Merge tag 'audit-pr-20200601' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

Pull audit updates from Paul Moore:
 "Summary of the significant patches:

   - Record information about binds/unbinds to the audit multicast
     socket. This helps identify which processes have/had access to the
     information in the audit stream.

   - Cleanup and add some additional information to the netfilter
     configuration events collected by audit.

   - Fix some of the audit error handling code so we don't leak network
     namespace references"

* tag 'audit-pr-20200601' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: add subj creds to NETFILTER_CFG record to
  audit: Replace zero-length array with flexible-array
  audit: make symbol 'audit_nfcfgs' static
  netfilter: add audit table unregister actions
  audit: tidy and extend netfilter_cfg x_tables
  audit: log audit netlink multicast bind and unbind
  audit: fix a net reference leak in audit_list_rules_send()
  audit: fix a net reference leak in audit_send_reply()

1 files changed, 5 insertions, 9 deletions

diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index cd2b034eef59..99a468be4a59 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -1408,15 +1408,9 @@ xt_replace_table(struct xt_table *table,
 		}
 	}
 
-#ifdef CONFIG_AUDIT
-	if (audit_enabled) {
-		audit_log(audit_context(), GFP_KERNEL,
-			  AUDIT_NETFILTER_CFG,
-			  "table=%s family=%u entries=%u",
-			  table->name, table->af, private->number);
-	}
-#endif
-
+	audit_log_nfcfg(table->name, table->af, private->number,
+			!private->number ? AUDIT_XT_OP_REGISTER :
+					   AUDIT_XT_OP_REPLACE);
 	return private;
 }
 EXPORT_SYMBOL_GPL(xt_replace_table);
@@ -1478,6 +1472,8 @@ void *xt_unregister_table(struct xt_table *table)
 	private = table->private;
 	list_del(&table->list);
 	mutex_unlock(&xt[table->af].mutex);
+	audit_log_nfcfg(table->name, table->af, private->number,
+			AUDIT_XT_OP_UNREGISTER);
 	kfree(table);
 
 	return private;