Merge tag 'audit-pr-20240911' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

Pull audit updates from Paul Moore:

 - Fix some remaining problems with PID/TGID reporting

   When most users think about PIDs, what they are really thinking about
   is the TGID. This commit shifts the audit PID logging and filtering
   to use the TGID value which should provide a more meaningful audit
   stream and filtering experience for users.

 - Migrate to the str_enabled_disabled() helper

   Evidently we have helper functions that help ensure if we mistype
   "enabled" or "disabled" it is now caught at compile time. I guess
   we're fancy now.

* tag 'audit-pr-20240911' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: Make use of str_enabled_disabled() helper
  audit: use task_tgid_nr() instead of task_pid_nr()

kernel/audit.c

@@ -1612,7 +1612,7 @@ static void audit_log_multicast(int group, const char *op, int err)
 	cred = current_cred();
 	tty = audit_get_tty();
 	audit_log_format(ab, "pid=%u uid=%u auid=%u tty=%s ses=%u",
-			 task_pid_nr(current),
+			 task_tgid_nr(current),
 			 from_kuid(&init_user_ns, cred->uid),
 			 from_kuid(&init_user_ns, audit_get_loginuid(current)),
 			 tty ? tty_name(tty) : "(none)",
@@ -1706,7 +1706,7 @@ static int __init audit_init(void)
 	audit_cmd_mutex.owner = NULL;
 
 	pr_info("initializing netlink subsys (%s)\n",
-		audit_default ? "enabled" : "disabled");
+		str_enabled_disabled(audit_default));
 	register_pernet_subsys(&audit_net_ops);
 
 	audit_initialized = AUDIT_INITIALIZED;

kernel/auditfilter.c

@@ -1344,7 +1344,7 @@ int audit_filter(int msgtype, unsigned int listtype)
 
 			switch (f->type) {
 			case AUDIT_PID:
-				pid = task_pid_nr(current);
+				pid = task_tgid_nr(current);
 				result = audit_comparator(pid, f->op, f->val);
 				break;
 			case AUDIT_UID:

kernel/auditsc.c

@@ -2933,7 +2933,7 @@ void __audit_log_nfcfg(const char *name, u8 af, unsigned int nentries,
 	audit_log_format(ab, "table=%s family=%u entries=%u op=%s",
 			 name, af, nentries, audit_nfcfgs[op].s);
 
-	audit_log_format(ab, " pid=%u", task_pid_nr(current));
+	audit_log_format(ab, " pid=%u", task_tgid_nr(current));
 	audit_log_task_context(ab); /* subj= */
 	audit_log_format(ab, " comm=");
 	audit_log_untrustedstring(ab, get_task_comm(comm, current));