diff --git a/src/hb-ot-layout-common.hh b/src/hb-ot-layout-common.hh
index 3140dd632..6ab950a32 100644
--- a/src/hb-ot-layout-common.hh
+++ b/src/hb-ot-layout-common.hh
@@ -2537,7 +2537,10 @@ struct VariationStore
 
     for (unsigned i = 0; i < inner_maps.length; i++)
       inner_maps[i].fini ();
-    return_trace (bool (varstore_prime->dataSets));
+
+    return_trace (
+        !c->serializer->in_error()
+        && varstore_prime->dataSets);
   }
 
   unsigned int get_region_index_count (unsigned int ivs) const
diff --git a/test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5137462782066688 b/test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5137462782066688
new file mode 100644
index 000000000..7b049bac2
Binary files /dev/null and b/test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5137462782066688 differ