diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 6afda059e882a7ee532a1fe872d2c1b7d92fb733..37526eb8bdf2945e6389952690f817f75c9970a3 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2016,6 +2016,10 @@ static u64 numa_get_avg_runtime(struct task_struct *p, u64 *period)
 	if (p->last_task_numa_placement) {
 		delta = runtime - p->last_sum_exec_runtime;
 		*period = now - p->last_task_numa_placement;
+
+		/* Avoid backward, and prevent potential divide error */
+		if (*period < 0)
+			*period = 0;
 	} else {
 		delta = p->se.avg.load_sum;
 		*period = LOAD_AVG_MAX;