Coverity analysis defect 121082: Division or modulo by zero

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    • Type: Bug
    • Resolution: Fixed
    • Priority: Major - P3
    • 5.2.0-rc0
    • Affects Version/s: None
    • Component/s: None
    • Fully Compatible
    • ALL
    • QE 2021-11-15, QE 2021-11-29
    • None
    • 3
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      Division or modulo by zero

      The program will have undefined behavior, likely a crash. Division or modulo by zero results in undefined behavior.
      /src/mongo/db/query/plan_cache.h:283: DIVIDE_BY_ZERO 121082 Checking "numPartitions > 0UL" implies that "numPartitions" and "this->_numPartitions" may be up to 0 on the false branch.
      /src/mongo/db/query/plan_cache.h:284: DIVIDE_BY_ZERO 121082 In expression "cacheSize / numPartitions", division by expression "numPartitions" which may be zero has undefined behavior.

        1. Screen Shot 2021-11-04 at 10.14.18 AM.png
          Screen Shot 2021-11-04 at 10.14.18 AM.png
          59 kB

            Assignee:
            Joshua Lapacik (Inactive)
            Reporter:
            Coverity Collector User
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              Created:
              Updated:
              Resolved: