diff --git a/components/esp_driver_mcpwm/src/mcpwm_gen.c b/components/esp_driver_mcpwm/src/mcpwm_gen.c
index 3c82f2c612..ca1bc7e143 100644
--- a/components/esp_driver_mcpwm/src/mcpwm_gen.c
+++ b/components/esp_driver_mcpwm/src/mcpwm_gen.c
@@ -170,7 +170,7 @@ esp_err_t mcpwm_generator_set_actions_on_timer_event(mcpwm_gen_handle_t gen, mcp
     mcpwm_gen_timer_event_action_t ev_act_itor = ev_act;
     bool invalid_utep = false;
     bool invalid_dtez = false;
-    va_list it;
+    va_list it = {};
     va_start(it, ev_act);
     while (ev_act_itor.event != MCPWM_TIMER_EVENT_INVALID) {
         invalid_utep = (timer->count_mode == MCPWM_TIMER_COUNT_MODE_UP_DOWN) &&
@@ -208,7 +208,7 @@ esp_err_t mcpwm_generator_set_actions_on_compare_event(mcpwm_gen_handle_t gen, m
     mcpwm_oper_t *oper = gen->oper;
     mcpwm_group_t *group = oper->group;
     mcpwm_gen_compare_event_action_t ev_act_itor = ev_act;
-    va_list it;
+    va_list it = {};
     va_start(it, ev_act);
     while (ev_act_itor.comparator) {
         mcpwm_ll_generator_set_action_on_compare_event(group->hal.dev, oper->oper_id, gen->gen_id,
@@ -236,7 +236,7 @@ esp_err_t mcpwm_generator_set_actions_on_brake_event(mcpwm_gen_handle_t gen, mcp
     mcpwm_oper_t *oper = gen->oper;
     mcpwm_group_t *group = oper->group;
     mcpwm_gen_brake_event_action_t ev_act_itor = ev_act;
-    va_list it;
+    va_list it = {};
     va_start(it, ev_act);
     while (ev_act_itor.brake_mode != MCPWM_OPER_BRAKE_MODE_INVALID) {
         mcpwm_ll_generator_set_action_on_brake_event(group->hal.dev, oper->oper_id, gen->gen_id,
diff --git a/components/esp_lcd/dsi/esp_lcd_panel_dpi.c b/components/esp_lcd/dsi/esp_lcd_panel_dpi.c
index cb0cd9e77b..fb51241db2 100644
--- a/components/esp_lcd/dsi/esp_lcd_panel_dpi.c
+++ b/components/esp_lcd/dsi/esp_lcd_panel_dpi.c
@@ -393,12 +393,14 @@ esp_err_t esp_lcd_dpi_panel_get_frame_buffer(esp_lcd_panel_handle_t panel, uint3
     esp_lcd_dpi_panel_t *dpi_panel = __containerof(panel, esp_lcd_dpi_panel_t, base);
     ESP_RETURN_ON_FALSE(fb_num && fb_num <= dpi_panel->num_fbs, ESP_ERR_INVALID_ARG, TAG, "invalid frame buffer number");
     void **fb_itor = fb0;
-    va_list args;
+    va_list args = {};
     va_start(args, fb0);
     for (uint32_t i = 0; i < fb_num; i++) {
         if (fb_itor) {
             *fb_itor = dpi_panel->fbs[i];
-            fb_itor = va_arg(args, void **);
+            if (i < fb_num - 1) {  /* Only get next arg if we're not at the last iteration */
+                fb_itor = va_arg(args, void **);
+            }
         }
     }
     va_end(args);
diff --git a/components/esp_lcd/rgb/esp_lcd_panel_rgb.c b/components/esp_lcd/rgb/esp_lcd_panel_rgb.c
index b08cab1959..ff41babb88 100644
--- a/components/esp_lcd/rgb/esp_lcd_panel_rgb.c
+++ b/components/esp_lcd/rgb/esp_lcd_panel_rgb.c
@@ -463,12 +463,14 @@ esp_err_t esp_lcd_rgb_panel_get_frame_buffer(esp_lcd_panel_handle_t panel, uint3
     esp_rgb_panel_t *rgb_panel = __containerof(panel, esp_rgb_panel_t, base);
     ESP_RETURN_ON_FALSE(fb_num && fb_num <= rgb_panel->num_fbs, ESP_ERR_INVALID_ARG, TAG, "invalid frame buffer number");
     void **fb_itor = fb0;
-    va_list args;
+    va_list args = {};
     va_start(args, fb0);
     for (int i = 0; i < fb_num; i++) {
         if (fb_itor) {
             *fb_itor = rgb_panel->fbs[i];
-            fb_itor = va_arg(args, void **);
+            if (i < fb_num - 1) {  /* Only get next arg if we're not at the last iteration */
+                fb_itor = va_arg(args, void **);
+            }
         }
     }
     va_end(args);