>
> Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
> ---
> include/uapi/linux/audit.h | 1 +
> kernel/audit.c | 93 +++++++++++++++++++++++++++++++++++---
> 2 files changed, 88 insertions(+), 6 deletions(-)

The audit_buffer_aux_new() and audit_buffer_aux_end() belong in patch
25/29, but otherwise this looks okay.

Acked-by: Paul Moore <paul@paul-moore.com>

--
paul-moore.com