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  1. Core Server
  2. SERVER-43879

OplogInterfaceLocal::next should return an owned BSON obj

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    • Type: Icon: Bug Bug
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 4.3.1, 3.4.24, 4.0.14
    • Affects Version/s: 3.4.0, 3.6.0, 4.0.0, 4.2.0
    • Component/s: Replication
    • None
    • Fully Compatible
    • ALL
    • v4.2, v4.0, v3.6, v3.4
    • Execution Team 2019-10-21

      OplogInterfaceLocal::next() returns an unowned BSONObj. This is problematic because callers in RollBackLocalOperations::onRemoteOperation() save the resulting object and call next() several times without taking ownership first. This results in a bugs where an unowned BSONObj can point to freed or overwritten memory.

            Assignee:
            louis.williams@mongodb.com Louis Williams
            Reporter:
            louis.williams@mongodb.com Louis Williams
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              Created:
              Updated:
              Resolved: