Chromium Code Reviews| Index: runtime/vm/object_id_ring.cc |
| diff --git a/runtime/vm/object_id_ring.cc b/runtime/vm/object_id_ring.cc |
| index f7199bddbcd652d82b5c4337e63aba8f632fc968..434463b734cdfec29e24da22700b27415feab42c 100644 |
| --- a/runtime/vm/object_id_ring.cc |
| +++ b/runtime/vm/object_id_ring.cc |
| @@ -129,6 +129,9 @@ bool ObjectIdRing::IsValidId(int32_t id) { |
| if (id == kInvalidId) { |
| return false; |
| } |
| + if (id < 0) { |
| + return false; |
| + } |
| if (id >= max_serial_) { |
| return false; |
| } |