From 20d199ae2066f1bb723d56b86643fe46608ffea0 Mon Sep 17 00:00:00 2001
From: Jeff Brown <jeff.brown@gmail.com>
Date: Sun, 13 Sep 2026 18:18:52 -0700
Subject: [PATCH] [pmsa003i] Fix read from uninitialized stack memory (#19053)

---
 esphome/components/pmsa003i/pmsa003i.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/esphome/components/pmsa003i/pmsa003i.cpp b/esphome/components/pmsa003i/pmsa003i.cpp
index 15f5d3e8793..0b5c72a94d2 100644
--- a/esphome/components/pmsa003i/pmsa003i.cpp
+++ b/esphome/components/pmsa003i/pmsa003i.cpp
@@ -88,7 +88,11 @@ void PMSA003IComponent::update() {
 bool PMSA003IComponent::read_data_(PM25AQIData *data) {
   uint8_t buffer[COUNT_DATA_BYTES];
 
-  this->read_bytes_raw(buffer, COUNT_DATA_BYTES);
+  const i2c::ErrorCode error = this->read(buffer, COUNT_DATA_BYTES);
+  if (error != i2c::ERROR_OK) {
+    ESP_LOGW(TAG, "I2C error %d", error);
+    return false;
+  }
 
   // https://github.com/adafruit/Adafruit_PM25AQI