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IV62380: KSH93 SET -- CALL IN A FUNCTION CAN CORRUPT SHELL ARGUMENTS APPLIES TO AIX 7100-03

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Running the following script :
    #!/bin/ksh93
    aaaaaaaaaa()
    {
    aaa="b c"
    bbb=$(set -- $a)
    print "p1=$1"
    print $bbb | T=":" read LIST DUMB
    print "p1=$1"
    }
    aaaaaaaaaa $1
    # ./test.ksh93 param1
    p1=param1
    p1=
    ?       <<== $1 is garbaged
    
    That problem can be exhibited in several HACMP scripts
    including process_resources
    

Local fix

  • avoid using set -- in functions.
    

Problem summary

  • KSH93 SET -- CALL IN A FUNCTION CAN CORRUPT SHELL ARGUMENTS
    

Problem conclusion

  • Modified the code so as not to incorrectly de-allocate the
    memory.
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV60172
    6100-09 - use AIX APAR IV62432
    6100-09 - use AIX APAR IV62432
    7100-02 - use AIX APAR IV64160
    7100-03 - use AIX APAR IV62380
    7100-04 - use AIX APAR IV62494
    

APAR Information

  • APAR number

    IV62380

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-07-10

  • Closed date

    2014-07-10

  • Last modified date

    2016-05-11

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

    IV60172

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

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U862084

       UP14/10/29 I 1000

PTF to Fileset Mapping

[{"Business Unit":{"code":"BU009","label":"Systems - Cognitive"},"Product":{"code":"SSMV87","label":"AIX Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":""},{"Business Unit":{"code":"BU011","label":"Systems - zSystems software"},"Product":{"code":"SSMVAX","label":"AIX Express Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":""},{"Business Unit":{"code":"BU011","label":"Systems - zSystems software"},"Product":{"code":"SG11R","label":"APARs - AIX 7.1 environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":""}]

Document Information

Modified date:
11 May 2016