1 files changed, 5 insertions, 0 deletions

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index fb83c5cb8c32..105147631753 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -817,6 +817,8 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts
                 audit_log_format(ab, " success=%s exit=%ld", 
                                  (context->return_valid==AUDITSC_SUCCESS)?"yes":"no",
                                  context->return_code);
+
+        mutex_lock(&tty_mutex);
         if (tsk->signal && tsk->signal->tty && tsk->signal->tty->name)
                 tty = tsk->signal->tty->name;
         else
@@ -838,6 +840,9 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts
                   context->gid,
                   context->euid, context->suid, context->fsuid,
                   context->egid, context->sgid, context->fsgid, tty);
+
+        mutex_unlock(&tty_mutex);
+
         audit_log_task_info(ab, tsk);
         if (context->filterkey) {
                 audit_log_format(ab, " key=");