Commit 7ca00264 authored by David Woodhouse's avatar David Woodhouse
Browse files

AUDIT: Quis Custodiet Ipsos Custodes? 



Nobody does. Really, it gets very silly if auditd is recording its
own actions.

Signed-off-by: default avatarDavid Woodhouse <dwmw2@infradead.org>
parent cd77b821

kernel/auditsc.c

+4 −3
Original line number Original line Diff line number Diff line
@@ -169,6 +169,8 @@ struct audit_entry { 
	struct audit_rule rule;

	struct audit_rule rule;

};

};





extern int audit_pid;



/* Check to see if two rules are identical.  It is called from

/* Check to see if two rules are identical.  It is called from

 * audit_del_rule during AUDIT_DEL. */

 * audit_del_rule during AUDIT_DEL. */

static int audit_compare_rule(struct audit_rule *a, struct audit_rule *b)

static int audit_compare_rule(struct audit_rule *a, struct audit_rule *b)
@@ -768,7 +770,7 @@ void audit_free(struct task_struct *tsk) 




	/* Check for system calls that do not go through the exit

	/* Check for system calls that do not go through the exit

	 * function (e.g., exit_group), then free context block. */

	 * function (e.g., exit_group), then free context block. */

	if (context->in_syscall && context->auditable)

	if (context->in_syscall && context->auditable && context->pid != audit_pid)

		audit_log_exit(context);

		audit_log_exit(context);





	audit_free_context(context);

	audit_free_context(context);
@@ -903,7 +905,7 @@ void audit_syscall_exit(struct task_struct *tsk, int valid, long return_code) 
	if (likely(!context))

	if (likely(!context))

		return;

		return;





	if (context->in_syscall && context->auditable)

	if (context->in_syscall && context->auditable && context->pid != audit_pid)

		audit_log_exit(context);

		audit_log_exit(context);





	context->in_syscall = 0;

	context->in_syscall = 0;
@@ -1126,7 +1128,6 @@ void audit_signal_info(int sig, struct task_struct *t) 
{

{

	extern pid_t audit_sig_pid;

	extern pid_t audit_sig_pid;

	extern uid_t audit_sig_uid;

	extern uid_t audit_sig_uid;

	extern int audit_pid;





	if (unlikely(audit_pid && t->pid == audit_pid)) {

	if (unlikely(audit_pid && t->pid == audit_pid)) {

		if (sig == SIGTERM || sig == SIGHUP) {

		if (sig == SIGTERM || sig == SIGHUP) {