diff --git a/api/cbor_gen.go b/api/cbor_gen.go
index ec5b09caf..7a3f97e59 100644
--- a/api/cbor_gen.go
+++ b/api/cbor_gen.go
@@ -36,7 +36,7 @@ func (t *PaymentInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Channel (address.Address) (struct)
-	if len("Channel") > cbg.MaxLength {
+	if len("Channel") > 8192 {
 		return xerrors.Errorf("Value in field \"Channel\" was too long")
 	}
 
@@ -52,7 +52,7 @@ func (t *PaymentInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Vouchers ([]*paych.SignedVoucher) (slice)
-	if len("Vouchers") > cbg.MaxLength {
+	if len("Vouchers") > 8192 {
 		return xerrors.Errorf("Value in field \"Vouchers\" was too long")
 	}
 
@@ -63,7 +63,7 @@ func (t *PaymentInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Vouchers) > cbg.MaxLength {
+	if len(t.Vouchers) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Vouchers was too long")
 	}
 
@@ -78,7 +78,7 @@ func (t *PaymentInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.WaitSentinel (cid.Cid) (struct)
-	if len("WaitSentinel") > cbg.MaxLength {
+	if len("WaitSentinel") > 8192 {
 		return xerrors.Errorf("Value in field \"WaitSentinel\" was too long")
 	}
 
@@ -125,7 +125,7 @@ func (t *PaymentInfo) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -152,7 +152,7 @@ func (t *PaymentInfo) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.MaxLength {
+			if extra > 8192 {
 				return fmt.Errorf("t.Vouchers: array too large (%d)", extra)
 			}
 
@@ -228,7 +228,7 @@ func (t *SealedRef) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Size (abi.UnpaddedPieceSize) (uint64)
-	if len("Size") > cbg.MaxLength {
+	if len("Size") > 8192 {
 		return xerrors.Errorf("Value in field \"Size\" was too long")
 	}
 
@@ -244,7 +244,7 @@ func (t *SealedRef) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Offset (abi.PaddedPieceSize) (uint64)
-	if len("Offset") > cbg.MaxLength {
+	if len("Offset") > 8192 {
 		return xerrors.Errorf("Value in field \"Offset\" was too long")
 	}
 
@@ -260,7 +260,7 @@ func (t *SealedRef) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.SectorID (abi.SectorNumber) (uint64)
-	if len("SectorID") > cbg.MaxLength {
+	if len("SectorID") > 8192 {
 		return xerrors.Errorf("Value in field \"SectorID\" was too long")
 	}
 
@@ -307,7 +307,7 @@ func (t *SealedRef) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -383,7 +383,7 @@ func (t *SealedRefs) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Refs ([]api.SealedRef) (slice)
-	if len("Refs") > cbg.MaxLength {
+	if len("Refs") > 8192 {
 		return xerrors.Errorf("Value in field \"Refs\" was too long")
 	}
 
@@ -394,7 +394,7 @@ func (t *SealedRefs) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Refs) > cbg.MaxLength {
+	if len(t.Refs) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Refs was too long")
 	}
 
@@ -439,7 +439,7 @@ func (t *SealedRefs) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -456,7 +456,7 @@ func (t *SealedRefs) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.MaxLength {
+			if extra > 8192 {
 				return fmt.Errorf("t.Refs: array too large (%d)", extra)
 			}
 
@@ -509,7 +509,7 @@ func (t *SealTicket) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Epoch (abi.ChainEpoch) (int64)
-	if len("Epoch") > cbg.MaxLength {
+	if len("Epoch") > 8192 {
 		return xerrors.Errorf("Value in field \"Epoch\" was too long")
 	}
 
@@ -531,7 +531,7 @@ func (t *SealTicket) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Value (abi.SealRandomness) (slice)
-	if len("Value") > cbg.MaxLength {
+	if len("Value") > 8192 {
 		return xerrors.Errorf("Value in field \"Value\" was too long")
 	}
 
@@ -542,7 +542,7 @@ func (t *SealTicket) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Value) > cbg.ByteArrayMaxLen {
+	if len(t.Value) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.Value was too long")
 	}
 
@@ -586,7 +586,7 @@ func (t *SealTicket) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -599,10 +599,10 @@ func (t *SealTicket) UnmarshalCBOR(r io.Reader) (err error) {
 		case "Epoch":
 			{
 				maj, extra, err := cr.ReadHeader()
-				var extraI int64
 				if err != nil {
 					return err
 				}
+				var extraI int64
 				switch maj {
 				case cbg.MajUnsignedInt:
 					extraI = int64(extra)
@@ -629,7 +629,7 @@ func (t *SealTicket) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.ByteArrayMaxLen {
+			if extra > 2097152 {
 				return fmt.Errorf("t.Value: byte array too large (%d)", extra)
 			}
 			if maj != cbg.MajByteString {
@@ -665,7 +665,7 @@ func (t *SealSeed) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Epoch (abi.ChainEpoch) (int64)
-	if len("Epoch") > cbg.MaxLength {
+	if len("Epoch") > 8192 {
 		return xerrors.Errorf("Value in field \"Epoch\" was too long")
 	}
 
@@ -687,7 +687,7 @@ func (t *SealSeed) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Value (abi.InteractiveSealRandomness) (slice)
-	if len("Value") > cbg.MaxLength {
+	if len("Value") > 8192 {
 		return xerrors.Errorf("Value in field \"Value\" was too long")
 	}
 
@@ -698,7 +698,7 @@ func (t *SealSeed) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Value) > cbg.ByteArrayMaxLen {
+	if len(t.Value) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.Value was too long")
 	}
 
@@ -742,7 +742,7 @@ func (t *SealSeed) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -755,10 +755,10 @@ func (t *SealSeed) UnmarshalCBOR(r io.Reader) (err error) {
 		case "Epoch":
 			{
 				maj, extra, err := cr.ReadHeader()
-				var extraI int64
 				if err != nil {
 					return err
 				}
+				var extraI int64
 				switch maj {
 				case cbg.MajUnsignedInt:
 					extraI = int64(extra)
@@ -785,7 +785,7 @@ func (t *SealSeed) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.ByteArrayMaxLen {
+			if extra > 2097152 {
 				return fmt.Errorf("t.Value: byte array too large (%d)", extra)
 			}
 			if maj != cbg.MajByteString {
@@ -821,7 +821,7 @@ func (t *SectorPiece) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Piece (abi.PieceInfo) (struct)
-	if len("Piece") > cbg.MaxLength {
+	if len("Piece") > 8192 {
 		return xerrors.Errorf("Value in field \"Piece\" was too long")
 	}
 
@@ -837,7 +837,7 @@ func (t *SectorPiece) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.DealInfo (piece.PieceDealInfo) (struct)
-	if len("DealInfo") > cbg.MaxLength {
+	if len("DealInfo") > 8192 {
 		return xerrors.Errorf("Value in field \"DealInfo\" was too long")
 	}
 
@@ -883,7 +883,7 @@ func (t *SectorPiece) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
diff --git a/blockstore/cbor_gen.go b/blockstore/cbor_gen.go
index 063aeccae..c53e9e850 100644
--- a/blockstore/cbor_gen.go
+++ b/blockstore/cbor_gen.go
@@ -44,7 +44,7 @@ func (t *NetRpcReq) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Cid ([]cid.Cid) (slice)
-	if len(t.Cid) > cbg.MaxLength {
+	if len(t.Cid) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Cid was too long")
 	}
 
@@ -60,7 +60,7 @@ func (t *NetRpcReq) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Data ([][]uint8) (slice)
-	if len(t.Data) > cbg.MaxLength {
+	if len(t.Data) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Data was too long")
 	}
 
@@ -68,7 +68,7 @@ func (t *NetRpcReq) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 	for _, v := range t.Data {
-		if len(v) > cbg.ByteArrayMaxLen {
+		if len(v) > 2097152 {
 			return xerrors.Errorf("Byte array in field v was too long")
 		}
 
@@ -141,7 +141,7 @@ func (t *NetRpcReq) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.Cid: array too large (%d)", extra)
 	}
 
@@ -182,7 +182,7 @@ func (t *NetRpcReq) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.Data: array too large (%d)", extra)
 	}
 
@@ -208,7 +208,7 @@ func (t *NetRpcReq) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.ByteArrayMaxLen {
+			if extra > 2097152 {
 				return fmt.Errorf("t.Data[i]: byte array too large (%d)", extra)
 			}
 			if maj != cbg.MajByteString {
@@ -254,7 +254,7 @@ func (t *NetRpcResp) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Data ([]uint8) (slice)
-	if len(t.Data) > cbg.ByteArrayMaxLen {
+	if len(t.Data) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.Data was too long")
 	}
 
@@ -326,7 +326,7 @@ func (t *NetRpcResp) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.ByteArrayMaxLen {
+	if extra > 2097152 {
 		return fmt.Errorf("t.Data: byte array too large (%d)", extra)
 	}
 	if maj != cbg.MajByteString {
@@ -364,7 +364,7 @@ func (t *NetRpcErr) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Msg (string) (string)
-	if len(t.Msg) > cbg.MaxLength {
+	if len(t.Msg) > 8192 {
 		return xerrors.Errorf("Value in field t.Msg was too long")
 	}
 
@@ -429,7 +429,7 @@ func (t *NetRpcErr) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.Msg (string) (string)
 
 	{
-		sval, err := cbg.ReadString(cr)
+		sval, err := cbg.ReadStringWithMax(cr, 8192)
 		if err != nil {
 			return err
 		}
diff --git a/chain/exchange/cbor_gen.go b/chain/exchange/cbor_gen.go
index 7d13fd336..4aa74f0c0 100644
--- a/chain/exchange/cbor_gen.go
+++ b/chain/exchange/cbor_gen.go
@@ -35,7 +35,7 @@ func (t *Request) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Head ([]cid.Cid) (slice)
-	if len(t.Head) > cbg.MaxLength {
+	if len(t.Head) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Head was too long")
 	}
 
@@ -95,7 +95,7 @@ func (t *Request) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.Head: array too large (%d)", extra)
 	}
 
@@ -181,7 +181,7 @@ func (t *Response) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.ErrorMessage (string) (string)
-	if len(t.ErrorMessage) > cbg.MaxLength {
+	if len(t.ErrorMessage) > 8192 {
 		return xerrors.Errorf("Value in field t.ErrorMessage was too long")
 	}
 
@@ -193,7 +193,7 @@ func (t *Response) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Chain ([]*exchange.BSTipSet) (slice)
-	if len(t.Chain) > cbg.MaxLength {
+	if len(t.Chain) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Chain was too long")
 	}
 
@@ -249,7 +249,7 @@ func (t *Response) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.ErrorMessage (string) (string)
 
 	{
-		sval, err := cbg.ReadString(cr)
+		sval, err := cbg.ReadStringWithMax(cr, 8192)
 		if err != nil {
 			return err
 		}
@@ -263,7 +263,7 @@ func (t *Response) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.Chain: array too large (%d)", extra)
 	}
 
@@ -337,7 +337,7 @@ func (t *CompactedMessagesCBOR) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.BlsIncludes ([]exchange.messageIndices) (slice)
-	if len(t.BlsIncludes) > cbg.MaxLength {
+	if len(t.BlsIncludes) > 8192 {
 		return xerrors.Errorf("Slice value in field t.BlsIncludes was too long")
 	}
 
@@ -367,7 +367,7 @@ func (t *CompactedMessagesCBOR) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.SecpkIncludes ([]exchange.messageIndices) (slice)
-	if len(t.SecpkIncludes) > cbg.MaxLength {
+	if len(t.SecpkIncludes) > 8192 {
 		return xerrors.Errorf("Slice value in field t.SecpkIncludes was too long")
 	}
 
@@ -461,7 +461,7 @@ func (t *CompactedMessagesCBOR) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.BlsIncludes: array too large (%d)", extra)
 	}
 
@@ -547,7 +547,7 @@ func (t *CompactedMessagesCBOR) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.SecpkIncludes: array too large (%d)", extra)
 	}
 
@@ -596,7 +596,7 @@ func (t *BSTipSet) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Blocks ([]*types.BlockHeader) (slice)
-	if len(t.Blocks) > cbg.MaxLength {
+	if len(t.Blocks) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Blocks was too long")
 	}
 
@@ -647,7 +647,7 @@ func (t *BSTipSet) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.Blocks: array too large (%d)", extra)
 	}
 
diff --git a/chain/types/cbor_gen.go b/chain/types/cbor_gen.go
index ba84c1e50..dde703cee 100644
--- a/chain/types/cbor_gen.go
+++ b/chain/types/cbor_gen.go
@@ -55,7 +55,7 @@ func (t *BlockHeader) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.BeaconEntries ([]types.BeaconEntry) (slice)
-	if len(t.BeaconEntries) > cbg.MaxLength {
+	if len(t.BeaconEntries) > 8192 {
 		return xerrors.Errorf("Slice value in field t.BeaconEntries was too long")
 	}
 
@@ -70,7 +70,7 @@ func (t *BlockHeader) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.WinPoStProof ([]proof.PoStProof) (slice)
-	if len(t.WinPoStProof) > cbg.MaxLength {
+	if len(t.WinPoStProof) > 8192 {
 		return xerrors.Errorf("Slice value in field t.WinPoStProof was too long")
 	}
 
@@ -85,7 +85,7 @@ func (t *BlockHeader) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Parents ([]cid.Cid) (slice)
-	if len(t.Parents) > cbg.MaxLength {
+	if len(t.Parents) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Parents was too long")
 	}
 
@@ -240,7 +240,7 @@ func (t *BlockHeader) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.BeaconEntries: array too large (%d)", extra)
 	}
 
@@ -278,7 +278,7 @@ func (t *BlockHeader) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.WinPoStProof: array too large (%d)", extra)
 	}
 
@@ -316,7 +316,7 @@ func (t *BlockHeader) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.Parents: array too large (%d)", extra)
 	}
 
@@ -362,10 +362,10 @@ func (t *BlockHeader) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.Height (abi.ChainEpoch) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
@@ -513,7 +513,7 @@ func (t *Ticket) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.VRFProof ([]uint8) (slice)
-	if len(t.VRFProof) > cbg.ByteArrayMaxLen {
+	if len(t.VRFProof) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.VRFProof was too long")
 	}
 
@@ -558,7 +558,7 @@ func (t *Ticket) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.ByteArrayMaxLen {
+	if extra > 2097152 {
 		return fmt.Errorf("t.VRFProof: byte array too large (%d)", extra)
 	}
 	if maj != cbg.MajByteString {
@@ -602,7 +602,7 @@ func (t *ElectionProof) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.VRFProof ([]uint8) (slice)
-	if len(t.VRFProof) > cbg.ByteArrayMaxLen {
+	if len(t.VRFProof) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.VRFProof was too long")
 	}
 
@@ -643,10 +643,10 @@ func (t *ElectionProof) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.WinCount (int64) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
@@ -672,7 +672,7 @@ func (t *ElectionProof) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.ByteArrayMaxLen {
+	if extra > 2097152 {
 		return fmt.Errorf("t.VRFProof: byte array too large (%d)", extra)
 	}
 	if maj != cbg.MajByteString {
@@ -759,7 +759,7 @@ func (t *Message) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Params ([]uint8) (slice)
-	if len(t.Params) > cbg.ByteArrayMaxLen {
+	if len(t.Params) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.Params was too long")
 	}
 
@@ -855,10 +855,10 @@ func (t *Message) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.GasLimit (int64) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
@@ -916,7 +916,7 @@ func (t *Message) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.ByteArrayMaxLen {
+	if extra > 2097152 {
 		return fmt.Errorf("t.Params: byte array too large (%d)", extra)
 	}
 	if maj != cbg.MajByteString {
@@ -1351,7 +1351,7 @@ func (t *BlockMsg) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.BlsMessages ([]cid.Cid) (slice)
-	if len(t.BlsMessages) > cbg.MaxLength {
+	if len(t.BlsMessages) > 8192 {
 		return xerrors.Errorf("Slice value in field t.BlsMessages was too long")
 	}
 
@@ -1367,7 +1367,7 @@ func (t *BlockMsg) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.SecpkMessages ([]cid.Cid) (slice)
-	if len(t.SecpkMessages) > cbg.MaxLength {
+	if len(t.SecpkMessages) > 8192 {
 		return xerrors.Errorf("Slice value in field t.SecpkMessages was too long")
 	}
 
@@ -1433,7 +1433,7 @@ func (t *BlockMsg) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.BlsMessages: array too large (%d)", extra)
 	}
 
@@ -1474,7 +1474,7 @@ func (t *BlockMsg) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.SecpkMessages: array too large (%d)", extra)
 	}
 
@@ -1526,7 +1526,7 @@ func (t *ExpTipSet) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Cids ([]cid.Cid) (slice)
-	if len(t.Cids) > cbg.MaxLength {
+	if len(t.Cids) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Cids was too long")
 	}
 
@@ -1542,7 +1542,7 @@ func (t *ExpTipSet) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Blocks ([]*types.BlockHeader) (slice)
-	if len(t.Blocks) > cbg.MaxLength {
+	if len(t.Blocks) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Blocks was too long")
 	}
 
@@ -1566,6 +1566,7 @@ func (t *ExpTipSet) MarshalCBOR(w io.Writer) error {
 			return err
 		}
 	}
+
 	return nil
 }
 
@@ -1599,7 +1600,7 @@ func (t *ExpTipSet) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.Cids: array too large (%d)", extra)
 	}
 
@@ -1640,7 +1641,7 @@ func (t *ExpTipSet) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.Blocks: array too large (%d)", extra)
 	}
 
@@ -1684,10 +1685,10 @@ func (t *ExpTipSet) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.Height (abi.ChainEpoch) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
@@ -1730,7 +1731,7 @@ func (t *BeaconEntry) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Data ([]uint8) (slice)
-	if len(t.Data) > cbg.ByteArrayMaxLen {
+	if len(t.Data) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.Data was too long")
 	}
 
@@ -1789,7 +1790,7 @@ func (t *BeaconEntry) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.ByteArrayMaxLen {
+	if extra > 2097152 {
 		return fmt.Errorf("t.Data: byte array too large (%d)", extra)
 	}
 	if maj != cbg.MajByteString {
@@ -1970,7 +1971,7 @@ func (t *Event) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Entries ([]types.EventEntry) (slice)
-	if len(t.Entries) > cbg.MaxLength {
+	if len(t.Entries) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Entries was too long")
 	}
 
@@ -2030,7 +2031,7 @@ func (t *Event) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.Entries: array too large (%d)", extra)
 	}
 
@@ -2084,7 +2085,7 @@ func (t *EventEntry) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Key (string) (string)
-	if len(t.Key) > cbg.MaxLength {
+	if len(t.Key) > 8192 {
 		return xerrors.Errorf("Value in field t.Key was too long")
 	}
 
@@ -2102,7 +2103,7 @@ func (t *EventEntry) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Value ([]uint8) (slice)
-	if len(t.Value) > cbg.ByteArrayMaxLen {
+	if len(t.Value) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.Value was too long")
 	}
 
@@ -2156,7 +2157,7 @@ func (t *EventEntry) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.Key (string) (string)
 
 	{
-		sval, err := cbg.ReadString(cr)
+		sval, err := cbg.ReadStringWithMax(cr, 8192)
 		if err != nil {
 			return err
 		}
@@ -2184,7 +2185,7 @@ func (t *EventEntry) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.ByteArrayMaxLen {
+	if extra > 2097152 {
 		return fmt.Errorf("t.Value: byte array too large (%d)", extra)
 	}
 	if maj != cbg.MajByteString {
@@ -2217,7 +2218,7 @@ func (t *GasTrace) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Name (string) (string)
-	if len(t.Name) > cbg.MaxLength {
+	if len(t.Name) > 8192 {
 		return xerrors.Errorf("Value in field t.Name was too long")
 	}
 
@@ -2271,6 +2272,7 @@ func (t *GasTrace) MarshalCBOR(w io.Writer) error {
 			return err
 		}
 	}
+
 	return nil
 }
 
@@ -2300,7 +2302,7 @@ func (t *GasTrace) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.Name (string) (string)
 
 	{
-		sval, err := cbg.ReadString(cr)
+		sval, err := cbg.ReadStringWithMax(cr, 8192)
 		if err != nil {
 			return err
 		}
@@ -2310,10 +2312,10 @@ func (t *GasTrace) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.TotalGas (int64) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
@@ -2335,10 +2337,10 @@ func (t *GasTrace) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.ComputeGas (int64) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
@@ -2360,10 +2362,10 @@ func (t *GasTrace) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.StorageGas (int64) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
@@ -2385,10 +2387,10 @@ func (t *GasTrace) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.TimeTaken (time.Duration) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
@@ -2522,7 +2524,7 @@ func (t *MessageTrace) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Params ([]uint8) (slice)
-	if len(t.Params) > cbg.ByteArrayMaxLen {
+	if len(t.Params) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.Params was too long")
 	}
 
@@ -2624,7 +2626,7 @@ func (t *MessageTrace) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.ByteArrayMaxLen {
+	if extra > 2097152 {
 		return fmt.Errorf("t.Params: byte array too large (%d)", extra)
 	}
 	if maj != cbg.MajByteString {
@@ -2713,7 +2715,7 @@ func (t *ReturnTrace) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Return ([]uint8) (slice)
-	if len(t.Return) > cbg.ByteArrayMaxLen {
+	if len(t.Return) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.Return was too long")
 	}
 
@@ -2760,10 +2762,10 @@ func (t *ReturnTrace) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.ExitCode (exitcode.ExitCode) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
@@ -2789,7 +2791,7 @@ func (t *ReturnTrace) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.ByteArrayMaxLen {
+	if extra > 2097152 {
 		return fmt.Errorf("t.Return: byte array too large (%d)", extra)
 	}
 	if maj != cbg.MajByteString {
diff --git a/cmd/lotus-shed/shedgen/cbor_gen.go b/cmd/lotus-shed/shedgen/cbor_gen.go
index af0a42fd9..10b41827f 100644
--- a/cmd/lotus-shed/shedgen/cbor_gen.go
+++ b/cmd/lotus-shed/shedgen/cbor_gen.go
@@ -31,7 +31,7 @@ func (t *CarbNode) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Sub ([]cid.Cid) (slice)
-	if len("Sub") > cbg.MaxLength {
+	if len("Sub") > 8192 {
 		return xerrors.Errorf("Value in field \"Sub\" was too long")
 	}
 
@@ -42,7 +42,7 @@ func (t *CarbNode) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Sub) > cbg.MaxLength {
+	if len(t.Sub) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Sub was too long")
 	}
 
@@ -88,7 +88,7 @@ func (t *CarbNode) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -105,7 +105,7 @@ func (t *CarbNode) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.MaxLength {
+			if extra > 8192 {
 				return fmt.Errorf("t.Sub: array too large (%d)", extra)
 			}
 
diff --git a/conformance/chaos/cbor_gen.go b/conformance/chaos/cbor_gen.go
index a8561163e..09d48ad10 100644
--- a/conformance/chaos/cbor_gen.go
+++ b/conformance/chaos/cbor_gen.go
@@ -37,7 +37,7 @@ func (t *State) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Value (string) (string)
-	if len(t.Value) > cbg.MaxLength {
+	if len(t.Value) > 8192 {
 		return xerrors.Errorf("Value in field t.Value was too long")
 	}
 
@@ -49,7 +49,7 @@ func (t *State) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Unmarshallable ([]*chaos.UnmarshallableCBOR) (slice)
-	if len(t.Unmarshallable) > cbg.MaxLength {
+	if len(t.Unmarshallable) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Unmarshallable was too long")
 	}
 
@@ -91,7 +91,7 @@ func (t *State) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.Value (string) (string)
 
 	{
-		sval, err := cbg.ReadString(cr)
+		sval, err := cbg.ReadStringWithMax(cr, 8192)
 		if err != nil {
 			return err
 		}
@@ -105,7 +105,7 @@ func (t *State) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.Unmarshallable: array too large (%d)", extra)
 	}
 
@@ -175,7 +175,7 @@ func (t *CallerValidationArgs) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Addrs ([]address.Address) (slice)
-	if len(t.Addrs) > cbg.MaxLength {
+	if len(t.Addrs) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Addrs was too long")
 	}
 
@@ -190,7 +190,7 @@ func (t *CallerValidationArgs) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Types ([]cid.Cid) (slice)
-	if len(t.Types) > cbg.MaxLength {
+	if len(t.Types) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Types was too long")
 	}
 
@@ -233,10 +233,10 @@ func (t *CallerValidationArgs) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.Branch (chaos.CallerValidationBranch) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
@@ -262,7 +262,7 @@ func (t *CallerValidationArgs) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.Addrs: array too large (%d)", extra)
 	}
 
@@ -300,7 +300,7 @@ func (t *CallerValidationArgs) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.Types: array too large (%d)", extra)
 	}
 
@@ -564,7 +564,7 @@ func (t *SendArgs) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Params ([]uint8) (slice)
-	if len(t.Params) > cbg.ByteArrayMaxLen {
+	if len(t.Params) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.Params was too long")
 	}
 
@@ -641,7 +641,7 @@ func (t *SendArgs) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.ByteArrayMaxLen {
+	if extra > 2097152 {
 		return fmt.Errorf("t.Params: byte array too large (%d)", extra)
 	}
 	if maj != cbg.MajByteString {
@@ -674,7 +674,7 @@ func (t *SendReturn) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Return (builtin.CBORBytes) (slice)
-	if len(t.Return) > cbg.ByteArrayMaxLen {
+	if len(t.Return) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.Return was too long")
 	}
 
@@ -696,6 +696,7 @@ func (t *SendReturn) MarshalCBOR(w io.Writer) error {
 			return err
 		}
 	}
+
 	return nil
 }
 
@@ -729,7 +730,7 @@ func (t *SendReturn) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.ByteArrayMaxLen {
+	if extra > 2097152 {
 		return fmt.Errorf("t.Return: byte array too large (%d)", extra)
 	}
 	if maj != cbg.MajByteString {
@@ -747,10 +748,10 @@ func (t *SendReturn) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.Code (exitcode.ExitCode) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
@@ -787,7 +788,7 @@ func (t *MutateStateArgs) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Value (string) (string)
-	if len(t.Value) > cbg.MaxLength {
+	if len(t.Value) > 8192 {
 		return xerrors.Errorf("Value in field t.Value was too long")
 	}
 
@@ -808,6 +809,7 @@ func (t *MutateStateArgs) MarshalCBOR(w io.Writer) error {
 			return err
 		}
 	}
+
 	return nil
 }
 
@@ -837,7 +839,7 @@ func (t *MutateStateArgs) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.Value (string) (string)
 
 	{
-		sval, err := cbg.ReadString(cr)
+		sval, err := cbg.ReadStringWithMax(cr, 8192)
 		if err != nil {
 			return err
 		}
@@ -847,10 +849,10 @@ func (t *MutateStateArgs) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.Branch (chaos.MutateStateBranch) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
@@ -898,7 +900,7 @@ func (t *AbortWithArgs) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Message (string) (string)
-	if len(t.Message) > cbg.MaxLength {
+	if len(t.Message) > 8192 {
 		return xerrors.Errorf("Value in field t.Message was too long")
 	}
 
@@ -942,10 +944,10 @@ func (t *AbortWithArgs) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.Code (exitcode.ExitCode) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
@@ -967,7 +969,7 @@ func (t *AbortWithArgs) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.Message (string) (string)
 
 	{
-		sval, err := cbg.ReadString(cr)
+		sval, err := cbg.ReadStringWithMax(cr, 8192)
 		if err != nil {
 			return err
 		}
@@ -1099,10 +1101,10 @@ func (t *InspectRuntimeReturn) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.CurrEpoch (abi.ChainEpoch) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
diff --git a/go.mod b/go.mod
index 7f556551d..89d3f248a 100644
--- a/go.mod
+++ b/go.mod
@@ -46,7 +46,7 @@ require (
 	github.com/filecoin-project/go-jsonrpc v0.3.1
 	github.com/filecoin-project/go-padreader v0.0.1
 	github.com/filecoin-project/go-paramfetch v0.0.4
-	github.com/filecoin-project/go-state-types v0.12.9-0.20240125111137-dbf4b5b126e2
+	github.com/filecoin-project/go-state-types v0.12.9-0.20240208185747-90fc5ee8a28f
 	github.com/filecoin-project/go-statemachine v1.0.3
 	github.com/filecoin-project/go-statestore v0.2.0
 	github.com/filecoin-project/go-storedcounter v0.1.0
@@ -145,7 +145,7 @@ require (
 	github.com/triplewz/poseidon v0.0.0-20220525065023-a7cdb0e183e7
 	github.com/urfave/cli/v2 v2.25.5
 	github.com/whyrusleeping/bencher v0.0.0-20190829221104-bb6607aa8bba
-	github.com/whyrusleeping/cbor-gen v0.0.0-20240124134906-0efd71a8493b
+	github.com/whyrusleeping/cbor-gen v0.0.0-20240207022414-c5f90eb30d41
 	github.com/whyrusleeping/ledger-filecoin-go v0.9.1-0.20201010031517-c3dcc1bddce4
 	github.com/whyrusleeping/multiaddr-filter v0.0.0-20160516205228-e903e4adabd7
 	github.com/xeipuuv/gojsonschema v1.2.0
diff --git a/go.sum b/go.sum
index c8b976710..36fd3c34e 100644
--- a/go.sum
+++ b/go.sum
@@ -334,8 +334,8 @@ github.com/filecoin-project/go-state-types v0.1.0/go.mod h1:ezYnPf0bNkTsDibL/psS
 github.com/filecoin-project/go-state-types v0.1.6/go.mod h1:UwGVoMsULoCK+bWjEdd/xLCvLAQFBC7EDT477SKml+Q=
 github.com/filecoin-project/go-state-types v0.1.10/go.mod h1:UwGVoMsULoCK+bWjEdd/xLCvLAQFBC7EDT477SKml+Q=
 github.com/filecoin-project/go-state-types v0.11.2-0.20230712101859-8f37624fa540/go.mod h1:SyNPwTsU7I22gL2r0OAPcImvLoTVfgRwdK/Y5rR1zz8=
-github.com/filecoin-project/go-state-types v0.12.9-0.20240125111137-dbf4b5b126e2 h1:kl0+C3V2skRVuCDEMLv6A0h52JudeB8S8b8DbhEH36g=
-github.com/filecoin-project/go-state-types v0.12.9-0.20240125111137-dbf4b5b126e2/go.mod h1:m/6/3fAMykSC9eCWCGlwh89SN/+pDVapo+jRDov1JXk=
+github.com/filecoin-project/go-state-types v0.12.9-0.20240208185747-90fc5ee8a28f h1:MU6ZfVV01kltUt/o9rFE/EJoMPH3pQVnhstOfR4BCfs=
+github.com/filecoin-project/go-state-types v0.12.9-0.20240208185747-90fc5ee8a28f/go.mod h1:myupwhyuJmNaOCyodpQwutw9nWUCJ3ZtftZIzvasgag=
 github.com/filecoin-project/go-statemachine v0.0.0-20200925024713-05bd7c71fbfe/go.mod h1:FGwQgZAt2Gh5mjlwJUlVB62JeYdo+if0xWxSEfBD9ig=
 github.com/filecoin-project/go-statemachine v1.0.3 h1:N07o6alys+V1tNoSTi4WuuoeNC4erS/6jE74+NsgQuk=
 github.com/filecoin-project/go-statemachine v1.0.3/go.mod h1:jZdXXiHa61n4NmgWFG4w8tnqgvZVHYbJ3yW7+y8bF54=
@@ -1648,8 +1648,8 @@ github.com/whyrusleeping/cbor-gen v0.0.0-20200826160007-0b9f6c5fb163/go.mod h1:f
 github.com/whyrusleeping/cbor-gen v0.0.0-20210118024343-169e9d70c0c2/go.mod h1:fgkXqYy7bV2cFeIEOkVTZS/WjXARfBqSH6Q2qHL33hQ=
 github.com/whyrusleeping/cbor-gen v0.0.0-20210303213153-67a261a1d291/go.mod h1:fgkXqYy7bV2cFeIEOkVTZS/WjXARfBqSH6Q2qHL33hQ=
 github.com/whyrusleeping/cbor-gen v0.0.0-20220323183124-98fa8256a799/go.mod h1:fgkXqYy7bV2cFeIEOkVTZS/WjXARfBqSH6Q2qHL33hQ=
-github.com/whyrusleeping/cbor-gen v0.0.0-20240124134906-0efd71a8493b h1:+Yd0HVs6f9v2sRlpqcODhojlOd2PiBtWZTPcYmaSm5A=
-github.com/whyrusleeping/cbor-gen v0.0.0-20240124134906-0efd71a8493b/go.mod h1:fgkXqYy7bV2cFeIEOkVTZS/WjXARfBqSH6Q2qHL33hQ=
+github.com/whyrusleeping/cbor-gen v0.0.0-20240207022414-c5f90eb30d41 h1:w7OO90SNCSrjl2mgFna9Cpx+o0wcwnRMhalfaQU/dAE=
+github.com/whyrusleeping/cbor-gen v0.0.0-20240207022414-c5f90eb30d41/go.mod h1:pM99HXyEbSQHcosHc0iW7YFmwnscr+t9Te4ibko05so=
 github.com/whyrusleeping/chunker v0.0.0-20181014151217-fe64bd25879f h1:jQa4QT2UP9WYv2nzyawpKMOCl+Z/jW7djv2/J50lj9E=
 github.com/whyrusleeping/chunker v0.0.0-20181014151217-fe64bd25879f/go.mod h1:p9UJB6dDgdPgMJZs7UjUOdulKyRr9fqkS+6JKAInPy8=
 github.com/whyrusleeping/go-keyspace v0.0.0-20160322163242-5b898ac5add1 h1:EKhdznlJHPMoKr0XTrX+IlJs1LH3lyx2nfr1dOlZ79k=
diff --git a/node/hello/cbor_gen.go b/node/hello/cbor_gen.go
index dd36110d1..91a270ff7 100644
--- a/node/hello/cbor_gen.go
+++ b/node/hello/cbor_gen.go
@@ -35,7 +35,7 @@ func (t *HelloMessage) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.HeaviestTipSet ([]cid.Cid) (slice)
-	if len(t.HeaviestTipSet) > cbg.MaxLength {
+	if len(t.HeaviestTipSet) > 8192 {
 		return xerrors.Errorf("Slice value in field t.HeaviestTipSet was too long")
 	}
 
@@ -105,7 +105,7 @@ func (t *HelloMessage) UnmarshalCBOR(r io.Reader) (err error) {
 		return err
 	}
 
-	if extra > cbg.MaxLength {
+	if extra > 8192 {
 		return fmt.Errorf("t.HeaviestTipSet: array too large (%d)", extra)
 	}
 
@@ -142,10 +142,10 @@ func (t *HelloMessage) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.HeaviestTipSetHeight (abi.ChainEpoch) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
@@ -223,6 +223,7 @@ func (t *LatencyMessage) MarshalCBOR(w io.Writer) error {
 			return err
 		}
 	}
+
 	return nil
 }
 
@@ -252,10 +253,10 @@ func (t *LatencyMessage) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.TArrival (int64) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
@@ -277,10 +278,10 @@ func (t *LatencyMessage) UnmarshalCBOR(r io.Reader) (err error) {
 	// t.TSent (int64) (int64)
 	{
 		maj, extra, err := cr.ReadHeader()
-		var extraI int64
 		if err != nil {
 			return err
 		}
+		var extraI int64
 		switch maj {
 		case cbg.MajUnsignedInt:
 			extraI = int64(extra)
diff --git a/paychmgr/cbor_gen.go b/paychmgr/cbor_gen.go
index 46a6aa6b3..3f8aaa7b5 100644
--- a/paychmgr/cbor_gen.go
+++ b/paychmgr/cbor_gen.go
@@ -34,7 +34,7 @@ func (t *VoucherInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Proof ([]uint8) (slice)
-	if len("Proof") > cbg.MaxLength {
+	if len("Proof") > 8192 {
 		return xerrors.Errorf("Value in field \"Proof\" was too long")
 	}
 
@@ -45,7 +45,7 @@ func (t *VoucherInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Proof) > cbg.ByteArrayMaxLen {
+	if len(t.Proof) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.Proof was too long")
 	}
 
@@ -58,7 +58,7 @@ func (t *VoucherInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Voucher (paych.SignedVoucher) (struct)
-	if len("Voucher") > cbg.MaxLength {
+	if len("Voucher") > 8192 {
 		return xerrors.Errorf("Value in field \"Voucher\" was too long")
 	}
 
@@ -74,7 +74,7 @@ func (t *VoucherInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Submitted (bool) (bool)
-	if len("Submitted") > cbg.MaxLength {
+	if len("Submitted") > 8192 {
 		return xerrors.Errorf("Value in field \"Submitted\" was too long")
 	}
 
@@ -120,7 +120,7 @@ func (t *VoucherInfo) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -137,7 +137,7 @@ func (t *VoucherInfo) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.ByteArrayMaxLen {
+			if extra > 2097152 {
 				return fmt.Errorf("t.Proof: byte array too large (%d)", extra)
 			}
 			if maj != cbg.MajByteString {
@@ -212,7 +212,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Amount (big.Int) (struct)
-	if len("Amount") > cbg.MaxLength {
+	if len("Amount") > 8192 {
 		return xerrors.Errorf("Value in field \"Amount\" was too long")
 	}
 
@@ -228,7 +228,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Target (address.Address) (struct)
-	if len("Target") > cbg.MaxLength {
+	if len("Target") > 8192 {
 		return xerrors.Errorf("Value in field \"Target\" was too long")
 	}
 
@@ -244,7 +244,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Channel (address.Address) (struct)
-	if len("Channel") > cbg.MaxLength {
+	if len("Channel") > 8192 {
 		return xerrors.Errorf("Value in field \"Channel\" was too long")
 	}
 
@@ -260,7 +260,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Control (address.Address) (struct)
-	if len("Control") > cbg.MaxLength {
+	if len("Control") > 8192 {
 		return xerrors.Errorf("Value in field \"Control\" was too long")
 	}
 
@@ -276,7 +276,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.NextLane (uint64) (uint64)
-	if len("NextLane") > cbg.MaxLength {
+	if len("NextLane") > 8192 {
 		return xerrors.Errorf("Value in field \"NextLane\" was too long")
 	}
 
@@ -292,7 +292,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Settling (bool) (bool)
-	if len("Settling") > cbg.MaxLength {
+	if len("Settling") > 8192 {
 		return xerrors.Errorf("Value in field \"Settling\" was too long")
 	}
 
@@ -308,7 +308,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Vouchers ([]*paychmgr.VoucherInfo) (slice)
-	if len("Vouchers") > cbg.MaxLength {
+	if len("Vouchers") > 8192 {
 		return xerrors.Errorf("Value in field \"Vouchers\" was too long")
 	}
 
@@ -319,7 +319,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Vouchers) > cbg.MaxLength {
+	if len(t.Vouchers) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Vouchers was too long")
 	}
 
@@ -334,7 +334,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.ChannelID (string) (string)
-	if len("ChannelID") > cbg.MaxLength {
+	if len("ChannelID") > 8192 {
 		return xerrors.Errorf("Value in field \"ChannelID\" was too long")
 	}
 
@@ -345,7 +345,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.ChannelID) > cbg.MaxLength {
+	if len(t.ChannelID) > 8192 {
 		return xerrors.Errorf("Value in field t.ChannelID was too long")
 	}
 
@@ -357,7 +357,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.CreateMsg (cid.Cid) (struct)
-	if len("CreateMsg") > cbg.MaxLength {
+	if len("CreateMsg") > 8192 {
 		return xerrors.Errorf("Value in field \"CreateMsg\" was too long")
 	}
 
@@ -379,7 +379,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Direction (uint64) (uint64)
-	if len("Direction") > cbg.MaxLength {
+	if len("Direction") > 8192 {
 		return xerrors.Errorf("Value in field \"Direction\" was too long")
 	}
 
@@ -395,7 +395,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.AddFundsMsg (cid.Cid) (struct)
-	if len("AddFundsMsg") > cbg.MaxLength {
+	if len("AddFundsMsg") > 8192 {
 		return xerrors.Errorf("Value in field \"AddFundsMsg\" was too long")
 	}
 
@@ -417,7 +417,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.PendingAmount (big.Int) (struct)
-	if len("PendingAmount") > cbg.MaxLength {
+	if len("PendingAmount") > 8192 {
 		return xerrors.Errorf("Value in field \"PendingAmount\" was too long")
 	}
 
@@ -433,7 +433,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.AvailableAmount (big.Int) (struct)
-	if len("AvailableAmount") > cbg.MaxLength {
+	if len("AvailableAmount") > 8192 {
 		return xerrors.Errorf("Value in field \"AvailableAmount\" was too long")
 	}
 
@@ -449,7 +449,7 @@ func (t *ChannelInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.PendingAvailableAmount (big.Int) (struct)
-	if len("PendingAvailableAmount") > cbg.MaxLength {
+	if len("PendingAvailableAmount") > 8192 {
 		return xerrors.Errorf("Value in field \"PendingAvailableAmount\" was too long")
 	}
 
@@ -495,7 +495,7 @@ func (t *ChannelInfo) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -595,7 +595,7 @@ func (t *ChannelInfo) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.MaxLength {
+			if extra > 8192 {
 				return fmt.Errorf("t.Vouchers: array too large (%d)", extra)
 			}
 
@@ -640,7 +640,7 @@ func (t *ChannelInfo) UnmarshalCBOR(r io.Reader) (err error) {
 		case "ChannelID":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -760,7 +760,7 @@ func (t *MsgInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Err (string) (string)
-	if len("Err") > cbg.MaxLength {
+	if len("Err") > 8192 {
 		return xerrors.Errorf("Value in field \"Err\" was too long")
 	}
 
@@ -771,7 +771,7 @@ func (t *MsgInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Err) > cbg.MaxLength {
+	if len(t.Err) > 8192 {
 		return xerrors.Errorf("Value in field t.Err was too long")
 	}
 
@@ -783,7 +783,7 @@ func (t *MsgInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.MsgCid (cid.Cid) (struct)
-	if len("MsgCid") > cbg.MaxLength {
+	if len("MsgCid") > 8192 {
 		return xerrors.Errorf("Value in field \"MsgCid\" was too long")
 	}
 
@@ -799,7 +799,7 @@ func (t *MsgInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Received (bool) (bool)
-	if len("Received") > cbg.MaxLength {
+	if len("Received") > 8192 {
 		return xerrors.Errorf("Value in field \"Received\" was too long")
 	}
 
@@ -815,7 +815,7 @@ func (t *MsgInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.ChannelID (string) (string)
-	if len("ChannelID") > cbg.MaxLength {
+	if len("ChannelID") > 8192 {
 		return xerrors.Errorf("Value in field \"ChannelID\" was too long")
 	}
 
@@ -826,7 +826,7 @@ func (t *MsgInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.ChannelID) > cbg.MaxLength {
+	if len(t.ChannelID) > 8192 {
 		return xerrors.Errorf("Value in field t.ChannelID was too long")
 	}
 
@@ -868,7 +868,7 @@ func (t *MsgInfo) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -881,7 +881,7 @@ func (t *MsgInfo) UnmarshalCBOR(r io.Reader) (err error) {
 		case "Err":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -923,7 +923,7 @@ func (t *MsgInfo) UnmarshalCBOR(r io.Reader) (err error) {
 		case "ChannelID":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
diff --git a/storage/pipeline/cbor_gen.go b/storage/pipeline/cbor_gen.go
index b9c9c2a55..f32c48b4d 100644
--- a/storage/pipeline/cbor_gen.go
+++ b/storage/pipeline/cbor_gen.go
@@ -35,7 +35,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Log ([]sealing.Log) (slice)
-	if len("Log") > cbg.MaxLength {
+	if len("Log") > 8192 {
 		return xerrors.Errorf("Value in field \"Log\" was too long")
 	}
 
@@ -46,7 +46,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Log) > cbg.MaxLength {
+	if len(t.Log) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Log was too long")
 	}
 
@@ -61,7 +61,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.CommD (cid.Cid) (struct)
-	if len("CommD") > cbg.MaxLength {
+	if len("CommD") > 8192 {
 		return xerrors.Errorf("Value in field \"CommD\" was too long")
 	}
 
@@ -83,7 +83,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.CommR (cid.Cid) (struct)
-	if len("CommR") > cbg.MaxLength {
+	if len("CommR") > 8192 {
 		return xerrors.Errorf("Value in field \"CommR\" was too long")
 	}
 
@@ -105,7 +105,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Proof ([]uint8) (slice)
-	if len("Proof") > cbg.MaxLength {
+	if len("Proof") > 8192 {
 		return xerrors.Errorf("Value in field \"Proof\" was too long")
 	}
 
@@ -116,7 +116,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Proof) > cbg.ByteArrayMaxLen {
+	if len(t.Proof) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.Proof was too long")
 	}
 
@@ -129,7 +129,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.State (sealing.SectorState) (string)
-	if len("State") > cbg.MaxLength {
+	if len("State") > 8192 {
 		return xerrors.Errorf("Value in field \"State\" was too long")
 	}
 
@@ -140,7 +140,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.State) > cbg.MaxLength {
+	if len(t.State) > 8192 {
 		return xerrors.Errorf("Value in field t.State was too long")
 	}
 
@@ -152,7 +152,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Pieces ([]sealing.SafeSectorPiece) (slice)
-	if len("Pieces") > cbg.MaxLength {
+	if len("Pieces") > 8192 {
 		return xerrors.Errorf("Value in field \"Pieces\" was too long")
 	}
 
@@ -163,7 +163,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Pieces) > cbg.MaxLength {
+	if len(t.Pieces) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Pieces was too long")
 	}
 
@@ -178,7 +178,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Return (sealing.ReturnState) (string)
-	if len("Return") > cbg.MaxLength {
+	if len("Return") > 8192 {
 		return xerrors.Errorf("Value in field \"Return\" was too long")
 	}
 
@@ -189,7 +189,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Return) > cbg.MaxLength {
+	if len(t.Return) > 8192 {
 		return xerrors.Errorf("Value in field t.Return was too long")
 	}
 
@@ -201,7 +201,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.LastErr (string) (string)
-	if len("LastErr") > cbg.MaxLength {
+	if len("LastErr") > 8192 {
 		return xerrors.Errorf("Value in field \"LastErr\" was too long")
 	}
 
@@ -212,7 +212,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.LastErr) > cbg.MaxLength {
+	if len(t.LastErr) > 8192 {
 		return xerrors.Errorf("Value in field t.LastErr was too long")
 	}
 
@@ -224,7 +224,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.CCPieces ([]sealing.SafeSectorPiece) (slice)
-	if len("CCPieces") > cbg.MaxLength {
+	if len("CCPieces") > 8192 {
 		return xerrors.Errorf("Value in field \"CCPieces\" was too long")
 	}
 
@@ -235,7 +235,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.CCPieces) > cbg.MaxLength {
+	if len(t.CCPieces) > 8192 {
 		return xerrors.Errorf("Slice value in field t.CCPieces was too long")
 	}
 
@@ -250,7 +250,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.CCUpdate (bool) (bool)
-	if len("CCUpdate") > cbg.MaxLength {
+	if len("CCUpdate") > 8192 {
 		return xerrors.Errorf("Value in field \"CCUpdate\" was too long")
 	}
 
@@ -266,7 +266,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.SeedEpoch (abi.ChainEpoch) (int64)
-	if len("SeedEpoch") > cbg.MaxLength {
+	if len("SeedEpoch") > 8192 {
 		return xerrors.Errorf("Value in field \"SeedEpoch\" was too long")
 	}
 
@@ -288,7 +288,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.SeedValue (abi.InteractiveSealRandomness) (slice)
-	if len("SeedValue") > cbg.MaxLength {
+	if len("SeedValue") > 8192 {
 		return xerrors.Errorf("Value in field \"SeedValue\" was too long")
 	}
 
@@ -299,7 +299,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.SeedValue) > cbg.ByteArrayMaxLen {
+	if len(t.SeedValue) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.SeedValue was too long")
 	}
 
@@ -312,7 +312,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.SectorType (abi.RegisteredSealProof) (int64)
-	if len("SectorType") > cbg.MaxLength {
+	if len("SectorType") > 8192 {
 		return xerrors.Errorf("Value in field \"SectorType\" was too long")
 	}
 
@@ -334,7 +334,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.TicketEpoch (abi.ChainEpoch) (int64)
-	if len("TicketEpoch") > cbg.MaxLength {
+	if len("TicketEpoch") > 8192 {
 		return xerrors.Errorf("Value in field \"TicketEpoch\" was too long")
 	}
 
@@ -356,7 +356,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.TicketValue (abi.SealRandomness) (slice)
-	if len("TicketValue") > cbg.MaxLength {
+	if len("TicketValue") > 8192 {
 		return xerrors.Errorf("Value in field \"TicketValue\" was too long")
 	}
 
@@ -367,7 +367,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.TicketValue) > cbg.ByteArrayMaxLen {
+	if len(t.TicketValue) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.TicketValue was too long")
 	}
 
@@ -380,7 +380,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.CreationTime (int64) (int64)
-	if len("CreationTime") > cbg.MaxLength {
+	if len("CreationTime") > 8192 {
 		return xerrors.Errorf("Value in field \"CreationTime\" was too long")
 	}
 
@@ -402,7 +402,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.SectorNumber (abi.SectorNumber) (uint64)
-	if len("SectorNumber") > cbg.MaxLength {
+	if len("SectorNumber") > 8192 {
 		return xerrors.Errorf("Value in field \"SectorNumber\" was too long")
 	}
 
@@ -418,7 +418,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.TerminatedAt (abi.ChainEpoch) (int64)
-	if len("TerminatedAt") > cbg.MaxLength {
+	if len("TerminatedAt") > 8192 {
 		return xerrors.Errorf("Value in field \"TerminatedAt\" was too long")
 	}
 
@@ -440,7 +440,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.UpdateSealed (cid.Cid) (struct)
-	if len("UpdateSealed") > cbg.MaxLength {
+	if len("UpdateSealed") > 8192 {
 		return xerrors.Errorf("Value in field \"UpdateSealed\" was too long")
 	}
 
@@ -462,7 +462,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.CommitMessage (cid.Cid) (struct)
-	if len("CommitMessage") > cbg.MaxLength {
+	if len("CommitMessage") > 8192 {
 		return xerrors.Errorf("Value in field \"CommitMessage\" was too long")
 	}
 
@@ -484,7 +484,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.InvalidProofs (uint64) (uint64)
-	if len("InvalidProofs") > cbg.MaxLength {
+	if len("InvalidProofs") > 8192 {
 		return xerrors.Errorf("Value in field \"InvalidProofs\" was too long")
 	}
 
@@ -500,7 +500,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.PreCommit1Out (storiface.PreCommit1Out) (slice)
-	if len("PreCommit1Out") > cbg.MaxLength {
+	if len("PreCommit1Out") > 8192 {
 		return xerrors.Errorf("Value in field \"PreCommit1Out\" was too long")
 	}
 
@@ -511,7 +511,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.PreCommit1Out) > cbg.ByteArrayMaxLen {
+	if len(t.PreCommit1Out) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.PreCommit1Out was too long")
 	}
 
@@ -524,7 +524,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.FaultReportMsg (cid.Cid) (struct)
-	if len("FaultReportMsg") > cbg.MaxLength {
+	if len("FaultReportMsg") > 8192 {
 		return xerrors.Errorf("Value in field \"FaultReportMsg\" was too long")
 	}
 
@@ -546,7 +546,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.UpdateUnsealed (cid.Cid) (struct)
-	if len("UpdateUnsealed") > cbg.MaxLength {
+	if len("UpdateUnsealed") > 8192 {
 		return xerrors.Errorf("Value in field \"UpdateUnsealed\" was too long")
 	}
 
@@ -568,7 +568,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.PreCommit1Fails (uint64) (uint64)
-	if len("PreCommit1Fails") > cbg.MaxLength {
+	if len("PreCommit1Fails") > 8192 {
 		return xerrors.Errorf("Value in field \"PreCommit1Fails\" was too long")
 	}
 
@@ -584,7 +584,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.PreCommit2Fails (uint64) (uint64)
-	if len("PreCommit2Fails") > cbg.MaxLength {
+	if len("PreCommit2Fails") > 8192 {
 		return xerrors.Errorf("Value in field \"PreCommit2Fails\" was too long")
 	}
 
@@ -600,7 +600,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.PreCommitTipSet (types.TipSetKey) (struct)
-	if len("PreCommitTipSet") > cbg.MaxLength {
+	if len("PreCommitTipSet") > 8192 {
 		return xerrors.Errorf("Value in field \"PreCommitTipSet\" was too long")
 	}
 
@@ -616,7 +616,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.RemoteDataCache (storiface.SectorLocation) (struct)
-	if len("RemoteDataCache") > cbg.MaxLength {
+	if len("RemoteDataCache") > 8192 {
 		return xerrors.Errorf("Value in field \"RemoteDataCache\" was too long")
 	}
 
@@ -632,7 +632,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.PreCommitDeposit (big.Int) (struct)
-	if len("PreCommitDeposit") > cbg.MaxLength {
+	if len("PreCommitDeposit") > 8192 {
 		return xerrors.Errorf("Value in field \"PreCommitDeposit\" was too long")
 	}
 
@@ -648,7 +648,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.PreCommitMessage (cid.Cid) (struct)
-	if len("PreCommitMessage") > cbg.MaxLength {
+	if len("PreCommitMessage") > 8192 {
 		return xerrors.Errorf("Value in field \"PreCommitMessage\" was too long")
 	}
 
@@ -670,7 +670,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.RemoteDataSealed (storiface.SectorLocation) (struct)
-	if len("RemoteDataSealed") > cbg.MaxLength {
+	if len("RemoteDataSealed") > 8192 {
 		return xerrors.Errorf("Value in field \"RemoteDataSealed\" was too long")
 	}
 
@@ -686,7 +686,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.TerminateMessage (cid.Cid) (struct)
-	if len("TerminateMessage") > cbg.MaxLength {
+	if len("TerminateMessage") > 8192 {
 		return xerrors.Errorf("Value in field \"TerminateMessage\" was too long")
 	}
 
@@ -708,7 +708,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.RemoteDataUnsealed (storiface.SectorLocation) (struct)
-	if len("RemoteDataUnsealed") > cbg.MaxLength {
+	if len("RemoteDataUnsealed") > 8192 {
 		return xerrors.Errorf("Value in field \"RemoteDataUnsealed\" was too long")
 	}
 
@@ -724,7 +724,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.ReplicaUpdateProof (storiface.ReplicaUpdateProof) (slice)
-	if len("ReplicaUpdateProof") > cbg.MaxLength {
+	if len("ReplicaUpdateProof") > 8192 {
 		return xerrors.Errorf("Value in field \"ReplicaUpdateProof\" was too long")
 	}
 
@@ -735,7 +735,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.ReplicaUpdateProof) > cbg.ByteArrayMaxLen {
+	if len(t.ReplicaUpdateProof) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.ReplicaUpdateProof was too long")
 	}
 
@@ -748,7 +748,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.RemoteDataFinalized (bool) (bool)
-	if len("RemoteDataFinalized") > cbg.MaxLength {
+	if len("RemoteDataFinalized") > 8192 {
 		return xerrors.Errorf("Value in field \"RemoteDataFinalized\" was too long")
 	}
 
@@ -764,7 +764,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.ReplicaUpdateMessage (cid.Cid) (struct)
-	if len("ReplicaUpdateMessage") > cbg.MaxLength {
+	if len("ReplicaUpdateMessage") > 8192 {
 		return xerrors.Errorf("Value in field \"ReplicaUpdateMessage\" was too long")
 	}
 
@@ -786,7 +786,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.RemoteCommit1Endpoint (string) (string)
-	if len("RemoteCommit1Endpoint") > cbg.MaxLength {
+	if len("RemoteCommit1Endpoint") > 8192 {
 		return xerrors.Errorf("Value in field \"RemoteCommit1Endpoint\" was too long")
 	}
 
@@ -797,7 +797,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.RemoteCommit1Endpoint) > cbg.MaxLength {
+	if len(t.RemoteCommit1Endpoint) > 8192 {
 		return xerrors.Errorf("Value in field t.RemoteCommit1Endpoint was too long")
 	}
 
@@ -809,7 +809,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.RemoteCommit2Endpoint (string) (string)
-	if len("RemoteCommit2Endpoint") > cbg.MaxLength {
+	if len("RemoteCommit2Endpoint") > 8192 {
 		return xerrors.Errorf("Value in field \"RemoteCommit2Endpoint\" was too long")
 	}
 
@@ -820,7 +820,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.RemoteCommit2Endpoint) > cbg.MaxLength {
+	if len(t.RemoteCommit2Endpoint) > 8192 {
 		return xerrors.Errorf("Value in field t.RemoteCommit2Endpoint was too long")
 	}
 
@@ -832,7 +832,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.RemoteSealingDoneEndpoint (string) (string)
-	if len("RemoteSealingDoneEndpoint") > cbg.MaxLength {
+	if len("RemoteSealingDoneEndpoint") > 8192 {
 		return xerrors.Errorf("Value in field \"RemoteSealingDoneEndpoint\" was too long")
 	}
 
@@ -843,7 +843,7 @@ func (t *SectorInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.RemoteSealingDoneEndpoint) > cbg.MaxLength {
+	if len(t.RemoteSealingDoneEndpoint) > 8192 {
 		return xerrors.Errorf("Value in field t.RemoteSealingDoneEndpoint was too long")
 	}
 
@@ -885,7 +885,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -902,7 +902,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.MaxLength {
+			if extra > 8192 {
 				return fmt.Errorf("t.Log: array too large (%d)", extra)
 			}
 
@@ -987,7 +987,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.ByteArrayMaxLen {
+			if extra > 2097152 {
 				return fmt.Errorf("t.Proof: byte array too large (%d)", extra)
 			}
 			if maj != cbg.MajByteString {
@@ -1006,7 +1006,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 		case "State":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -1021,7 +1021,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.MaxLength {
+			if extra > 8192 {
 				return fmt.Errorf("t.Pieces: array too large (%d)", extra)
 			}
 
@@ -1056,7 +1056,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 		case "Return":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -1067,7 +1067,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 		case "LastErr":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -1082,7 +1082,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.MaxLength {
+			if extra > 8192 {
 				return fmt.Errorf("t.CCPieces: array too large (%d)", extra)
 			}
 
@@ -1135,10 +1135,10 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 		case "SeedEpoch":
 			{
 				maj, extra, err := cr.ReadHeader()
-				var extraI int64
 				if err != nil {
 					return err
 				}
+				var extraI int64
 				switch maj {
 				case cbg.MajUnsignedInt:
 					extraI = int64(extra)
@@ -1165,7 +1165,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.ByteArrayMaxLen {
+			if extra > 2097152 {
 				return fmt.Errorf("t.SeedValue: byte array too large (%d)", extra)
 			}
 			if maj != cbg.MajByteString {
@@ -1184,10 +1184,10 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 		case "SectorType":
 			{
 				maj, extra, err := cr.ReadHeader()
-				var extraI int64
 				if err != nil {
 					return err
 				}
+				var extraI int64
 				switch maj {
 				case cbg.MajUnsignedInt:
 					extraI = int64(extra)
@@ -1210,10 +1210,10 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 		case "TicketEpoch":
 			{
 				maj, extra, err := cr.ReadHeader()
-				var extraI int64
 				if err != nil {
 					return err
 				}
+				var extraI int64
 				switch maj {
 				case cbg.MajUnsignedInt:
 					extraI = int64(extra)
@@ -1240,7 +1240,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.ByteArrayMaxLen {
+			if extra > 2097152 {
 				return fmt.Errorf("t.TicketValue: byte array too large (%d)", extra)
 			}
 			if maj != cbg.MajByteString {
@@ -1259,10 +1259,10 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 		case "CreationTime":
 			{
 				maj, extra, err := cr.ReadHeader()
-				var extraI int64
 				if err != nil {
 					return err
 				}
+				var extraI int64
 				switch maj {
 				case cbg.MajUnsignedInt:
 					extraI = int64(extra)
@@ -1300,10 +1300,10 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 		case "TerminatedAt":
 			{
 				maj, extra, err := cr.ReadHeader()
-				var extraI int64
 				if err != nil {
 					return err
 				}
+				var extraI int64
 				switch maj {
 				case cbg.MajUnsignedInt:
 					extraI = int64(extra)
@@ -1391,7 +1391,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.ByteArrayMaxLen {
+			if extra > 2097152 {
 				return fmt.Errorf("t.PreCommit1Out: byte array too large (%d)", extra)
 			}
 			if maj != cbg.MajByteString {
@@ -1616,7 +1616,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.ByteArrayMaxLen {
+			if extra > 2097152 {
 				return fmt.Errorf("t.ReplicaUpdateProof: byte array too large (%d)", extra)
 			}
 			if maj != cbg.MajByteString {
@@ -1676,7 +1676,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 		case "RemoteCommit1Endpoint":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -1687,7 +1687,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 		case "RemoteCommit2Endpoint":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -1698,7 +1698,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) (err error) {
 		case "RemoteSealingDoneEndpoint":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -1727,7 +1727,7 @@ func (t *Log) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Kind (string) (string)
-	if len("Kind") > cbg.MaxLength {
+	if len("Kind") > 8192 {
 		return xerrors.Errorf("Value in field \"Kind\" was too long")
 	}
 
@@ -1738,7 +1738,7 @@ func (t *Log) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Kind) > cbg.MaxLength {
+	if len(t.Kind) > 8192 {
 		return xerrors.Errorf("Value in field t.Kind was too long")
 	}
 
@@ -1750,7 +1750,7 @@ func (t *Log) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Trace (string) (string)
-	if len("Trace") > cbg.MaxLength {
+	if len("Trace") > 8192 {
 		return xerrors.Errorf("Value in field \"Trace\" was too long")
 	}
 
@@ -1761,7 +1761,7 @@ func (t *Log) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Trace) > cbg.MaxLength {
+	if len(t.Trace) > 8192 {
 		return xerrors.Errorf("Value in field t.Trace was too long")
 	}
 
@@ -1773,7 +1773,7 @@ func (t *Log) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Message (string) (string)
-	if len("Message") > cbg.MaxLength {
+	if len("Message") > 8192 {
 		return xerrors.Errorf("Value in field \"Message\" was too long")
 	}
 
@@ -1784,7 +1784,7 @@ func (t *Log) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Message) > cbg.MaxLength {
+	if len(t.Message) > 8192 {
 		return xerrors.Errorf("Value in field t.Message was too long")
 	}
 
@@ -1796,7 +1796,7 @@ func (t *Log) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Timestamp (uint64) (uint64)
-	if len("Timestamp") > cbg.MaxLength {
+	if len("Timestamp") > 8192 {
 		return xerrors.Errorf("Value in field \"Timestamp\" was too long")
 	}
 
@@ -1843,7 +1843,7 @@ func (t *Log) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -1856,7 +1856,7 @@ func (t *Log) UnmarshalCBOR(r io.Reader) (err error) {
 		case "Kind":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -1867,7 +1867,7 @@ func (t *Log) UnmarshalCBOR(r io.Reader) (err error) {
 		case "Trace":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -1878,7 +1878,7 @@ func (t *Log) UnmarshalCBOR(r io.Reader) (err error) {
 		case "Message":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
diff --git a/storage/pipeline/commit_batch.go b/storage/pipeline/commit_batch.go
index cd770c265..096f27e4c 100644
--- a/storage/pipeline/commit_batch.go
+++ b/storage/pipeline/commit_batch.go
@@ -382,15 +382,14 @@ func (b *CommitBatcher) processBatchV2(cfg sealiface.Config, sectors []abi.Secto
 
 	needFunds := collateral
 
-	arp, err := b.aggregateProofType(nv)
-	if err != nil {
-		res.Error = err.Error()
-		return []sealiface.CommitBatchRes{res}, xerrors.Errorf("getting aggregate proof type: %w", err)
-	}
-	params.AggregateProofType = arp
-
 	if aggregate {
 		params.SectorProofs = nil // can't be set when aggregating
+		arp, err := b.aggregateProofType(nv)
+		if err != nil {
+			res.Error = err.Error()
+			return []sealiface.CommitBatchRes{res}, xerrors.Errorf("getting aggregate proof type: %w", err)
+		}
+		params.AggregateProofType = &arp
 
 		mid, err := address.IDFromAddress(b.maddr)
 		if err != nil {
diff --git a/storage/pipeline/piece/cbor_gen.go b/storage/pipeline/piece/cbor_gen.go
index ea085becc..ccf44e54b 100644
--- a/storage/pipeline/piece/cbor_gen.go
+++ b/storage/pipeline/piece/cbor_gen.go
@@ -35,7 +35,7 @@ func (t *PieceDealInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.DealID (abi.DealID) (uint64)
-	if len("DealID") > cbg.MaxLength {
+	if len("DealID") > 8192 {
 		return xerrors.Errorf("Value in field \"DealID\" was too long")
 	}
 
@@ -51,7 +51,7 @@ func (t *PieceDealInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.PublishCid (cid.Cid) (struct)
-	if len("PublishCid") > cbg.MaxLength {
+	if len("PublishCid") > 8192 {
 		return xerrors.Errorf("Value in field \"PublishCid\" was too long")
 	}
 
@@ -73,7 +73,7 @@ func (t *PieceDealInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.DealProposal (market.DealProposal) (struct)
-	if len("DealProposal") > cbg.MaxLength {
+	if len("DealProposal") > 8192 {
 		return xerrors.Errorf("Value in field \"DealProposal\" was too long")
 	}
 
@@ -89,7 +89,7 @@ func (t *PieceDealInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.DealSchedule (piece.DealSchedule) (struct)
-	if len("DealSchedule") > cbg.MaxLength {
+	if len("DealSchedule") > 8192 {
 		return xerrors.Errorf("Value in field \"DealSchedule\" was too long")
 	}
 
@@ -105,7 +105,7 @@ func (t *PieceDealInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.KeepUnsealed (bool) (bool)
-	if len("KeepUnsealed") > cbg.MaxLength {
+	if len("KeepUnsealed") > 8192 {
 		return xerrors.Errorf("Value in field \"KeepUnsealed\" was too long")
 	}
 
@@ -121,7 +121,7 @@ func (t *PieceDealInfo) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.PieceActivationManifest (miner.PieceActivationManifest) (struct)
-	if len("PieceActivationManifest") > cbg.MaxLength {
+	if len("PieceActivationManifest") > 8192 {
 		return xerrors.Errorf("Value in field \"PieceActivationManifest\" was too long")
 	}
 
@@ -167,7 +167,7 @@ func (t *PieceDealInfo) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -304,7 +304,7 @@ func (t *DealSchedule) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.EndEpoch (abi.ChainEpoch) (int64)
-	if len("EndEpoch") > cbg.MaxLength {
+	if len("EndEpoch") > 8192 {
 		return xerrors.Errorf("Value in field \"EndEpoch\" was too long")
 	}
 
@@ -326,7 +326,7 @@ func (t *DealSchedule) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.StartEpoch (abi.ChainEpoch) (int64)
-	if len("StartEpoch") > cbg.MaxLength {
+	if len("StartEpoch") > 8192 {
 		return xerrors.Errorf("Value in field \"StartEpoch\" was too long")
 	}
 
@@ -346,6 +346,7 @@ func (t *DealSchedule) MarshalCBOR(w io.Writer) error {
 			return err
 		}
 	}
+
 	return nil
 }
 
@@ -378,7 +379,7 @@ func (t *DealSchedule) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -391,10 +392,10 @@ func (t *DealSchedule) UnmarshalCBOR(r io.Reader) (err error) {
 		case "EndEpoch":
 			{
 				maj, extra, err := cr.ReadHeader()
-				var extraI int64
 				if err != nil {
 					return err
 				}
+				var extraI int64
 				switch maj {
 				case cbg.MajUnsignedInt:
 					extraI = int64(extra)
@@ -417,10 +418,10 @@ func (t *DealSchedule) UnmarshalCBOR(r io.Reader) (err error) {
 		case "StartEpoch":
 			{
 				maj, extra, err := cr.ReadHeader()
-				var extraI int64
 				if err != nil {
 					return err
 				}
+				var extraI int64
 				switch maj {
 				case cbg.MajUnsignedInt:
 					extraI = int64(extra)
diff --git a/storage/sealer/cbor_gen.go b/storage/sealer/cbor_gen.go
index 22da1b520..e4b8e644d 100644
--- a/storage/sealer/cbor_gen.go
+++ b/storage/sealer/cbor_gen.go
@@ -33,7 +33,7 @@ func (t *Call) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.ID (storiface.CallID) (struct)
-	if len("ID") > cbg.MaxLength {
+	if len("ID") > 8192 {
 		return xerrors.Errorf("Value in field \"ID\" was too long")
 	}
 
@@ -49,7 +49,7 @@ func (t *Call) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.State (sealer.CallState) (uint64)
-	if len("State") > cbg.MaxLength {
+	if len("State") > 8192 {
 		return xerrors.Errorf("Value in field \"State\" was too long")
 	}
 
@@ -65,7 +65,7 @@ func (t *Call) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Result (sealer.ManyBytes) (struct)
-	if len("Result") > cbg.MaxLength {
+	if len("Result") > 8192 {
 		return xerrors.Errorf("Value in field \"Result\" was too long")
 	}
 
@@ -81,7 +81,7 @@ func (t *Call) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.RetType (sealer.ReturnType) (string)
-	if len("RetType") > cbg.MaxLength {
+	if len("RetType") > 8192 {
 		return xerrors.Errorf("Value in field \"RetType\" was too long")
 	}
 
@@ -92,7 +92,7 @@ func (t *Call) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.RetType) > cbg.MaxLength {
+	if len(t.RetType) > 8192 {
 		return xerrors.Errorf("Value in field t.RetType was too long")
 	}
 
@@ -134,7 +134,7 @@ func (t *Call) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -192,7 +192,7 @@ func (t *Call) UnmarshalCBOR(r io.Reader) (err error) {
 		case "RetType":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -221,7 +221,7 @@ func (t *WorkState) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.ID (sealer.WorkID) (struct)
-	if len("ID") > cbg.MaxLength {
+	if len("ID") > 8192 {
 		return xerrors.Errorf("Value in field \"ID\" was too long")
 	}
 
@@ -237,7 +237,7 @@ func (t *WorkState) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Status (sealer.WorkStatus) (string)
-	if len("Status") > cbg.MaxLength {
+	if len("Status") > 8192 {
 		return xerrors.Errorf("Value in field \"Status\" was too long")
 	}
 
@@ -248,7 +248,7 @@ func (t *WorkState) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Status) > cbg.MaxLength {
+	if len(t.Status) > 8192 {
 		return xerrors.Errorf("Value in field t.Status was too long")
 	}
 
@@ -260,7 +260,7 @@ func (t *WorkState) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.StartTime (int64) (int64)
-	if len("StartTime") > cbg.MaxLength {
+	if len("StartTime") > 8192 {
 		return xerrors.Errorf("Value in field \"StartTime\" was too long")
 	}
 
@@ -282,7 +282,7 @@ func (t *WorkState) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.WorkError (string) (string)
-	if len("WorkError") > cbg.MaxLength {
+	if len("WorkError") > 8192 {
 		return xerrors.Errorf("Value in field \"WorkError\" was too long")
 	}
 
@@ -293,7 +293,7 @@ func (t *WorkState) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.WorkError) > cbg.MaxLength {
+	if len(t.WorkError) > 8192 {
 		return xerrors.Errorf("Value in field t.WorkError was too long")
 	}
 
@@ -305,7 +305,7 @@ func (t *WorkState) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.WorkerCall (storiface.CallID) (struct)
-	if len("WorkerCall") > cbg.MaxLength {
+	if len("WorkerCall") > 8192 {
 		return xerrors.Errorf("Value in field \"WorkerCall\" was too long")
 	}
 
@@ -321,7 +321,7 @@ func (t *WorkState) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.WorkerHostname (string) (string)
-	if len("WorkerHostname") > cbg.MaxLength {
+	if len("WorkerHostname") > 8192 {
 		return xerrors.Errorf("Value in field \"WorkerHostname\" was too long")
 	}
 
@@ -332,7 +332,7 @@ func (t *WorkState) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.WorkerHostname) > cbg.MaxLength {
+	if len(t.WorkerHostname) > 8192 {
 		return xerrors.Errorf("Value in field t.WorkerHostname was too long")
 	}
 
@@ -374,7 +374,7 @@ func (t *WorkState) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -397,7 +397,7 @@ func (t *WorkState) UnmarshalCBOR(r io.Reader) (err error) {
 		case "Status":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -408,10 +408,10 @@ func (t *WorkState) UnmarshalCBOR(r io.Reader) (err error) {
 		case "StartTime":
 			{
 				maj, extra, err := cr.ReadHeader()
-				var extraI int64
 				if err != nil {
 					return err
 				}
+				var extraI int64
 				switch maj {
 				case cbg.MajUnsignedInt:
 					extraI = int64(extra)
@@ -434,7 +434,7 @@ func (t *WorkState) UnmarshalCBOR(r io.Reader) (err error) {
 		case "WorkError":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -455,7 +455,7 @@ func (t *WorkState) UnmarshalCBOR(r io.Reader) (err error) {
 		case "WorkerHostname":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -484,7 +484,7 @@ func (t *WorkID) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Method (sealtasks.TaskType) (string)
-	if len("Method") > cbg.MaxLength {
+	if len("Method") > 8192 {
 		return xerrors.Errorf("Value in field \"Method\" was too long")
 	}
 
@@ -495,7 +495,7 @@ func (t *WorkID) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Method) > cbg.MaxLength {
+	if len(t.Method) > 8192 {
 		return xerrors.Errorf("Value in field t.Method was too long")
 	}
 
@@ -507,7 +507,7 @@ func (t *WorkID) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Params (string) (string)
-	if len("Params") > cbg.MaxLength {
+	if len("Params") > 8192 {
 		return xerrors.Errorf("Value in field \"Params\" was too long")
 	}
 
@@ -518,7 +518,7 @@ func (t *WorkID) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Params) > cbg.MaxLength {
+	if len(t.Params) > 8192 {
 		return xerrors.Errorf("Value in field t.Params was too long")
 	}
 
@@ -560,7 +560,7 @@ func (t *WorkID) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -573,7 +573,7 @@ func (t *WorkID) UnmarshalCBOR(r io.Reader) (err error) {
 		case "Method":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -584,7 +584,7 @@ func (t *WorkID) UnmarshalCBOR(r io.Reader) (err error) {
 		case "Params":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
diff --git a/storage/sealer/storiface/cbor_gen.go b/storage/sealer/storiface/cbor_gen.go
index 02726b5de..79d6219eb 100644
--- a/storage/sealer/storiface/cbor_gen.go
+++ b/storage/sealer/storiface/cbor_gen.go
@@ -31,7 +31,7 @@ func (t *CallID) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.ID (uuid.UUID) (array)
-	if len("ID") > cbg.MaxLength {
+	if len("ID") > 8192 {
 		return xerrors.Errorf("Value in field \"ID\" was too long")
 	}
 
@@ -42,7 +42,7 @@ func (t *CallID) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.ID) > cbg.ByteArrayMaxLen {
+	if len(t.ID) > 2097152 {
 		return xerrors.Errorf("Byte array in field t.ID was too long")
 	}
 
@@ -55,7 +55,7 @@ func (t *CallID) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Sector (abi.SectorID) (struct)
-	if len("Sector") > cbg.MaxLength {
+	if len("Sector") > 8192 {
 		return xerrors.Errorf("Value in field \"Sector\" was too long")
 	}
 
@@ -101,7 +101,7 @@ func (t *CallID) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -118,7 +118,7 @@ func (t *CallID) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.ByteArrayMaxLen {
+			if extra > 2097152 {
 				return fmt.Errorf("t.ID: byte array too large (%d)", extra)
 			}
 			if maj != cbg.MajByteString {
@@ -164,7 +164,7 @@ func (t *SecDataHttpHeader) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Key (string) (string)
-	if len("Key") > cbg.MaxLength {
+	if len("Key") > 8192 {
 		return xerrors.Errorf("Value in field \"Key\" was too long")
 	}
 
@@ -175,7 +175,7 @@ func (t *SecDataHttpHeader) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Key) > cbg.MaxLength {
+	if len(t.Key) > 8192 {
 		return xerrors.Errorf("Value in field t.Key was too long")
 	}
 
@@ -187,7 +187,7 @@ func (t *SecDataHttpHeader) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Value (string) (string)
-	if len("Value") > cbg.MaxLength {
+	if len("Value") > 8192 {
 		return xerrors.Errorf("Value in field \"Value\" was too long")
 	}
 
@@ -198,7 +198,7 @@ func (t *SecDataHttpHeader) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Value) > cbg.MaxLength {
+	if len(t.Value) > 8192 {
 		return xerrors.Errorf("Value in field t.Value was too long")
 	}
 
@@ -240,7 +240,7 @@ func (t *SecDataHttpHeader) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -253,7 +253,7 @@ func (t *SecDataHttpHeader) UnmarshalCBOR(r io.Reader) (err error) {
 		case "Key":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -264,7 +264,7 @@ func (t *SecDataHttpHeader) UnmarshalCBOR(r io.Reader) (err error) {
 		case "Value":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -293,7 +293,7 @@ func (t *SectorLocation) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.URL (string) (string)
-	if len("URL") > cbg.MaxLength {
+	if len("URL") > 8192 {
 		return xerrors.Errorf("Value in field \"URL\" was too long")
 	}
 
@@ -304,7 +304,7 @@ func (t *SectorLocation) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.URL) > cbg.MaxLength {
+	if len(t.URL) > 8192 {
 		return xerrors.Errorf("Value in field t.URL was too long")
 	}
 
@@ -316,7 +316,7 @@ func (t *SectorLocation) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Local (bool) (bool)
-	if len("Local") > cbg.MaxLength {
+	if len("Local") > 8192 {
 		return xerrors.Errorf("Value in field \"Local\" was too long")
 	}
 
@@ -332,7 +332,7 @@ func (t *SectorLocation) MarshalCBOR(w io.Writer) error {
 	}
 
 	// t.Headers ([]storiface.SecDataHttpHeader) (slice)
-	if len("Headers") > cbg.MaxLength {
+	if len("Headers") > 8192 {
 		return xerrors.Errorf("Value in field \"Headers\" was too long")
 	}
 
@@ -343,7 +343,7 @@ func (t *SectorLocation) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if len(t.Headers) > cbg.MaxLength {
+	if len(t.Headers) > 8192 {
 		return xerrors.Errorf("Slice value in field t.Headers was too long")
 	}
 
@@ -388,7 +388,7 @@ func (t *SectorLocation) UnmarshalCBOR(r io.Reader) (err error) {
 	for i := uint64(0); i < n; i++ {
 
 		{
-			sval, err := cbg.ReadString(cr)
+			sval, err := cbg.ReadStringWithMax(cr, 8192)
 			if err != nil {
 				return err
 			}
@@ -401,7 +401,7 @@ func (t *SectorLocation) UnmarshalCBOR(r io.Reader) (err error) {
 		case "URL":
 
 			{
-				sval, err := cbg.ReadString(cr)
+				sval, err := cbg.ReadStringWithMax(cr, 8192)
 				if err != nil {
 					return err
 				}
@@ -434,7 +434,7 @@ func (t *SectorLocation) UnmarshalCBOR(r io.Reader) (err error) {
 				return err
 			}
 
-			if extra > cbg.MaxLength {
+			if extra > 8192 {
 				return fmt.Errorf("t.Headers: array too large (%d)", extra)
 			}