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core/types: fix unmarshalling of BlobTx values (#27939)

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FromBig returns true *when overflow occurs*
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lightclient 2023-08-16 15:22:15 -06:00 committed by GitHub
parent 386cba15b5
commit a3e35414b7
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 7 deletions
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14
core/types/transaction_marshalling.go
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@ -373,20 +373,20 @@ func (tx *Transaction) UnmarshalJSON(input []byte) error {
itx.BlobHashes = dec.BlobVersionedHashes itx.BlobHashes = dec.BlobVersionedHashes
// signature R // signature R
var ok bool var overflow bool
if dec.R == nil { if dec.R == nil {
return errors.New("missing required field 'r' in transaction") return errors.New("missing required field 'r' in transaction")
} }
itx.R, ok = uint256.FromBig((*big.Int)(dec.R)) itx.R, overflow = uint256.FromBig((*big.Int)(dec.R))
if !ok { if overflow {
return errors.New("'r' value overflows uint256") return errors.New("'r' value overflows uint256")
} }
// signature S // signature S
if dec.S == nil { if dec.S == nil {
return errors.New("missing required field 's' in transaction") return errors.New("missing required field 's' in transaction")
} }
itx.S, ok = uint256.FromBig((*big.Int)(dec.S)) itx.S, overflow = uint256.FromBig((*big.Int)(dec.S))
if !ok { if overflow {
return errors.New("'s' value overflows uint256") return errors.New("'s' value overflows uint256")
} }
// signature V // signature V
@ -394,8 +394,8 @@ func (tx *Transaction) UnmarshalJSON(input []byte) error {
if err != nil { if err != nil {
return err return err
} }
itx.V, ok = uint256.FromBig(vbig) itx.V, overflow = uint256.FromBig(vbig)
if !ok { if overflow {
return errors.New("'v' value overflows uint256") return errors.New("'v' value overflows uint256")
} }
if itx.V.Sign() != 0 || itx.R.Sign() != 0 || itx.S.Sign() != 0 { if itx.V.Sign() != 0 || itx.R.Sign() != 0 || itx.S.Sign() != 0 {