AUDIT: Really exempt auditd from having its actions audited.
We were only avoiding it on syscall exit before; now stop _everything_.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 6b4fbb1..48a3957 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -477,6 +477,9 @@
int word = AUDIT_WORD(ctx->major);
int bit = AUDIT_BIT(ctx->major);
+ if (audit_pid && ctx->pid == audit_pid)
+ return AUDIT_DISABLED;
+
rcu_read_lock();
list_for_each_entry_rcu(e, list, list) {
if ((e->rule.mask[word] & bit) == bit
@@ -494,6 +497,9 @@
struct audit_entry *e;
enum audit_state state;
+ if (audit_pid && tsk->pid == audit_pid)
+ return AUDIT_DISABLED;
+
rcu_read_lock();
list_for_each_entry_rcu(e, &audit_filter_list[AUDIT_FILTER_USER], list) {
if (audit_filter_rules(tsk, &e->rule, NULL, &state)) {
@@ -816,7 +822,7 @@
/* Check for system calls that do not go through the exit
* function (e.g., exit_group), then free context block. */
- if (context->in_syscall && context->auditable && context->pid != audit_pid)
+ if (context->in_syscall && context->auditable)
audit_log_exit(context);
audit_free_context(context);
@@ -921,7 +927,7 @@
if (likely(!context))
return;
- if (context->in_syscall && context->auditable && context->pid != audit_pid)
+ if (context->in_syscall && context->auditable)
audit_log_exit(context);
context->in_syscall = 0;