CHANGELOG.md

@@ -42,6 +42,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 * (deps) [\#1159](https://github.com/evmos/ethermint/pull/1159) Bump Geth version to `v1.10.19`.
 * (deps) [#1167](https://github.com/evmos/ethermint/pull/1167) Upgrade ibc-go to v4.
+* (evm) [\#1174](https://github.com/evmos/ethermint/pull/1174) Don't allow eth txs with 0 in mempool.
 
 ### Improvements
 

x/evm/keeper/benchmark_test.go

@@ -17,7 +17,7 @@ import (
 
 func SetupContract(b *testing.B) (*KeeperTestSuite, common.Address) {
 	suite := KeeperTestSuite{}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 
 	amt := sdk.Coins{ethermint.NewPhotonCoinInt64(1000000000000000000)}
 	err := suite.app.BankKeeper.MintCoins(suite.ctx, types.ModuleName, amt)
@@ -33,7 +33,7 @@ func SetupContract(b *testing.B) (*KeeperTestSuite, common.Address) {
 
 func SetupTestMessageCall(b *testing.B) (*KeeperTestSuite, common.Address) {
 	suite := KeeperTestSuite{}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 
 	amt := sdk.Coins{ethermint.NewPhotonCoinInt64(1000000000000000000)}
 	err := suite.app.BankKeeper.MintCoins(suite.ctx, types.ModuleName, amt)

x/evm/keeper/integration_test.go

@@ -0,0 +1,290 @@
+package keeper_test
+
+import (
+	"encoding/json"
+	"math/big"
+
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+
+	"github.com/cosmos/cosmos-sdk/baseapp"
+	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	authtx "github.com/cosmos/cosmos-sdk/x/auth/tx"
+	"github.com/ethereum/go-ethereum/common"
+	ethtypes "github.com/ethereum/go-ethereum/core/types"
+	"github.com/evmos/ethermint/app"
+	"github.com/evmos/ethermint/crypto/ethsecp256k1"
+	"github.com/evmos/ethermint/encoding"
+	"github.com/evmos/ethermint/tests"
+	"github.com/evmos/ethermint/testutil"
+	"github.com/evmos/ethermint/x/feemarket/types"
+
+	"github.com/cosmos/cosmos-sdk/simapp"
+	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
+	evmtypes "github.com/evmos/ethermint/x/evm/types"
+	abci "github.com/tendermint/tendermint/abci/types"
+	"github.com/tendermint/tendermint/libs/log"
+	dbm "github.com/tendermint/tm-db"
+)
+
+var _ = Describe("Feemarket", func() {
+	var (
+		privKey *ethsecp256k1.PrivKey
+	)
+
+	Describe("Performing EVM transactions", func() {
+		type txParams struct {
+			gasLimit  uint64
+			gasPrice  *big.Int
+			gasFeeCap *big.Int
+			gasTipCap *big.Int
+			accesses  *ethtypes.AccessList
+		}
+		type getprices func() txParams
+
+		Context("with MinGasPrices (feemarket param) < BaseFee (feemarket)", func() {
+			var (
+				baseFee      int64
+				minGasPrices int64
+			)
+
+			BeforeEach(func() {
+				baseFee = 10_000_000_000
+				minGasPrices = baseFee - 5_000_000_000
+
+				// Note that the tests run the same transactions with `gasLimit =
+				// 100_000`. With the fee calculation `Fee = (baseFee + tip) * gasLimit`,
+				// a `minGasPrices = 5_000_000_000` results in `minGlobalFee =
+				// 500_000_000_000_000`
+				privKey, _ = setupTestWithContext("1", sdk.NewDec(minGasPrices), sdk.NewInt(baseFee))
+			})
+
+			Context("during CheckTx", func() {
+				DescribeTable("should accept transactions with gas Limit > 0",
+					func(malleate getprices) {
+						p := malleate()
+						to := tests.GenerateAddress()
+						msgEthereumTx := buildEthTx(privKey, &to, p.gasLimit, p.gasPrice, p.gasFeeCap, p.gasTipCap, p.accesses)
+						res := checkEthTx(privKey, msgEthereumTx)
+						Expect(res.IsOK()).To(Equal(true), "transaction should have succeeded", res.GetLog())
+					},
+					Entry("legacy tx", func() txParams {
+						return txParams{100000, big.NewInt(baseFee), nil, nil, nil}
+					}),
+					Entry("dynamic tx", func() txParams {
+						return txParams{100000, nil, big.NewInt(baseFee), big.NewInt(0), &ethtypes.AccessList{}}
+					}),
+				)
+				DescribeTable("should not accept transactions with gas Limit > 0",
+					func(malleate getprices) {
+						p := malleate()
+						to := tests.GenerateAddress()
+						msgEthereumTx := buildEthTx(privKey, &to, p.gasLimit, p.gasPrice, p.gasFeeCap, p.gasTipCap, p.accesses)
+						res := checkEthTx(privKey, msgEthereumTx)
+						Expect(res.IsOK()).To(Equal(false), "transaction should have succeeded", res.GetLog())
+					},
+					Entry("legacy tx", func() txParams {
+						return txParams{0, big.NewInt(baseFee), nil, nil, nil}
+					}),
+					Entry("dynamic tx", func() txParams {
+						return txParams{0, nil, big.NewInt(baseFee), big.NewInt(0), &ethtypes.AccessList{}}
+					}),
+				)
+			})
+
+			Context("during DeliverTx", func() {
+				DescribeTable("should accept transactions with gas Limit > 0",
+					func(malleate getprices) {
+						p := malleate()
+						to := tests.GenerateAddress()
+						msgEthereumTx := buildEthTx(privKey, &to, p.gasLimit, p.gasPrice, p.gasFeeCap, p.gasTipCap, p.accesses)
+						res := deliverEthTx(privKey, msgEthereumTx)
+						Expect(res.IsOK()).To(Equal(true), "transaction should have succeeded", res.GetLog())
+					},
+					Entry("legacy tx", func() txParams {
+						return txParams{100000, big.NewInt(baseFee), nil, nil, nil}
+					}),
+					Entry("dynamic tx", func() txParams {
+						return txParams{100000, nil, big.NewInt(baseFee), big.NewInt(0), &ethtypes.AccessList{}}
+					}),
+				)
+				DescribeTable("should not accept transactions with gas Limit > 0",
+					func(malleate getprices) {
+						p := malleate()
+						to := tests.GenerateAddress()
+						msgEthereumTx := buildEthTx(privKey, &to, p.gasLimit, p.gasPrice, p.gasFeeCap, p.gasTipCap, p.accesses)
+						res := checkEthTx(privKey, msgEthereumTx)
+						Expect(res.IsOK()).To(Equal(false), "transaction should have succeeded", res.GetLog())
+					},
+					Entry("legacy tx", func() txParams {
+						return txParams{0, big.NewInt(baseFee), nil, nil, nil}
+					}),
+					Entry("dynamic tx", func() txParams {
+						return txParams{0, nil, big.NewInt(baseFee), big.NewInt(0), &ethtypes.AccessList{}}
+					}),
+				)
+			})
+		})
+	})
+})
+
+// setupTestWithContext sets up a test chain with an example Cosmos send msg,
+// given a local (validator config) and a gloabl (feemarket param) minGasPrice
+func setupTestWithContext(valMinGasPrice string, minGasPrice sdk.Dec, baseFee sdk.Int) (*ethsecp256k1.PrivKey, banktypes.MsgSend) {
+	privKey, msg := setupTest(valMinGasPrice + s.denom)
+	params := types.DefaultParams()
+	params.MinGasPrice = minGasPrice
+	s.app.FeeMarketKeeper.SetParams(s.ctx, params)
+	s.app.FeeMarketKeeper.SetBaseFee(s.ctx, baseFee.BigInt())
+	s.Commit()
+
+	return privKey, msg
+}
+
+func setupTest(localMinGasPrices string) (*ethsecp256k1.PrivKey, banktypes.MsgSend) {
+	setupChain(localMinGasPrices)
+
+	privKey, address := generateKey()
+	amount, ok := sdk.NewIntFromString("10000000000000000000")
+	s.Require().True(ok)
+	initBalance := sdk.Coins{sdk.Coin{
+		Denom:  s.denom,
+		Amount: amount,
+	}}
+	testutil.FundAccount(s.app.BankKeeper, s.ctx, address, initBalance)
+
+	msg := banktypes.MsgSend{
+		FromAddress: address.String(),
+		ToAddress:   address.String(),
+		Amount: sdk.Coins{sdk.Coin{
+			Denom:  s.denom,
+			Amount: sdk.NewInt(10000),
+		}},
+	}
+	s.Commit()
+	return privKey, msg
+}
+
+func setupChain(localMinGasPricesStr string) {
+	// Initialize the app, so we can use SetMinGasPrices to set the
+	// validator-specific min-gas-prices setting
+	db := dbm.NewMemDB()
+	newapp := app.NewEthermintApp(
+		log.NewNopLogger(),
+		db,
+		nil,
+		true,
+		map[int64]bool{},
+		app.DefaultNodeHome,
+		5,
+		encoding.MakeConfig(app.ModuleBasics),
+		simapp.EmptyAppOptions{},
+		baseapp.SetMinGasPrices(localMinGasPricesStr),
+	)
+
+	genesisState := app.NewDefaultGenesisState()
+	genesisState[types.ModuleName] = newapp.AppCodec().MustMarshalJSON(types.DefaultGenesisState())
+
+	stateBytes, err := json.MarshalIndent(genesisState, "", "  ")
+	s.Require().NoError(err)
+
+	// Initialize the chain
+	newapp.InitChain(
+		abci.RequestInitChain{
+			ChainId:         "ethermint_9000-1",
+			Validators:      []abci.ValidatorUpdate{},
+			AppStateBytes:   stateBytes,
+			ConsensusParams: app.DefaultConsensusParams,
+		},
+	)
+
+	s.app = newapp
+	s.SetupApp(false)
+}
+
+func generateKey() (*ethsecp256k1.PrivKey, sdk.AccAddress) {
+	address, priv := tests.NewAddrKey()
+	return priv.(*ethsecp256k1.PrivKey), sdk.AccAddress(address.Bytes())
+}
+
+func getNonce(addressBytes []byte) uint64 {
+	return s.app.EvmKeeper.GetNonce(
+		s.ctx,
+		common.BytesToAddress(addressBytes),
+	)
+}
+
+func buildEthTx(
+	priv *ethsecp256k1.PrivKey,
+	to *common.Address,
+	gasLimit uint64,
+	gasPrice *big.Int,
+	gasFeeCap *big.Int,
+	gasTipCap *big.Int,
+	accesses *ethtypes.AccessList,
+) *evmtypes.MsgEthereumTx {
+	chainID := s.app.EvmKeeper.ChainID()
+	from := common.BytesToAddress(priv.PubKey().Address().Bytes())
+	nonce := getNonce(from.Bytes())
+	data := make([]byte, 0)
+	msgEthereumTx := evmtypes.NewTx(
+		chainID,
+		nonce,
+		to,
+		nil,
+		gasLimit,
+		gasPrice,
+		gasFeeCap,
+		gasTipCap,
+		data,
+		accesses,
+	)
+	msgEthereumTx.From = from.String()
+	return msgEthereumTx
+}
+
+func prepareEthTx(priv *ethsecp256k1.PrivKey, msgEthereumTx *evmtypes.MsgEthereumTx) []byte {
+	encodingConfig := encoding.MakeConfig(app.ModuleBasics)
+	option, err := codectypes.NewAnyWithValue(&evmtypes.ExtensionOptionsEthereumTx{})
+	s.Require().NoError(err)
+
+	txBuilder := encodingConfig.TxConfig.NewTxBuilder()
+	builder, ok := txBuilder.(authtx.ExtensionOptionsTxBuilder)
+	s.Require().True(ok)
+	builder.SetExtensionOptions(option)
+
+	err = msgEthereumTx.Sign(s.ethSigner, tests.NewSigner(priv))
+	s.Require().NoError(err)
+
+	err = txBuilder.SetMsgs(msgEthereumTx)
+	s.Require().NoError(err)
+
+	txData, err := evmtypes.UnpackTxData(msgEthereumTx.Data)
+	s.Require().NoError(err)
+
+	evmDenom := s.app.EvmKeeper.GetParams(s.ctx).EvmDenom
+	fees := sdk.Coins{{Denom: evmDenom, Amount: sdk.NewIntFromBigInt(txData.Fee())}}
+	builder.SetFeeAmount(fees)
+	builder.SetGasLimit(msgEthereumTx.GetGas())
+
+	// bz are bytes to be broadcasted over the network
+	bz, err := encodingConfig.TxConfig.TxEncoder()(txBuilder.GetTx())
+	s.Require().NoError(err)
+
+	return bz
+}
+
+func checkEthTx(priv *ethsecp256k1.PrivKey, msgEthereumTx *evmtypes.MsgEthereumTx) abci.ResponseCheckTx {
+	bz := prepareEthTx(priv, msgEthereumTx)
+	req := abci.RequestCheckTx{Tx: bz}
+	res := s.app.BaseApp.CheckTx(req)
+	return res
+}
+
+func deliverEthTx(priv *ethsecp256k1.PrivKey, msgEthereumTx *evmtypes.MsgEthereumTx) abci.ResponseDeliverTx {
+	bz := prepareEthTx(priv, msgEthereumTx)
+	req := abci.RequestDeliverTx{Tx: bz}
+	res := s.app.BaseApp.DeliverTx(req)
+	return res
+}

x/evm/keeper/keeper_test.go

@@ -8,6 +8,9 @@ import (
 	"testing"
 	"time"
 
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+
 	"github.com/stretchr/testify/require"
 	"github.com/stretchr/testify/suite"
 
@@ -31,6 +34,7 @@ import (
 	ethermint "github.com/evmos/ethermint/types"
 	"github.com/evmos/ethermint/x/evm/statedb"
 	"github.com/evmos/ethermint/x/evm/types"
+	evmtypes "github.com/evmos/ethermint/x/evm/types"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
@@ -66,12 +70,31 @@ type KeeperTestSuite struct {
 	enableFeemarket  bool
 	enableLondonHF   bool
 	mintFeeCollector bool
+	denom            string
 }
 
-/// DoSetupTest setup test environment, it uses`require.TestingT` to support both `testing.T` and `testing.B`.
-func (suite *KeeperTestSuite) DoSetupTest(t require.TestingT) {
-	checkTx := false
+var s *KeeperTestSuite
 
+func TestKeeperTestSuite(t *testing.T) {
+	s = new(KeeperTestSuite)
+	s.enableFeemarket = false
+	s.enableLondonHF = true
+	suite.Run(t, s)
+
+	// Run Ginkgo integration tests
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "Keeper Suite")
+}
+
+func (suite *KeeperTestSuite) SetupTest() {
+	checkTx := false
+	suite.app = app.Setup(checkTx, nil)
+	suite.SetupApp(checkTx)
+}
+
+/// SetupApp setup test environment, it uses`require.TestingT` to support both `testing.T` and `testing.B`.
+func (suite *KeeperTestSuite) SetupApp(checkTx bool) {
+	t := suite.T()
 	// account key, use a constant account to keep unit test deterministic.
 	ecdsaPriv, err := crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
 	require.NoError(t, err)
@@ -186,10 +209,7 @@ func (suite *KeeperTestSuite) DoSetupTest(t require.TestingT) {
 	suite.clientCtx = client.Context{}.WithTxConfig(encodingConfig.TxConfig)
 	suite.ethSigner = ethtypes.LatestSignerForChainID(suite.app.EvmKeeper.ChainID())
 	suite.appCodec = encodingConfig.Marshaler
-}
-
-func (suite *KeeperTestSuite) SetupTest() {
-	suite.DoSetupTest(suite.T())
+	suite.denom = evmtypes.DefaultEVMDenom
 }
 
 func (suite *KeeperTestSuite) EvmDenom() string {
@@ -413,10 +433,3 @@ func (suite *KeeperTestSuite) TestBaseFee() {
 	suite.enableFeemarket = false
 	suite.enableLondonHF = true
 }
-
-func TestKeeperTestSuite(t *testing.T) {
-	suite.Run(t, &KeeperTestSuite{
-		enableFeemarket: false,
-		enableLondonHF:  true,
-	})
-}

x/evm/keeper/state_transition_benchmark_test.go

@@ -143,7 +143,7 @@ func newNativeMessage(
 
 func BenchmarkApplyTransaction(b *testing.B) {
 	suite := KeeperTestSuite{enableLondonHF: true}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 
 	ethSigner := ethtypes.LatestSignerForChainID(suite.app.EvmKeeper.ChainID())
 
@@ -170,7 +170,7 @@ func BenchmarkApplyTransaction(b *testing.B) {
 
 func BenchmarkApplyTransactionWithLegacyTx(b *testing.B) {
 	suite := KeeperTestSuite{enableLondonHF: true}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 
 	ethSigner := ethtypes.LatestSignerForChainID(suite.app.EvmKeeper.ChainID())
 
@@ -197,7 +197,7 @@ func BenchmarkApplyTransactionWithLegacyTx(b *testing.B) {
 
 func BenchmarkApplyTransactionWithDynamicFeeTx(b *testing.B) {
 	suite := KeeperTestSuite{enableFeemarket: true, enableLondonHF: true}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 
 	ethSigner := ethtypes.LatestSignerForChainID(suite.app.EvmKeeper.ChainID())
 
@@ -224,7 +224,7 @@ func BenchmarkApplyTransactionWithDynamicFeeTx(b *testing.B) {
 
 func BenchmarkApplyMessage(b *testing.B) {
 	suite := KeeperTestSuite{enableLondonHF: true}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 
 	params := suite.app.EvmKeeper.GetParams(suite.ctx)
 	ethCfg := params.ChainConfig.EthereumConfig(suite.app.EvmKeeper.ChainID())
@@ -259,7 +259,7 @@ func BenchmarkApplyMessage(b *testing.B) {
 
 func BenchmarkApplyMessageWithLegacyTx(b *testing.B) {
 	suite := KeeperTestSuite{enableLondonHF: true}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 
 	params := suite.app.EvmKeeper.GetParams(suite.ctx)
 	ethCfg := params.ChainConfig.EthereumConfig(suite.app.EvmKeeper.ChainID())
@@ -294,7 +294,7 @@ func BenchmarkApplyMessageWithLegacyTx(b *testing.B) {
 
 func BenchmarkApplyMessageWithDynamicFeeTx(b *testing.B) {
 	suite := KeeperTestSuite{enableFeemarket: true, enableLondonHF: true}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 
 	params := suite.app.EvmKeeper.GetParams(suite.ctx)
 	ethCfg := params.ChainConfig.EthereumConfig(suite.app.EvmKeeper.ChainID())

x/evm/keeper/statedb_benchmark_test.go

@@ -15,7 +15,7 @@ import (
 
 func BenchmarkCreateAccountNew(b *testing.B) {
 	suite := KeeperTestSuite{}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 	vmdb := suite.StateDB()
 
 	b.ResetTimer()
@@ -31,7 +31,7 @@ func BenchmarkCreateAccountNew(b *testing.B) {
 
 func BenchmarkCreateAccountExisting(b *testing.B) {
 	suite := KeeperTestSuite{}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 	vmdb := suite.StateDB()
 
 	b.ResetTimer()
@@ -44,7 +44,7 @@ func BenchmarkCreateAccountExisting(b *testing.B) {
 
 func BenchmarkAddBalance(b *testing.B) {
 	suite := KeeperTestSuite{}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 	vmdb := suite.StateDB()
 
 	amt := big.NewInt(10)
@@ -59,7 +59,7 @@ func BenchmarkAddBalance(b *testing.B) {
 
 func BenchmarkSetCode(b *testing.B) {
 	suite := KeeperTestSuite{}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 	vmdb := suite.StateDB()
 
 	hash := crypto.Keccak256Hash([]byte("code")).Bytes()
@@ -74,7 +74,7 @@ func BenchmarkSetCode(b *testing.B) {
 
 func BenchmarkSetState(b *testing.B) {
 	suite := KeeperTestSuite{}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 	vmdb := suite.StateDB()
 
 	hash := crypto.Keccak256Hash([]byte("topic")).Bytes()
@@ -89,7 +89,7 @@ func BenchmarkSetState(b *testing.B) {
 
 func BenchmarkAddLog(b *testing.B) {
 	suite := KeeperTestSuite{}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 	vmdb := suite.StateDB()
 
 	topic := crypto.Keccak256Hash([]byte("topic"))
@@ -116,7 +116,7 @@ func BenchmarkAddLog(b *testing.B) {
 
 func BenchmarkSnapshot(b *testing.B) {
 	suite := KeeperTestSuite{}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 	vmdb := suite.StateDB()
 
 	b.ResetTimer()
@@ -136,7 +136,7 @@ func BenchmarkSnapshot(b *testing.B) {
 
 func BenchmarkSubBalance(b *testing.B) {
 	suite := KeeperTestSuite{}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 	vmdb := suite.StateDB()
 
 	amt := big.NewInt(10)
@@ -151,7 +151,7 @@ func BenchmarkSubBalance(b *testing.B) {
 
 func BenchmarkSetNonce(b *testing.B) {
 	suite := KeeperTestSuite{}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 	vmdb := suite.StateDB()
 
 	b.ResetTimer()
@@ -164,7 +164,7 @@ func BenchmarkSetNonce(b *testing.B) {
 
 func BenchmarkAddRefund(b *testing.B) {
 	suite := KeeperTestSuite{}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 	vmdb := suite.StateDB()
 
 	b.ResetTimer()
@@ -177,7 +177,7 @@ func BenchmarkAddRefund(b *testing.B) {
 
 func BenchmarkSuicide(b *testing.B) {
 	suite := KeeperTestSuite{}
-	suite.DoSetupTest(b)
+	suite.SetupTest()
 	vmdb := suite.StateDB()
 
 	b.ResetTimer()

x/evm/types/errors.go

@@ -33,6 +33,7 @@ const (
 	codeErrInvalidBaseFee
 	codeErrGasOverflow
 	codeErrInvalidAccount
+	codeErrInvalidGasLimit
 )
 
 var ErrPostTxProcessing = errors.New("failed to execute post processing")
@@ -97,6 +98,9 @@ var (
 
 	// ErrInvalidAccount returns an error if the account is not an EVM compatible account
 	ErrInvalidAccount = sdkerrors.Register(ModuleName, codeErrInvalidAccount, "account type is not a valid ethereum account")
+
+	// ErrInvalidGasLimit returns an error if gas limit value is invalid
+	ErrInvalidGasLimit = sdkerrors.Register(ModuleName, codeErrInvalidGasLimit, "invalid gas limit")
 )
 
 // NewExecErrorWithReason unpacks the revert return bytes and returns a wrapped error

x/evm/types/msg.go

@@ -171,6 +171,11 @@ func (msg MsgEthereumTx) ValidateBasic() error {
 		return sdkerrors.Wrap(err, "failed to unpack tx data")
 	}
 
+	// prevent txs with 0 gas to fill up the mempool
+	if txData.GetGas() == 0 {
+		return sdkerrors.Wrap(ErrInvalidGasLimit, "gas limit must not be zero")
+	}
+
 	return txData.Validate()
 }
 

x/evm/types/msg_test.go

@@ -119,6 +119,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 		msg        string
 		to         string
 		amount     *big.Int
+		gasLimit   uint64
 		gasPrice   *big.Int
 		gasFeeCap  *big.Int
 		gasTipCap  *big.Int
@@ -131,6 +132,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "pass with recipient - Legacy Tx",
 			to:         suite.to.Hex(),
 			amount:     hundredInt,
+			gasLimit:   1000,
 			gasPrice:   hundredInt,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -140,6 +142,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "pass with recipient - AccessList Tx",
 			to:         suite.to.Hex(),
 			amount:     hundredInt,
+			gasLimit:   1000,
 			gasPrice:   zeroInt,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -151,6 +154,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "pass with recipient - DynamicFee Tx",
 			to:         suite.to.Hex(),
 			amount:     hundredInt,
+			gasLimit:   1000,
 			gasPrice:   zeroInt,
 			gasFeeCap:  hundredInt,
 			gasTipCap:  zeroInt,
@@ -162,6 +166,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "pass contract - Legacy Tx",
 			to:         "",
 			amount:     hundredInt,
+			gasLimit:   1000,
 			gasPrice:   hundredInt,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -171,6 +176,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "invalid recipient",
 			to:         invalidFromAddress,
 			amount:     minusOneInt,
+			gasLimit:   1000,
 			gasPrice:   hundredInt,
 			expectPass: false,
 		},
@@ -178,6 +184,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "nil amount - Legacy Tx",
 			to:         suite.to.Hex(),
 			amount:     nil,
+			gasLimit:   1000,
 			gasPrice:   hundredInt,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -187,6 +194,17 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "negative amount - Legacy Tx",
 			to:         suite.to.Hex(),
 			amount:     minusOneInt,
+			gasLimit:   1000,
+			gasPrice:   hundredInt,
+			gasFeeCap:  nil,
+			gasTipCap:  nil,
+			expectPass: false,
+		},
+		{
+			msg:        "zero gas limit - Legacy Tx",
+			to:         suite.to.Hex(),
+			amount:     hundredInt,
+			gasLimit:   0,
 			gasPrice:   hundredInt,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -196,6 +214,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "nil gas price - Legacy Tx",
 			to:         suite.to.Hex(),
 			amount:     hundredInt,
+			gasLimit:   1000,
 			gasPrice:   nil,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -205,6 +224,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "negative gas price - Legacy Tx",
 			to:         suite.to.Hex(),
 			amount:     hundredInt,
+			gasLimit:   1000,
 			gasPrice:   minusOneInt,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -214,6 +234,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "zero gas price - Legacy Tx",
 			to:         suite.to.Hex(),
 			amount:     hundredInt,
+			gasLimit:   1000,
 			gasPrice:   zeroInt,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -223,6 +244,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "invalid from address - Legacy Tx",
 			to:         suite.to.Hex(),
 			amount:     hundredInt,
+			gasLimit:   1000,
 			gasPrice:   zeroInt,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -233,6 +255,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "out of bound gas fee - Legacy Tx",
 			to:         suite.to.Hex(),
 			amount:     hundredInt,
+			gasLimit:   1000,
 			gasPrice:   exp_2_255,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -242,6 +265,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "nil amount - AccessListTx",
 			to:         suite.to.Hex(),
 			amount:     nil,
+			gasLimit:   1000,
 			gasPrice:   hundredInt,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -253,6 +277,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "negative amount - AccessListTx",
 			to:         suite.to.Hex(),
 			amount:     minusOneInt,
+			gasLimit:   1000,
 			gasPrice:   hundredInt,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -260,10 +285,23 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			chainID:    nil,
 			expectPass: false,
 		},
+		{
+			msg:        "zero gas limit - AccessListTx",
+			to:         suite.to.Hex(),
+			amount:     hundredInt,
+			gasLimit:   0,
+			gasPrice:   zeroInt,
+			gasFeeCap:  nil,
+			gasTipCap:  nil,
+			accessList: &ethtypes.AccessList{},
+			chainID:    hundredInt,
+			expectPass: false,
+		},
 		{
 			msg:        "nil gas price - AccessListTx",
 			to:         suite.to.Hex(),
 			amount:     hundredInt,
+			gasLimit:   1000,
 			gasPrice:   nil,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -275,6 +313,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "negative gas price - AccessListTx",
 			to:         suite.to.Hex(),
 			amount:     hundredInt,
+			gasLimit:   1000,
 			gasPrice:   minusOneInt,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -286,6 +325,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "zero gas price - AccessListTx",
 			to:         suite.to.Hex(),
 			amount:     hundredInt,
+			gasLimit:   1000,
 			gasPrice:   zeroInt,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -297,6 +337,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "invalid from address - AccessListTx",
 			to:         suite.to.Hex(),
 			amount:     hundredInt,
+			gasLimit:   1000,
 			gasPrice:   zeroInt,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -309,6 +350,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "chain ID not set on AccessListTx",
 			to:         suite.to.Hex(),
 			amount:     hundredInt,
+			gasLimit:   1000,
 			gasPrice:   zeroInt,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -320,6 +362,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 			msg:        "nil tx.Data - AccessList Tx",
 			to:         suite.to.Hex(),
 			amount:     hundredInt,
+			gasLimit:   1000,
 			gasPrice:   zeroInt,
 			gasFeeCap:  nil,
 			gasTipCap:  nil,
@@ -332,7 +375,7 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 	for i, tc := range testCases {
 		to := common.HexToAddress(tc.from)
 
-		tx := types.NewTx(tc.chainID, 1, &to, tc.amount, 1000, tc.gasPrice, tc.gasFeeCap, tc.gasTipCap, nil, tc.accessList)
+		tx := types.NewTx(tc.chainID, 1, &to, tc.amount, tc.gasLimit, tc.gasPrice, tc.gasFeeCap, tc.gasTipCap, nil, tc.accessList)
 		tx.From = tc.from
 
 		// apply nil assignment here to test ValidateBasic function instead of NewTx

x/feemarket/keeper/integration_test.go

@@ -230,7 +230,6 @@ var _ = Describe("Feemarket", func() {
 						// Note that max priority fee per gas can't be higher than the max fee per gas (gasFeeCap), i.e. 30_000_000_000)
 						return txParams{nil, big.NewInt(minGasPrices - 10_000_000_000), big.NewInt(30_000_000_000), &ethtypes.AccessList{}}
 					}),
-
 					Entry("dynamic tx with GasFeeCap > MinGasPrices, EffectivePrice < MinGasPrices", func() txParams {
 						return txParams{nil, big.NewInt(minGasPrices + 10_000_000_000), big.NewInt(0), &ethtypes.AccessList{}}
 					}),
@@ -297,6 +296,7 @@ var _ = Describe("Feemarket", func() {
 					}),
 				)
 			})
+		})
 
 		Context("with MinGasPrices (feemarket param) < BaseFee (feemarket)", func() {
 			var (
@@ -379,6 +379,7 @@ var _ = Describe("Feemarket", func() {
 			Context("during DeliverTx", func() {
 				DescribeTable("should reject transactions with gasPrice < MinGasPrices",
 					func(malleate getprices) {
+
 						p := malleate()
 						to := tests.GenerateAddress()
 						msgEthereumTx := buildEthTx(privKey, &to, p.gasPrice, p.gasFeeCap, p.gasTipCap, p.accesses)
@@ -436,7 +437,6 @@ var _ = Describe("Feemarket", func() {
 			})
 		})
 	})
-	})
 })
 
 // setupTestWithContext sets up a test chain with an example Cosmos send msg,