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

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(a)schaufler-ca.com&gt; --- include/uapi/linux/audit.h | 1 + kernel/audit.c | 93 +++++++++++++++++++++++++++++++++++--- 2 files changed, 88 insertions(+), 6 deletions(-)