diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 570b8d056282..0951d1c58d2f 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3242,6 +3242,32 @@ ___update_load_avg(struct sched_avg *sa, unsigned long load, unsigned long runna
 	sa->util_avg = sa->util_sum / divider;
 }
 
+/*
+ * When a task is dequeued, its estimated utilization should not be update if
+ * its util_avg has not been updated at least once.
+ * This flag is used to synchronize util_avg updates with util_est updates.
+ * We map this information into the LSB bit of the utilization saved at
+ * dequeue time (i.e. util_est.dequeued).
+ */
+#define UTIL_AVG_UNCHANGED 0x1
+
+static inline void cfs_se_util_change(struct sched_avg *avg)
+{
+	unsigned int enqueued;
+
+	if (!sched_feat(UTIL_EST))
+		return;
+
+	/* Avoid store if the flag has been already set */
+	enqueued = avg->util_est.enqueued;
+	if (!(enqueued & UTIL_AVG_UNCHANGED))
+		return;
+
+	/* Reset flag to report util_avg has been updated */
+	enqueued &= ~UTIL_AVG_UNCHANGED;
+	WRITE_ONCE(avg->util_est.enqueued, enqueued);
+}
+
 /*
  * sched_entity:
  *
@@ -3293,6 +3319,7 @@ __update_load_avg_se(u64 now, int cpu, struct cfs_rq *cfs_rq, struct sched_entit
 				cfs_rq->curr == se)) {
 
 		___update_load_avg(&se->avg, se_weight(se), se_runnable(se));
+		cfs_se_util_change(&se->avg);
 		return 1;
 	}
 
@@ -3900,7 +3927,7 @@ static inline void util_est_enqueue(struct cfs_rq *cfs_rq,
 
 	/* Update root cfs_rq's estimated utilization */
 	enqueued  = cfs_rq->avg.util_est.enqueued;
-	enqueued += _task_util_est(p);
+	enqueued += (_task_util_est(p) | UTIL_AVG_UNCHANGED);
 	WRITE_ONCE(cfs_rq->avg.util_est.enqueued, enqueued);
 }
 
@@ -3936,7 +3963,7 @@ util_est_dequeue(struct cfs_rq *cfs_rq, struct task_struct *p, bool task_sleep)
 	if (cfs_rq->nr_running) {
 		ue.enqueued  = cfs_rq->avg.util_est.enqueued;
 		ue.enqueued -= min_t(unsigned int, ue.enqueued,
-				     _task_util_est(p));
+				     (_task_util_est(p) | UTIL_AVG_UNCHANGED));
 	}
 	WRITE_ONCE(cfs_rq->avg.util_est.enqueued, ue.enqueued);
 
@@ -3947,12 +3974,19 @@ util_est_dequeue(struct cfs_rq *cfs_rq, struct task_struct *p, bool task_sleep)
 	if (!task_sleep)
 		return;
 
+	/*
+	 * If the PELT values haven't changed since enqueue time,
+	 * skip the util_est update.
+	 */
+	ue = p->se.avg.util_est;
+	if (ue.enqueued & UTIL_AVG_UNCHANGED)
+		return;
+
 	/*
 	 * Skip update of task's estimated utilization when its EWMA is
 	 * already ~1% close to its last activation value.
 	 */
-	ue = p->se.avg.util_est;
-	ue.enqueued = task_util(p);
+	ue.enqueued = (task_util(p) | UTIL_AVG_UNCHANGED);
 	last_ewma_diff = ue.enqueued - ue.ewma;
 	if (within_margin(last_ewma_diff, (SCHED_CAPACITY_SCALE / 100)))
 		return;
diff --git a/kernel/sched/features.h b/kernel/sched/features.h
index c459a4b61544..85ae8488039c 100644
--- a/kernel/sched/features.h
+++ b/kernel/sched/features.h
@@ -89,4 +89,4 @@ SCHED_FEAT(WA_BIAS, true)
 /*
  * UtilEstimation. Use estimated CPU utilization.
  */
-SCHED_FEAT(UTIL_EST, false)
+SCHED_FEAT(UTIL_EST, true)