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[wifi] Take the lwIP core lock around sntp_servermode_dhcp() (#18511)

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Markus Häll
2026-08-19 23:31:27 -05:00
committed by GitHub
parent 55b45fc6fb
commit b7d0b676fc
1 changed files with 8 additions and 1 deletions
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esphome/components/wifi/wifi_component_esp_idf.cpp
+8 -1
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@@ -580,7 +580,14 @@ bool WiFiComponent::wifi_sta_ip_config_(const optional<ManualIP> &manual_ip) {
// lwIP starts the SNTP client if it gets an SNTP server from DHCP. We don't need the time, and more importantly, // lwIP starts the SNTP client if it gets an SNTP server from DHCP. We don't need the time, and more importantly,
// the built-in SNTP client has a memory leak in certain situations. Disable this feature. // the built-in SNTP client has a memory leak in certain situations. Disable this feature.
// https://github.com/esphome/issues/issues/2299 // https://github.com/esphome/issues/issues/2299
sntp_servermode_dhcp(false); {
#if SNTP_GET_SERVERS_FROM_DHCP || SNTP_GET_SERVERS_FROM_DHCPV6
// sntp_servermode_dhcp() is an empty macro unless lwIP is built with
// DHCP-supplied NTP servers, so only that build needs the core lock.
LwIPLock lock;
#endif
sntp_servermode_dhcp(false);
}
// No manual IP is set; use DHCP client // No manual IP is set; use DHCP client
if (dhcp_status != ESP_NETIF_DHCP_STARTED) { if (dhcp_status != ESP_NETIF_DHCP_STARTED) {