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core/vm: prevent overflow #29023 #1244

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Jul 26, 2025
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core/vm: prevent overflow #29023 #1244

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7 changes: 6 additions & 1 deletion core/vm/operations_acl.go
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Original file line number Diff line number Diff line change
Expand Up @@ -187,7 +187,12 @@ func makeCallVariantGasCallEIP2929(oldCalculator gasFunc) gasFunc {
// outside of this function, as part of the dynamic gas, and that will make it
// also become correctly reported to tracers.
contract.Gas += coldCost
return gas + coldCost, nil

var overflow bool
if gas, overflow = math.SafeAdd(gas, coldCost); overflow {
return 0, ErrGasUintOverflow
}
return gas, nil
}
}

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