Fix MaxFeePerDataGas affects consensus on low balance

NethermindEth · Jun 14, 2023 · 57a6811 · 57a6811
1 parent d093db7
commit 57a6811
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Showing 2 changed files with 10 additions and 1 deletion.
diff --git a/src/Nethermind/Nethermind.Evm.Test/TransactionProcessorEip4844Tests.cs b/src/Nethermind/Nethermind.Evm.Test/TransactionProcessorEip4844Tests.cs
@@ -120,6 +120,11 @@ public static IEnumerable<TestCaseData> BalanceIsNotAffectedWhenNotEnoughFunds()
             TestName = $"Rejected if balance is not enough due to data gas price hiking, all funds are returned",
             ExpectedResult = UInt256.Zero,
         };
+        yield return new TestCaseData((UInt256)(GasCostOf.Transaction + Eip4844Constants.DataGasPerBlob), 1, 2ul, 0ul)
+        {
+            TestName = $"Rejected if balance is does not cover {nameof(Transaction.MaxFeePerDataGas)}, all funds are returned",
+            ExpectedResult = UInt256.Zero,
+        };
     }
 
     [Test]

diff --git a/src/Nethermind/Nethermind.Evm/TransactionProcessing/TransactionProcessor.cs b/src/Nethermind/Nethermind.Evm/TransactionProcessing/TransactionProcessor.cs
@@ -258,8 +258,12 @@ private void Execute(Transaction transaction, BlockHeader block, ITxTracer txTra
                     return;
                 }
 
+                UInt256 maxDataGasPrice = spec.IsEip4844Enabled
+                ? DataGasCalculator.CalculateDataGas(transaction) * transaction.MaxFeePerDataGas.Value
+                : UInt256.Zero;
+
                 if (!noValidation && spec.IsEip1559Enabled && !transaction.IsFree() &&
-                    (UInt256)transaction.GasLimit * transaction.MaxFeePerGas + value + dataGasPrice > senderBalance)
+                    (UInt256)transaction.GasLimit * transaction.MaxFeePerGas + value + maxDataGasPrice > senderBalance)
                 {
                     TraceLogInvalidTx(transaction,
                         $"INSUFFICIENT_MAX_FEE_PER_GAS_FOR_SENDER_BALANCE: ({caller})_BALANCE = {senderBalance}, MAX_FEE_PER_GAS: {transaction.MaxFeePerGas}");