IZ89620: JVM CRASHES WHILE LOADING INVALID CLASS FILE

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: A SIGSEGV is reported while loading
    invalid/corrupted class file.
    .
    Stack Trace:
    .
    

Local fix

Problem summary

  • The problem is caused by the classfile parser attempting to
    access memory past the end of the classfile due to incorrect
    handling of an invalid attribute length field.
    

Problem conclusion

  • This defect will be fixed in:
    
    6.0.0 SR10
    6.0.0 SR9 FP1
    5.0.0 SR13
    5.0.0 SR12 FP5
    1.4.2 SR13 FP9
    .
    The JVM has been updated to correctly handle the invalid length
    field by throwing a java.lang.ClassFormatError
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ89620

  • Reported component name

    JAVA 5 J9 COMMO

  • Reported component ID

    620500127

  • Reported release

    500

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-11-25

  • Closed date

    2011-02-11

  • Last modified date

    2011-07-14

  • APAR is sysrouted FROM one or more of the following:

    IZ89602

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    JAVA 5 J9 COMMO

  • Fixed component ID

    620500127

Applicable component levels

  • R500 PSY

       UP



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Document information


More support for:

Runtimes for Java Technology
Virtual Machine

Software version:

5.0

Reference #:

IZ89620

Modified date:

2011-07-14

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