problem: RequireBlockchash MUST commit a hash

solution: commit empty hash if no required block exists in db
ethereumproject · May 10, 2018 · d04d8c1 · d04d8c1
1 parent 6c0ed19
commit d04d8c1
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/core/multivm_processor.go b/core/multivm_processor.go
@@ -119,9 +119,11 @@ Loop:
 			vm.CommitNonexist(address)
 		case sputnikvm.RequireBlockhash:
 			number := ret.BlockNumber()
+			hash := common.Hash{}
 			if block := bc.GetBlockByNumber(number.Uint64()); block != nil && block.Number().Cmp(number) == 0 {
-				vm.CommitBlockhash(number, block.Hash())
+				hash = block.Hash()
 			}
+			vm.CommitBlockhash(number, hash)
 		}
 	}