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Avoid overflow when sorting missing last on epoch_millis datetime field #12676

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Mar 15, 2024
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1 change: 1 addition & 0 deletions CHANGELOG.md
Original file line number Diff line number Diff line change
Expand Up @@ -157,6 +157,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
- Fix `terms` query on `float` field when `doc_values` are turned off by reverting back to `FloatPoint` from `FloatField` ([#12499](https://github.com/opensearch-project/OpenSearch/pull/12499))
- Fix get task API does not refresh resource stats ([#11531](https://github.com/opensearch-project/OpenSearch/pull/11531))
- onShardResult and onShardFailure are executed on one shard causes opensearch jvm crashed ([#12158](https://github.com/opensearch-project/OpenSearch/pull/12158))
- Avoid overflow when sorting missing last on `epoch_millis` datetime field ([#12676](https://github.com/opensearch-project/OpenSearch/pull/12676))

### Security

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Original file line number Diff line number Diff line change
Expand Up @@ -126,7 +126,12 @@ public boolean isSupportedBy(TemporalAccessor temporal) {

@Override
public long getFrom(TemporalAccessor temporal) {
long instantSecondsInMillis = temporal.getLong(ChronoField.INSTANT_SECONDS) * 1_000;
long instantSeconds = temporal.getLong(ChronoField.INSTANT_SECONDS);
if (instantSeconds < Long.MIN_VALUE / 1000L || instantSeconds > Long.MAX_VALUE / 1000L) {
// Multiplying would yield integer overflow
return Long.MAX_VALUE;
}
long instantSecondsInMillis = instantSeconds * 1_000;
if (instantSecondsInMillis >= 0) {
if (temporal.isSupported(ChronoField.NANO_OF_SECOND)) {
return instantSecondsInMillis + (temporal.getLong(ChronoField.NANO_OF_SECOND) / 1_000_000);
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Original file line number Diff line number Diff line change
Expand Up @@ -211,6 +211,10 @@ public void testEpochMillisParser() {
assertThat(formatter.format(instant), is("-0.12345"));
assertThat(Instant.from(formatter.parse(formatter.format(instant))), is(instant));
}
{
Instant instant = Instant.ofEpochMilli(Long.MIN_VALUE);
assertThat(formatter.format(instant), is("-" + Long.MAX_VALUE)); // We actually truncate to Long.MAX_VALUE to avoid overflow
}
}

public void testInvalidEpochMilliParser() {
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