From 1197155181eea2746dccb76e4cccd1f99711e6c3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20Negovanovi=C4=87?= <stefan@ethernal.tech>
Date: Fri, 13 Sep 2024 15:25:28 +0200
Subject: [PATCH] fix: suppress gosec overflow issues

---
 aggregator/aggregator.go         | 2 +-
 aggregator/prover/prover.go      | 2 +-
 merkletree/split.go              | 2 +-
 sequencesender/sequencesender.go | 2 +-
 state/encoding_batch_v2.go       | 6 +++---
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/aggregator/aggregator.go b/aggregator/aggregator.go
index 8040e237..125bb97d 100644
--- a/aggregator/aggregator.go
+++ b/aggregator/aggregator.go
@@ -553,7 +553,7 @@ func (a *Aggregator) handleReceivedDataStream(
 						oldDBBatch.Batch.AccInputHash,
 						a.currentStreamBatch.BatchL2Data,
 						a.currentStreamBatch.L1InfoRoot,
-						uint64(a.currentStreamBatch.Timestamp.Unix()),
+						uint64(a.currentStreamBatch.Timestamp.Unix()), //nolint:gosec
 						a.currentStreamBatch.Coinbase,
 						forcedBlockhashL1,
 					)
diff --git a/aggregator/prover/prover.go b/aggregator/prover/prover.go
index a0a782f3..c1fc51d5 100644
--- a/aggregator/prover/prover.go
+++ b/aggregator/prover/prover.go
@@ -424,7 +424,7 @@ func GetStateRootFromProof(proof string) (common.Hash, error) {
 		if err != nil {
 			log.Fatal(err)
 		}
-		v[j] = uint64(u64)
+		v[j] = uint64(u64) //nolint:gosec
 		j++
 	}
 	bigSR := fea2scalar(v[:])
diff --git a/merkletree/split.go b/merkletree/split.go
index e264807a..a2c56cd3 100644
--- a/merkletree/split.go
+++ b/merkletree/split.go
@@ -39,7 +39,7 @@ func h4ToScalar(h4 []uint64) *big.Int {
 
 	for i := 1; i < 4; i++ {
 		b2 := new(big.Int).SetUint64(h4[i])
-		b2.Lsh(b2, uint(wordLength*i))
+		b2.Lsh(b2, uint(wordLength*i)) //nolint:gosec
 		result = result.Add(result, b2)
 	}
 
diff --git a/sequencesender/sequencesender.go b/sequencesender/sequencesender.go
index 1a0dcdbb..c1d58b36 100644
--- a/sequencesender/sequencesender.go
+++ b/sequencesender/sequencesender.go
@@ -530,7 +530,7 @@ func (s *SequenceSender) tryToSendSequence(ctx context.Context) {
 	// Sanity check: Wait also until current time is L1BlockTimestampMargin seconds above the
 	// timestamp of the last L2 block in the sequence
 	for {
-		currentTime := uint64(time.Now().Unix())
+		currentTime := uint64(time.Now().Unix()) //nolint:gosec
 
 		elapsed, waitTime := s.marginTimeElapsed(lastL2BlockTimestamp, currentTime, timeMargin)
 
diff --git a/state/encoding_batch_v2.go b/state/encoding_batch_v2.go
index 9d7d76c6..98c81dee 100644
--- a/state/encoding_batch_v2.go
+++ b/state/encoding_batch_v2.go
@@ -305,13 +305,13 @@ func DecodeTxRLP(txsData []byte, offset int) (int, *L2TxRaw, error) {
 	if err != nil {
 		return 0, nil, fmt.Errorf("can't get RLP length (offset=%d): %w", offset, err)
 	}
-	endPos := uint64(offset) + length + rLength + sLength + vLength + EfficiencyPercentageByteLength
+	endPos := uint64(offset) + length + rLength + sLength + vLength + EfficiencyPercentageByteLength //nolint:gosec
 	if endPos > uint64(len(txsData)) {
 		return 0, nil, fmt.Errorf("can't get tx because not enough data (endPos=%d lenData=%d): %w",
 			endPos, len(txsData), ErrInvalidBatchV2)
 	}
 	fullDataTx := txsData[offset:endPos]
-	dataStart := uint64(offset) + length
+	dataStart := uint64(offset) + length //nolint:gosec
 	txInfo := txsData[offset:dataStart]
 	rData := txsData[dataStart : dataStart+rLength]
 	sData := txsData[dataStart+rLength : dataStart+rLength+sLength]
@@ -360,7 +360,7 @@ func decodeRLPListLengthFromOffset(txsData []byte, offset int) (uint64, error) {
 	length := num - c0
 	if length > shortRlp { // If rlp is bigger than length 55
 		// n is the length of the rlp data without the header (1 byte) for example "0xf7"
-		pos64 := uint64(offset)
+		pos64 := uint64(offset) //nolint:gosec
 		lengthInByteOfSize := num - f7
 		if (pos64 + headerByteLength + lengthInByteOfSize) > txDataLength {
 			log.Debug("error not enough data: ")