add defensive logic to chain id check

zeta-chain · Jul 6, 2023 · 2a8b29d · 2a8b29d
1 parent 9fa9e11
commit 2a8b29d
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/zetaclient/evm_client.go b/zetaclient/evm_client.go
@@ -608,7 +608,10 @@ func (ob *EVMChainClient) observeInTX() error {
 				continue
 			}
 			destAddr := clienttypes.BytesToEthHex(event.DestinationAddress)
-
+			if ob.cfg.EVMChainConfigs[destChain.ChainId] == nil {
+				ob.logger.ExternalChainWatcher.Warn().Msgf("chain id not present in EVMChainConfigs  %d", event.DestinationChainId.Int64())
+				continue
+			}
 			if strings.EqualFold(destAddr, ob.cfg.EVMChainConfigs[destChain.ChainId].CoreParams.ZETATokenContractAddress) {
 				ob.logger.ExternalChainWatcher.Warn().Msgf("potential attack attempt: %s destination address is ZETA token contract address %s", destChain, destAddr)
 				continue