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fix(esp_http_server): fail the connection on an oversized WebSocket frame

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This commit is contained in:
Ashish Sharma
2026-09-04 16:24:38 +08:00
parent 8a01f77647
commit 9eaeac69cf
2 changed files with 32 additions and 0 deletions
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components/esp_http_server/src/httpd_ws.c
+3
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@@ -673,6 +673,9 @@ static esp_err_t httpd_ws_recv_frame_internal(httpd_req_t *req, httpd_ws_frame_t
/* When reading entire packet at once, we only accept the incoming packet length that is smaller than the max_len (or it will overflow the buffer!) */
if (!partial) {
ESP_LOGW(TAG, LOG_FMT("WS Message too long"));
/* The payload is still queued in the socket. Fail the connection
* (RFC 6455 §7.4.1, close code 1009) so the session is torn down. */
httpd_ws_fail_connection(req, HTTPD_WS_CLOSE_CODE_TOO_BIG);
return ESP_ERR_INVALID_SIZE;
}
ESP_LOGD(TAG, LOG_FMT("WS Message too long. User will have to call read again"));