dns: fix parse memory leaky

PR-URL: #58973
Reviewed-By: Zeyu "Alex" Yang <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Marco Ippolito <[email protected]>
Reviewed-By: James M Snell <[email protected]>

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;
 }