On Mon, Apr 18, 2022 at 11:14 AM Casey Schaufler [off-list ref] wrote:

Create a new audit record AUDIT_MAC_OBJ_CONTEXTS.
An example of the MAC_OBJ_CONTEXTS (1421) record is:

    type=MAC_OBJ_CONTEXTS[1421]
    msg=audit(1601152467.009:1050):
    obj_selinux=unconfined_u:object_r:user_home_t:s0

When an audit event includes a AUDIT_MAC_OBJ_CONTEXTS record
the "obj=" field in other records in the event will be "obj=?".
An AUDIT_MAC_OBJ_CONTEXTS record is supplied when the system has
multiple security modules that may make access decisions based
on an object security context.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
---
 include/linux/audit.h      |  5 +++
 include/uapi/linux/audit.h |  1 +
 kernel/audit.c             | 47 +++++++++++++++++++++++
 kernel/auditsc.c           | 79 ++++++++++++--------------------------
 4 files changed, 77 insertions(+), 55 deletions(-)

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

-- 
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