From 158f2eee27c1d491fdbc824aa5cb196109cf56fc Mon Sep 17 00:00:00 2001 From: "J. Nick Koston" Date: Tue, 20 Jan 2026 13:03:12 -1000 Subject: [PATCH] [wifi] Process scan results one at a time to avoid heap allocation --- .../components/wifi/wifi_component_esp_idf.cpp | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/esphome/components/wifi/wifi_component_esp_idf.cpp b/esphome/components/wifi/wifi_component_esp_idf.cpp index 848ec3e11c..2a2f5fece2 100644 --- a/esphome/components/wifi/wifi_component_esp_idf.cpp +++ b/esphome/components/wifi/wifi_component_esp_idf.cpp @@ -827,16 +827,16 @@ void WiFiComponent::wifi_process_event_(IDFWiFiEvent *data) { } uint16_t number = it.number; - auto records = std::make_unique(number); - err = esp_wifi_scan_get_ap_records(&number, records.get()); - if (err != ESP_OK) { - ESP_LOGW(TAG, "esp_wifi_scan_get_ap_records failed: %s", esp_err_to_name(err)); - return; - } - scan_result_.init(number); - for (int i = 0; i < number; i++) { - auto &record = records[i]; + + // Process one record at a time to avoid large buffer allocation + wifi_ap_record_t record; + for (uint16_t i = 0; i < number; i++) { + err = esp_wifi_scan_get_ap_record(&record); + if (err != ESP_OK) { + ESP_LOGW(TAG, "esp_wifi_scan_get_ap_record failed: %s", esp_err_to_name(err)); + break; + } bssid_t bssid; std::copy(record.bssid, record.bssid + 6, bssid.begin()); std::string ssid(reinterpret_cast(record.ssid));