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Merge pull request #6991 from sfc-gh-etschannen/fix-recovery-version 

fix: when more tlogs are absent than the replication factor we would access invalid memory
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Steve Atherton 2022-04-29 14:00:15 -07:00 committed by GitHub
parent 2bcbff2809 a825eb8a8c
commit 2887429f42
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fdbserver/TagPartitionedLogSystem.actor.cpp
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@ -1908,7 +1908,7 @@ Optional<std::tuple<Version, Version, std::vector<TLogLockResult>>> TagPartition
int absent = logSet->logServers.size() - results.size();
int safe_range_begin = logSet->tLogWriteAntiQuorum;
int new_safe_range_begin = std::min(logSet->tLogWriteAntiQuorum, (int)(results.size() - 1));
int safe_range_end = logSet->tLogReplicationFactor - absent;
int safe_range_end = std::max(logSet->tLogReplicationFactor - absent, 1);
if (!lastEnd.present() || ((safe_range_end > 0) && (safe_range_end - 1 < results.size()) &&
results[safe_range_end - 1].end < lastEnd.get())) {