IBM Support

IC97480: CLIENT LOAD CAN FAIL DUE TO MEMORY OVERWRITE BECAUSE OF INCORRECT INPUT PARSING

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • A client side load will send the data and some conrol
    information across to the server using the DRDA communication
    protocol.
    In very rare circumstances, it is possible that a split DRDA
    message is wrongly interpreted by the DB2 server.
    This then leads to the load code wrongly interpreting a length
    which can trigger a large memory overwrite.
    
    As the overwrite can be large in size, the EDU detecting the
    problem is likely not the one causing the problem, so a stack
    will not directly point to this problem.
    The key factor leading to this problem is that a ( large )
    client side load was happening at the time of the problem.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * all                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade the database server to v9.7 Fix Pack 10 or above.    *
    ****************************************************************
    

Problem conclusion

  • This problem was first fixed in V9.7 Fix Pack 10
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC97480

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    970

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-11-07

  • Closed date

    2014-12-08

  • Last modified date

    2014-12-08

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

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

    IT02530 IT02533

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • R970 PSN

       UP



Document information

More support for: DB2 for Linux, UNIX and Windows

Software version: 9.7

Reference #: IC97480

Modified date: 08 December 2014