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core/types: add overflow check on GasFeeCap calculation

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Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
This commit is contained in:
Csaba Kiraly 2025-08-20 11:47:06 +02:00 committed by MariusVanDerWijden
parent c42b31a1f6
commit c464cf2589
1 changed files with 4 additions and 1 deletions
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5
core/types/transaction.go
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@ -37,6 +37,7 @@ var (
ErrInvalidTxType = errors.New("transaction type not valid in this context") ErrInvalidTxType = errors.New("transaction type not valid in this context")
ErrTxTypeNotSupported = errors.New("transaction type not supported") ErrTxTypeNotSupported = errors.New("transaction type not supported")
ErrGasFeeCapTooLow = errors.New("fee cap less than base fee") ErrGasFeeCapTooLow = errors.New("fee cap less than base fee")
ErrGasFeeCapOverflow = errors.New("fee cap overflow, too large for uint256")
errShortTypedTx = errors.New("typed transaction too short") errShortTypedTx = errors.New("typed transaction too short")
errInvalidYParity = errors.New("'yParity' field must be 0 or 1") errInvalidYParity = errors.New("'yParity' field must be 0 or 1")
errVYParityMismatch = errors.New("'v' and 'yParity' fields do not match") errVYParityMismatch = errors.New("'v' and 'yParity' fields do not match")
@ -374,7 +375,9 @@ func (tx *Transaction) calcEffectiveGasTip(dst *uint256.Int, baseFee *uint256.In
} }
var err error var err error
dst.SetFromBig(tx.inner.gasFeeCap()) if dst.SetFromBig(tx.inner.gasFeeCap()) {
return ErrGasFeeCapOverflow
}
if dst.Cmp(baseFee) < 0 { if dst.Cmp(baseFee) < 0 {
err = ErrGasFeeCapTooLow err = ErrGasFeeCapTooLow
} }