fix: run validateBasic for vote before AddVote (#770)

* fix: run validateBasic before adding vote

* chore: add test for panic

Author: jaeseung-bae

types/block.go

@@ -13,6 +13,8 @@ import (
 	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
 	tmversion "github.com/tendermint/tendermint/proto/tendermint/version"
 
+	vrf "github.com/oasisprotocol/curve25519-voi/primitives/ed25519/extra/ecvrf"
+
 	"github.com/Finschia/ostracon/crypto"
 	"github.com/Finschia/ostracon/crypto/ed25519"
 	"github.com/Finschia/ostracon/crypto/merkle"
@@ -23,7 +25,6 @@ import (
 	tmsync "github.com/Finschia/ostracon/libs/sync"
 	ocproto "github.com/Finschia/ostracon/proto/ostracon/types"
 	"github.com/Finschia/ostracon/version"
-	vrf "github.com/oasisprotocol/curve25519-voi/primitives/ed25519/extra/ecvrf"
 )
 
 const (
@@ -824,7 +825,11 @@ func CommitToVoteSet(chainID string, commit *Commit, vals *ValidatorSet) *VoteSe
 		if commitSig.Absent() {
 			continue // OK, some precommits can be missing.
 		}
-		added, err := voteSet.AddVote(commit.GetVote(int32(idx)))
+		vote := commit.GetVote(int32(idx))
+		if err := vote.ValidateBasic(); err != nil {
+			panic(fmt.Errorf("failed to validate vote reconstructed from LastCommit: %w", err))
+		}
+		added, err := voteSet.AddVote(vote)
 		if !added || err != nil {
 			panic(fmt.Sprintf("Failed to reconstruct LastCommit: %v", err))
 		}

types/block_test.go

@@ -19,6 +19,8 @@ import (
 	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
 	tmversion "github.com/tendermint/tendermint/proto/tendermint/version"
 
+	vrf "github.com/oasisprotocol/curve25519-voi/primitives/ed25519/extra/ecvrf"
+
 	"github.com/Finschia/ostracon/crypto"
 	"github.com/Finschia/ostracon/crypto/merkle"
 	"github.com/Finschia/ostracon/crypto/tmhash"
@@ -27,7 +29,6 @@ import (
 	tmrand "github.com/Finschia/ostracon/libs/rand"
 	tmtime "github.com/Finschia/ostracon/types/time"
 	"github.com/Finschia/ostracon/version"
-	vrf "github.com/oasisprotocol/curve25519-voi/primitives/ed25519/extra/ecvrf"
 )
 
 var TestConsensusVersion = tmversion.Consensus{
@@ -717,6 +718,21 @@ func TestCommitToVoteSet(t *testing.T) {
 	}
 }
 
+func TestCommitToVoteSetShouldPanicWhenInvalidVote(t *testing.T) {
+	voteSet, valSet, _ := randVoteSet(1, 1, tmproto.PrecommitType, 10, 1)
+	chainID := voteSet.ChainID()
+	commitWithInvalidVote := &Commit{
+		Height: 1,
+		Signatures: []CommitSig{{
+			BlockIDFlag: BlockIDFlagCommit,
+		}},
+	}
+
+	assert.Panics(t, func() {
+		CommitToVoteSet(chainID, commitWithInvalidVote, valSet)
+	})
+}
+
 func TestCommitToVoteSetWithVotesForNilBlock(t *testing.T) {
 	blockID := makeBlockID([]byte("blockhash"), 1000, []byte("partshash"))