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fix(statedb): revert precompileCallsCounter on journal revert #1094

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fix(statedb): revert precompileCallsCounter on journal revert #1094

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9 changes: 8 additions & 1 deletion x/vm/statedb/journal.go
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Original file line number Diff line number Diff line change
Expand Up @@ -188,6 +188,13 @@ func (pc precompileCallChange) Revert(s *StateDB) {

// Restore processed events counter
s.processedEventsCount = pc.prevProcessedEventCount

// fix: decrement the precompile calls counter so that a reverted call
// does not permanently consume a slot in the per-tx limit, preventing
// an attacker from exhausting the limit via deliberate reverts.
if s.precompileCallsCounter > 0 {
s.precompileCallsCounter--
}
}

func (pc precompileCallChange) Dirtied() *common.Address {
Expand Down Expand Up @@ -301,4 +308,4 @@ func (ch accessListAddSlotChange) Revert(s *StateDB) {

func (ch accessListAddSlotChange) Dirtied() *common.Address {
return nil
}
}