diff --git a/examples/bluetooth/bluedroid/ble/ble_compatibility_test/main/ble_compatibility_test.c b/examples/bluetooth/bluedroid/ble/ble_compatibility_test/main/ble_compatibility_test.c
index 69e3dd627f..9f8dfedfca 100644
--- a/examples/bluetooth/bluedroid/ble/ble_compatibility_test/main/ble_compatibility_test.c
+++ b/examples/bluetooth/bluedroid/ble/ble_compatibility_test/main/ble_compatibility_test.c
@@ -248,6 +248,10 @@ static const esp_gatts_attr_db_t gatt_db[HRS_IDX_NB] =
 static void show_bonded_devices(void)
 {
     int dev_num = esp_ble_get_bond_device_num();
+    if (dev_num == 0) {
+        ESP_LOGI(EXAMPLE_TAG, "Bonded devices number zero\n");
+        return;
+    }
 
     esp_ble_bond_dev_t *dev_list = (esp_ble_bond_dev_t *)malloc(sizeof(esp_ble_bond_dev_t) * dev_num);
     esp_ble_get_bond_device_list(&dev_num, dev_list);
@@ -266,6 +270,10 @@ static void show_bonded_devices(void)
 static void __attribute__((unused)) remove_all_bonded_devices(void)
 {
     int dev_num = esp_ble_get_bond_device_num();
+    if (dev_num == 0) {
+        ESP_LOGI(EXAMPLE_TAG, "Bonded devices number zero\n");
+        return;
+    }
 
     esp_ble_bond_dev_t *dev_list = (esp_ble_bond_dev_t *)malloc(sizeof(esp_ble_bond_dev_t) * dev_num);
     esp_ble_get_bond_device_list(&dev_num, dev_list);
diff --git a/examples/bluetooth/bluedroid/ble/gatt_security_server/main/example_ble_sec_gatts_demo.c b/examples/bluetooth/bluedroid/ble/gatt_security_server/main/example_ble_sec_gatts_demo.c
index 68a6f442ef..58f74a69b4 100644
--- a/examples/bluetooth/bluedroid/ble/gatt_security_server/main/example_ble_sec_gatts_demo.c
+++ b/examples/bluetooth/bluedroid/ble/gatt_security_server/main/example_ble_sec_gatts_demo.c
@@ -257,6 +257,10 @@ static char *esp_auth_req_to_str(esp_ble_auth_req_t auth_req)
 static void show_bonded_devices(void)
 {
     int dev_num = esp_ble_get_bond_device_num();
+    if (dev_num == 0) {
+        ESP_LOGI(GATTS_TABLE_TAG, "Bonded devices number zero\n");
+        return;
+    }
 
     esp_ble_bond_dev_t *dev_list = (esp_ble_bond_dev_t *)malloc(sizeof(esp_ble_bond_dev_t) * dev_num);
     esp_ble_get_bond_device_list(&dev_num, dev_list);
@@ -273,6 +277,10 @@ static void show_bonded_devices(void)
 static void __attribute__((unused)) remove_all_bonded_devices(void)
 {
     int dev_num = esp_ble_get_bond_device_num();
+    if (dev_num == 0) {
+        ESP_LOGI(GATTS_TABLE_TAG, "Bonded devices number zero\n");
+        return;
+    }
 
     esp_ble_bond_dev_t *dev_list = (esp_ble_bond_dev_t *)malloc(sizeof(esp_ble_bond_dev_t) * dev_num);
     esp_ble_get_bond_device_list(&dev_num, dev_list);
diff --git a/examples/bluetooth/bluedroid/ble_50/ble50_security_server/main/ble50_sec_gatts_demo.c b/examples/bluetooth/bluedroid/ble_50/ble50_security_server/main/ble50_sec_gatts_demo.c
index d56abe5483..ed2db9fb1c 100644
--- a/examples/bluetooth/bluedroid/ble_50/ble50_security_server/main/ble50_sec_gatts_demo.c
+++ b/examples/bluetooth/bluedroid/ble_50/ble50_security_server/main/ble50_sec_gatts_demo.c
@@ -229,6 +229,10 @@ static char *esp_auth_req_to_str(esp_ble_auth_req_t auth_req)
 static void show_bonded_devices(void)
 {
     int dev_num = esp_ble_get_bond_device_num();
+    if (dev_num == 0) {
+        ESP_LOGI(GATTS_TABLE_TAG, "Bonded devices number zero\n");
+        return;
+    }
 
     esp_ble_bond_dev_t *dev_list = (esp_ble_bond_dev_t *)malloc(sizeof(esp_ble_bond_dev_t) * dev_num);
     esp_ble_get_bond_device_list(&dev_num, dev_list);
@@ -243,6 +247,10 @@ static void show_bonded_devices(void)
 static void __attribute__((unused)) remove_all_bonded_devices(void)
 {
     int dev_num = esp_ble_get_bond_device_num();
+    if (dev_num == 0) {
+        ESP_LOGI(GATTS_TABLE_TAG, "Bonded devices number zero\n");
+        return;
+    }
 
     esp_ble_bond_dev_t *dev_list = (esp_ble_bond_dev_t *)malloc(sizeof(esp_ble_bond_dev_t) * dev_num);
     esp_ble_get_bond_device_list(&dev_num, dev_list);