dns: fix parse memory leaky

PR-URL: #58973 Reviewed-By: Zeyu "Alex" Yang <himself65@outlook.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>

Author: theanarkh

src/cares_wrap.cc

@@ -1319,6 +1319,8 @@ int SoaTraits::Parse(
  if (status != ARES_SUCCESS)
  return status;
 
+ auto cleanup = OnScopeLeave([&]() { ares_free_data(soa_out); });
+
  Local<Object> soa_record = Object::New(env->isolate());
 
  soa_record->Set(env->context(),
@@ -1345,8 +1347,6 @@ int SoaTraits::Parse(
  Integer::NewFromUnsigned(
  env->isolate(), soa_out->minttl)).Check();
 
- ares_free_data(soa_out);
-
  wrap->CallOnComplete(soa_record);
  return ARES_SUCCESS;
 }