fix length mismatch

backend/src/utilities/ebpf_bridge_events.py

@@ -524,7 +524,7 @@ def _emit_ingress_event(cpu: int, data: int, size: int) -> None:
 
     raw_size = size - ct.sizeof(Event)
     if raw_size > 0:
-        raw = ct.string_at(data + ct.sizeof(Event), raw_size)
+        raw = ct.string_at(data + ct.sizeof(Event), min(raw_size, int(event.length)))
         payload["raw_b64"] = base64.b64encode(raw).decode("ascii")
 
     print(json.dumps(payload, separators=(",", ":")), flush=True)