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  1. JBoss Marshalling
  2. JBMAR-168

Self references allow access to uninitialized data

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    • Icon: Bug Bug
    • Resolution: Won't Do
    • Icon: Major Major
    • None
    • 1.4.3.Final
    • JBoss Serialization
    • None
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      See attached.

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      See attached.
    • Workaround Exists
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      • Change the alphabetical ordering of the fields so that the members that will be referenced come before the member containing the reference
      • Make the member containing the reference transient and use a writeObject/readObject pair to ensure that it is always written last
      • Mark the serializable object as Externalizable and read/write the member containing the reference last
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      Change the alphabetical ordering of the fields so that the members that will be referenced come before the member containing the reference Make the member containing the reference transient and use a writeObject/readObject pair to ensure that it is always written last Mark the serializable object as Externalizable and read/write the member containing the reference last

      When an object being deserialized contains a self-reference (nested arbitrarily deep), the nested reference is returned as a ref to the uninitialized object.

      If this reference is used (for example is inside a container that calls equals/hashcode), it can trigger a NullPointerException, access incorrect data, etc since the object's data has not been initialized.

        1. JBMAR168-test.zip
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            dlloyd@redhat.com David Lloyd
            rhn-support-dereed Dennis Reed
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              Created:
              Updated:
              Resolved: