diff --git a/examples/wifi/espnow/main/espnow_example_main.c b/examples/wifi/espnow/main/espnow_example_main.c
index a99f9f673d..708a186043 100644
--- a/examples/wifi/espnow/main/espnow_example_main.c
+++ b/examples/wifi/espnow/main/espnow_example_main.c
@@ -318,13 +318,13 @@ static esp_err_t example_espnow_init(void)
 
     /* Initialize sending parameters. */
     send_param = malloc(sizeof(example_espnow_send_param_t));
-    memset(send_param, 0, sizeof(example_espnow_send_param_t));
     if (send_param == NULL) {
         ESP_LOGE(TAG, "Malloc send parameter fail");
         vSemaphoreDelete(s_example_espnow_queue);
         esp_now_deinit();
         return ESP_FAIL;
     }
+    memset(send_param, 0, sizeof(example_espnow_send_param_t));
     send_param->unicast = false;
     send_param->broadcast = true;
     send_param->state = 0;
diff --git a/examples/wifi/ftm/main/ftm_main.c b/examples/wifi/ftm/main/ftm_main.c
index 2d3eaf23ba..35a7b3df60 100644
--- a/examples/wifi/ftm/main/ftm_main.c
+++ b/examples/wifi/ftm/main/ftm_main.c
@@ -144,11 +144,12 @@ static void event_handler(void *arg, esp_event_base_t event_base,
 static void ftm_process_report(void)
 {
     int i;
-    char *log = malloc(200);
+    char *log = NULL;
 
     if (!g_report_lvl)
         return;
 
+    log = malloc(200);
     if (!log) {
         ESP_LOGE(TAG_STA, "Failed to alloc buffer for FTM report");
         return;