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triedb/pathdb: fix index out of range panic in decodeSingle #32937

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Merged
merged 1 commit into from
Oct 20, 2025
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triedb/pathdb: fix index out of range panic in decodeSingle #32937

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12 changes: 8 additions & 4 deletions triedb/pathdb/history_trienode.go
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Original file line number Diff line number Diff line change
Expand Up @@ -370,11 +370,15 @@ func decodeSingle(keySection []byte, onValue func([]byte, int, int) error) ([]st
for keyOff < keyLimit {
// Validate the key and value offsets within the single trie data chunk
if items%trienodeDataBlockRestartLen == 0 {
if keyOff != int(keyOffsets[items/trienodeDataBlockRestartLen]) {
return nil, fmt.Errorf("key offset is not matched, recorded: %d, want: %d", keyOffsets[items/trienodeDataBlockRestartLen], keyOff)
restartIndex := items / trienodeDataBlockRestartLen
if restartIndex >= len(keyOffsets) {
return nil, fmt.Errorf("restart index out of range: %d, available restarts: %d", restartIndex, len(keyOffsets))
}
if valOff != int(valOffsets[items/trienodeDataBlockRestartLen]) {
return nil, fmt.Errorf("value offset is not matched, recorded: %d, want: %d", valOffsets[items/trienodeDataBlockRestartLen], valOff)
if keyOff != int(keyOffsets[restartIndex]) {
return nil, fmt.Errorf("key offset is not matched, recorded: %d, want: %d", keyOffsets[restartIndex], keyOff)
}
if valOff != int(valOffsets[restartIndex]) {
return nil, fmt.Errorf("value offset is not matched, recorded: %d, want: %d", valOffsets[restartIndex], valOff)
}
}
// Resolve the entry from key section
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