fix: add non-zero check of nextTokenID.Id for genesis

CHANGELOG.md

@@ -54,6 +54,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * chore(deps) [\#1141](https://github.com/Finschia/finschia-sdk/pull/1141) Bump github.com/cosmos/ledger-cosmos-go from 0.12.2 to 0.13.2 to fix ledger signing issue
 * (x/auth, x/slashing) [\#1179](https://github.com/Finschia/finschia-sdk/pull/1179) modify missing changes of converting to tendermint
 * (x/auth) [#1274](https://github.com/Finschia/finschia-sdk/pull/1274) `ModuleAccount.Validate` now reports a nil `.BaseAccount` instead of panicking.
+* (x/collection) [\#1276](https://github.com/Finschia/finschia-sdk/pull/1276) eliminates potential risk for Insufficient Sanity Check of tokenID in Genesis 
 
 ### Removed
 

x/collection/genesis.go

@@ -64,8 +64,11 @@
 		if len(contractNextTokenIDs.TokenIds) == 0 {
 			return sdkerrors.ErrInvalidRequest.Wrap("next token ids cannot be empty")
 		}
-		for _, nextTokenIDs := range contractNextTokenIDs.TokenIds {
-			if err := ValidateClassID(nextTokenIDs.ClassId); err != nil {
+		for _, nextTokenID := range contractNextTokenIDs.TokenIds {
+			if nextTokenID.Id.IsZero() {
+				return sdkerrors.ErrInvalidRequest.Wrap("nextTokenID.Id is not supposed to be zero")
+			}
+			if err := ValidateClassID(nextTokenID.ClassId); err != nil {
 				return err
 			}
 		}

x/collection/genesis_test.go

@@ -445,6 +445,17 @@ func TestValidateGenesis(t *testing.T) {
 			},
 			false,
 		},
+		"should throw error when next token id is zero in genesis": {
+			&collection.GenesisState{
+				Params: collection.Params{},
+				NextTokenIds: []collection.ContractNextTokenIDs{
+					{ContractId: "deadbeef", TokenIds: []collection.NextTokenID{
+						{ClassId: "deadbeef", Id: sdk.NewUint(0)},
+					}},
+				},
+			},
+			false,
+		},
 	}
 
 	for name, tc := range testCases {