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Check snapshot staleness before diff reads #142

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Merged
YoshihitoAso merged 1 commit into from
Mar 23, 2026
Merged

Check snapshot staleness before diff reads #142

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10 changes: 10 additions & 0 deletions core/state/snapshot/difflayer.go
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Original file line number Diff line number Diff line change
Expand Up @@ -292,6 +292,11 @@ func (dl *diffLayer) AccountRLP(hash common.Hash) ([]byte, error) {
// Check the bloom filter first whether there's even a point in reaching into
// all the maps in all the layers below
dl.lock.RLock()
// Check staleness before reaching further.
if dl.Stale() {
dl.lock.RUnlock()
return nil, ErrSnapshotStale
}
hit := dl.diffed.Contains(accountBloomHasher(hash))
if !hit {
hit = dl.diffed.Contains(destructBloomHasher(hash))
Expand Down Expand Up @@ -358,6 +363,11 @@ func (dl *diffLayer) Storage(accountHash, storageHash common.Hash) ([]byte, erro
// Check the bloom filter first whether there's even a point in reaching into
// all the maps in all the layers below
dl.lock.RLock()
// Check staleness before reaching further.
if dl.Stale() {
dl.lock.RUnlock()
return nil, ErrSnapshotStale
}
hit := dl.diffed.Contains(storageBloomHasher{accountHash, storageHash})
if !hit {
hit = dl.diffed.Contains(destructBloomHasher(accountHash))
Expand Down
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