From f7056d64ae101d910f965a2e39831f635ef7891b Mon Sep 17 00:00:00 2001
From: David Woodhouse <dwmw2@shinybook.infradead.org>
Date: Mon, 20 Jun 2005 16:07:33 +0100
Subject: [PATCH] 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>
---
kernel/auditsc.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 6b4fbb1c01295..48a39579c45c2 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -477,6 +477,9 @@ static enum audit_state audit_filter_syscall(struct task_struct *tsk,
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 @@ int audit_filter_user(struct task_struct *tsk, int type)
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 @@ void audit_free(struct task_struct *tsk)
/* 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 @@ void audit_syscall_exit(struct task_struct *tsk, int valid, long return_code)
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;
--
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