opWriteConcernCounters can cause undefined behavior due to overflow

XMLWordPrintableJSON

    • Type: Bug
    • Resolution: Fixed
    • Priority: Major - P3
    • 3.6.12, 4.0.7, 4.1.9
    • Affects Version/s: 3.6.11, 4.0.6, 4.1.7
    • Component/s: Replication
    • None
    • Fully Compatible
    • ALL
    • v4.0, v3.6
    • Repl 2019-03-11
    • None
    • 3
    • None
    • None
    • None
    • None
    • None
    • None
    • None

      The counters in ServerWriteConcernMetrics can overflow, since they are signed integers, and they are not protected by std::atomic. We should make these counters unsigned (preferably std::uint64_t). In order to append them to a BSONObj here, we can cast them to long long.

              Assignee:
              Tess Avitabile (Inactive)
              Reporter:
              Tess Avitabile (Inactive)
              Votes:
              0 Vote for this issue
              Watchers:
              3 Start watching this issue

                Created:
                Updated:
                Resolved: