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Commit d48d8051 authored by Oleg Nesterov's avatar Oleg Nesterov Committed by Eric Paris
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audit_alloc: clear TIF_SYSCALL_AUDIT if !audit_context 



If audit_filter_task() nacks the new thread it makes sense
to clear TIF_SYSCALL_AUDIT which can be copied from parent
by dup_task_struct().

A wrong TIF_SYSCALL_AUDIT is not really bad but it triggers
the "slow" audit paths in entry.S to ensure the task can not
miss audit_syscall_*() calls, this is pointless if the task
has no ->audit_context.

Signed-off-by: default avatarOleg Nesterov <oleg@redhat.com>
Acked-by: default avatarSteve Grubb <sgrubb@redhat.com>
Acked-by: default avatarEric Paris <eparis@redhat.com>
Signed-off-by: default avatarRichard Guy Briggs <rgb@redhat.com>
Signed-off-by: default avatarEric Paris <eparis@redhat.com>
parent af0e493d

kernel/auditsc.c

+3 −1
Original line number Diff line number Diff line
@@ -943,8 +943,10 @@ int audit_alloc(struct task_struct *tsk) 
		return 0; /* Return if not auditing. */



	state = audit_filter_task(tsk, &key);

	if (state == AUDIT_DISABLED)

	if (state == AUDIT_DISABLED) {

		clear_tsk_thread_flag(tsk, TIF_SYSCALL_AUDIT);

		return 0;

	}



	if (!(context = audit_alloc_context(state))) {

		kfree(key);