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  1. JDK
  2. JDK-8266626

Check that the target address of a native call is not NULL

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Details

    • Enhancement
    • Status: Resolved
    • P4
    • Resolution: Fixed
    • repo-panama
    • None
    • tools

    Description

      It's possible to pass MemoryAddress.NULL to CLinker::downcallHandle when linking, which will result in a segmentation fault when invoking the returned method handle.

      Similarly, it is possible to invoke a segmentation fault by passing NULL to a virtual native method handle.

      We can try to fail a bit faster here by checking that the target address is non-NULL before unboxing it.

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              jvernee Jorn Vernee
              jvernee Jorn Vernee
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