diff --git a/pkg/local_object_storage/metabase/exists.go b/pkg/local_object_storage/metabase/exists.go
index 2e1b1dce8..0294dd3ba 100644
--- a/pkg/local_object_storage/metabase/exists.go
+++ b/pkg/local_object_storage/metabase/exists.go
@@ -1,6 +1,7 @@
 package meta
 
 import (
+	"bytes"
 	"context"
 	"fmt"
 	"time"
@@ -215,7 +216,7 @@ func getSplitInfo(tx *bbolt.Tx, cnr cid.ID, key []byte) (*objectSDK.SplitInfo, e
 
 	splitInfo := objectSDK.NewSplitInfo()
 
-	err := splitInfo.Unmarshal(rawSplitInfo)
+	err := splitInfo.Unmarshal(bytes.Clone(rawSplitInfo))
 	if err != nil {
 		return nil, fmt.Errorf("can't unmarshal split info from root index: %w", err)
 	}
diff --git a/pkg/local_object_storage/metabase/get.go b/pkg/local_object_storage/metabase/get.go
index 6a35d47f3..1cbf78ab2 100644
--- a/pkg/local_object_storage/metabase/get.go
+++ b/pkg/local_object_storage/metabase/get.go
@@ -185,7 +185,7 @@ func getVirtualObject(tx *bbolt.Tx, cnr cid.ID, key []byte, raw bool) (*objectSD
 
 	child := objectSDK.New()
 
-	err = child.Unmarshal(data)
+	err = child.Unmarshal(bytes.Clone(data))
 	if err != nil {
 		return nil, fmt.Errorf("can't unmarshal child with parent: %w", err)
 	}
@@ -219,7 +219,7 @@ func getECInfoError(tx *bbolt.Tx, cnr cid.ID, data []byte) error {
 		objData := getFromBucket(tx, primaryBucketName(cnr, make([]byte, bucketKeySize)), key)
 		if len(objData) != 0 {
 			obj := objectSDK.New()
-			if err := obj.Unmarshal(objData); err != nil {
+			if err := obj.Unmarshal(bytes.Clone(objData)); err != nil {
 				return err
 			}
 			chunk := objectSDK.ECChunk{}
diff --git a/pkg/local_object_storage/metabase/iterators.go b/pkg/local_object_storage/metabase/iterators.go
index d44c51fb2..1809bfd2d 100644
--- a/pkg/local_object_storage/metabase/iterators.go
+++ b/pkg/local_object_storage/metabase/iterators.go
@@ -1,6 +1,7 @@
 package meta
 
 import (
+	"bytes"
 	"context"
 	"errors"
 	"fmt"
@@ -195,7 +196,7 @@ func iteratePhyObjects(tx *bbolt.Tx, f func(cid.ID, oid.ID, *objectSDK.Object) e
 		}
 
 		return b.ForEach(func(k, v []byte) error {
-			if oid.Decode(k) == nil && obj.Unmarshal(v) == nil {
+			if oid.Decode(k) == nil && obj.Unmarshal(bytes.Clone(v)) == nil {
 				return f(cid, oid, obj)
 			}
 
diff --git a/pkg/local_object_storage/metabase/list.go b/pkg/local_object_storage/metabase/list.go
index b007ef0da..a7ff2222f 100644
--- a/pkg/local_object_storage/metabase/list.go
+++ b/pkg/local_object_storage/metabase/list.go
@@ -247,7 +247,7 @@ func selectNFromBucket(bkt *bbolt.Bucket, // main bucket
 		var ecInfo *objectcore.ECInfo
 		if objType == objectSDK.TypeRegular {
 			var o objectSDK.Object
-			if err := o.Unmarshal(v); err != nil {
+			if err := o.Unmarshal(bytes.Clone(v)); err != nil {
 				return nil, nil, nil, err
 			}
 			isLinkingObj = isLinkObject(&o)
@@ -413,7 +413,7 @@ func (db *DB) iterateOverObjectsInContainer(ctx context.Context, tx *bbolt.Tx, p
 		var ecInfo *objectcore.ECInfo
 		if prm.ObjectType == objectSDK.TypeRegular {
 			var o objectSDK.Object
-			if err := o.Unmarshal(v); err != nil {
+			if err := o.Unmarshal(bytes.Clone(v)); err != nil {
 				return err
 			}
 			isLinkingObj = isLinkObject(&o)
diff --git a/pkg/local_object_storage/metabase/put.go b/pkg/local_object_storage/metabase/put.go
index 09c5e04ad..2d94e7ae1 100644
--- a/pkg/local_object_storage/metabase/put.go
+++ b/pkg/local_object_storage/metabase/put.go
@@ -1,6 +1,7 @@
 package meta
 
 import (
+	"bytes"
 	"context"
 	"encoding/binary"
 	"errors"
@@ -313,7 +314,7 @@ func updateSplitInfoIndex(tx *bbolt.Tx, objKey []byte, cnr cid.ID, bucketName []
 			return si.Marshal()
 		default:
 			oldSI := objectSDK.NewSplitInfo()
-			if err := oldSI.Unmarshal(old); err != nil {
+			if err := oldSI.Unmarshal(bytes.Clone(old)); err != nil {
 				return nil, err
 			}
 			si = util.MergeSplitInfo(si, oldSI)