cmd/evm: Fix blob-gas-used on invalid transactions in t8n (ethereum#2…

…8734)

cmd/evm: fixes the blob gas calculation if a transaction is invalid

cmd/evm/internal/t8ntool/execution.go

@@ -140,6 +140,7 @@ func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig,
 		rejectedTxs []*rejectedTx
 		includedTxs types.Transactions
 		gasUsed     = uint64(0)
+		blobGasUsed = uint64(0)
 		receipts    = make(types.Receipts, 0)
 		txIndex     = 0
 	)
@@ -189,7 +190,6 @@ func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig,
 		evm := vm.NewEVM(vmContext, vm.TxContext{}, statedb, chainConfig, vmConfig)
 		core.ProcessBeaconBlockRoot(*beaconRoot, evm, statedb)
 	}
-	var blobGasUsed uint64
 
 	for i := 0; txIt.Next(); i++ {
 		tx, err := txIt.Tx()
@@ -210,15 +210,15 @@ func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig,
 			rejectedTxs = append(rejectedTxs, &rejectedTx{i, err.Error()})
 			continue
 		}
+		txBlobGas := uint64(0)
 		if tx.Type() == types.BlobTxType {
-			txBlobGas := uint64(params.BlobTxBlobGasPerBlob * len(tx.BlobHashes()))
+			txBlobGas = uint64(params.BlobTxBlobGasPerBlob * len(tx.BlobHashes()))
 			if used, max := blobGasUsed+txBlobGas, uint64(params.MaxBlobGasPerBlock); used > max {
 				err := fmt.Errorf("blob gas (%d) would exceed maximum allowance %d", used, max)
 				log.Warn("rejected tx", "index", i, "err", err)
 				rejectedTxs = append(rejectedTxs, &rejectedTx{i, err.Error()})
 				continue
 			}
-			blobGasUsed += txBlobGas
 		}
 		tracer, err := getTracerFn(txIndex, tx.Hash())
 		if err != nil {
@@ -247,6 +247,7 @@ func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig,
 		if hashError != nil {
 			return nil, nil, nil, NewError(ErrorMissingBlockhash, hashError)
 		}
+		blobGasUsed += txBlobGas
 		gasUsed += msgResult.UsedGas
 
 		// Receipt: