cosmos · aljo242 · Nov 13, 2025 · Nov 4, 2025 · Nov 11, 2025
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -11,6 +11,8 @@
 ### BUG FIXES
 
 - [\#769](https://github.com/cosmos/evm/pull/769) Fix erc20 ibc middleware to not to validate sender address format.
+- [\#790](https://github.com/cosmos/evm/pull/790) fix panic in historical query due to missing EvmCoinInfo.
+- [\#816](https://github.com/cosmos/evm/pull/816) Avoid nil pointer when RPC requests execute before evmCoinInfo initialization in PreBlock with defaultEvmCoinInfo fallback.
 
 ## v0.5.0
 

diff --git a/x/vm/keeper/coin_info.go b/x/vm/keeper/coin_info.go
@@ -56,7 +56,7 @@ func (k Keeper) GetEvmCoinInfo(ctx sdk.Context) (coinInfo types.EvmCoinInfo) {
 	store := ctx.KVStore(k.storeKey)
 	bz := store.Get(types.KeyPrefixEvmCoinInfo)
 	if bz == nil {
-		return coinInfo
+		return k.defaultEvmCoinInfo
 	}
 	k.cdc.MustUnmarshal(bz, &coinInfo)
 	return

diff --git a/x/vm/keeper/keeper.go b/x/vm/keeper/keeper.go
@@ -81,6 +81,10 @@ type Keeper struct {
 	// evmMempool is the custom EVM appside mempool
 	// if it is nil, the default comet mempool will be used
 	evmMempool *evmmempool.ExperimentalEVMMempool
+
+	// defaultEvmCoinInfo is the default EVM coin info used when evmCoinInfo is not initialized in the state,
+	// mainly for historical queries.
+	defaultEvmCoinInfo types.EvmCoinInfo
 }
 
 // NewKeeper generates new evm module keeper
@@ -139,6 +143,13 @@ func (k Keeper) Logger(ctx sdk.Context) log.Logger {
 	return ctx.Logger().With("module", types.ModuleName)
 }
 
+// WithDefaultEvmCoinInfo set default EvmCoinInfo
+func (k *Keeper) WithDefaultEvmCoinInfo(coinInfo types.EvmCoinInfo) *Keeper {
+	k.defaultEvmCoinInfo = coinInfo
+	types.SetDefaultEvmCoinInfo(coinInfo)
+	return k
+}
+
 // ----------------------------------------------------------------------------
 // Block Bloom
 // Required by Web3 API.

diff --git a/x/vm/types/denom_config.go b/x/vm/types/denom_config.go
@@ -14,10 +14,29 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 )
 
+// defaultEvmCoinInfo provides a default configuration to prevent nil pointer dereferences
+// when RPC requests execute before evmCoinInfo is initialized in PreBlock.
+// This is set via SetDefaultEvmCoinInfo from the keeper's defaultEvmCoinInfo field.
+var defaultEvmCoinInfo *EvmCoinInfo
+
+// SetDefaultEvmCoinInfo sets the default EVM coin info to be used as fallback.
+// This should be called during keeper initialization.
+func SetDefaultEvmCoinInfo(coinInfo EvmCoinInfo) {
+	defaultEvmCoinInfo = &coinInfo
+}
+
 // evmCoinInfo hold the information of the coin used in the EVM as gas token. It
 // can only be set via `EVMConfigurator` before starting the app.
 var evmCoinInfo *EvmCoinInfo
 
+// getEvmCoinInfo returns the evmCoinInfo if set, otherwise returns defaultEvmCoinInfo.
+func getEvmCoinInfo() *EvmCoinInfo {
+	if evmCoinInfo == nil {
+		return defaultEvmCoinInfo
+	}
+	return evmCoinInfo
+}
+
 // setEVMCoinDecimals allows to define the decimals used in the representation
 // of the EVM coin.
 func setEVMCoinDecimals(d Decimals) error {
@@ -58,22 +77,22 @@ func setDisplayDenom(displayDenom string) error {
 // GetEVMCoinDecimals returns the decimals used in the representation of the EVM
 // coin.
 func GetEVMCoinDecimals() Decimals {
-	return Decimals(evmCoinInfo.Decimals)
+	return Decimals(getEvmCoinInfo().Decimals)
 }
 
 // GetEVMCoinDenom returns the denom used for the EVM coin.
 func GetEVMCoinDenom() string {
-	return evmCoinInfo.Denom
+	return getEvmCoinInfo().Denom
 }
 
 // GetEVMCoinExtendedDenom returns the extended denom used for the EVM coin.
 func GetEVMCoinExtendedDenom() string {
-	return evmCoinInfo.ExtendedDenom
+	return getEvmCoinInfo().ExtendedDenom
 }
 
 // GetEVMCoinDisplayDenom returns the display denom used for the EVM coin.
 func GetEVMCoinDisplayDenom() string {
-	return evmCoinInfo.DisplayDenom
+	return getEvmCoinInfo().DisplayDenom
 }
 
 // setEVMCoinInfo allows to define denom and decimals of the coin used in the EVM.

diff --git a/x/vm/types/denom_config_testing.go b/x/vm/types/denom_config_testing.go
@@ -18,6 +18,12 @@ import (
 // can only be set via `EVMConfigurator` before starting the app.
 var testingEvmCoinInfo *EvmCoinInfo
 
+// SetDefaultEvmCoinInfo sets the default EVM coin info to be used as fallback.
+// This should be called during keeper initialization.
+func SetDefaultEvmCoinInfo(coinInfo EvmCoinInfo) {
+	testingEvmCoinInfo = &coinInfo
+}
+
 // setEVMCoinDecimals allows to define the decimals used in the representation
 // of the EVM coin.
 func setEVMCoinDecimals(d Decimals) error {