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PH64603: ABEND S0C4 IN FPDISCONNECTREPLY WHEN REPLYING TO AN INVALID NETWORK REQUEST.

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APAR status

  • Closed as program error.

Error description

  • When an invalid network request is received, the log reader
rejects the request and attempts to send a response before
disconnecting. The response is built based on the request, so an
invalid size field in the request can cause fpDisconnectReply to
write to an invalid memory address.

Local fix

  • N/A

Problem summary

  • ****************************************************************
* USERS AFFECTED: CDC Replication Engine for Db2 for z/OS      *
*                 Remote Source,                               *
*                 IBM Data Replication for Db2  z/OS           *
*                 Cartridge,                                   *
*                 CDC VSAM Remote Source,                      *
*                 CDC IMS Remote Source                        *
****************************************************************
* PROBLEM DESCRIPTION: The S0C4 abend was caused by            *
*                      fpDisconnectReply writing to an         *
*                      invalid memory address.                 *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
Abend S0C4 in fpDisconnectReply when replying to an
invalid network request.

Problem conclusion

  • The log reader will not reply to an invalid network request.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PH64603
    • 

  • Reported component name
    CLASSIC FED & E
    • 

  • Reported component ID
    5697I8200
    • 

  • Reported release
    B30
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2024-12-18
    • 

  • Closed date
    2025-01-09
    • 

  • Last modified date
    2025-02-03
    • 





    

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

    • 

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

    
UI99602
    

    • 



Modules/Macros


    

  •    CECCLRSM

    



Fix information


    

  • Fixed component name
    CLASSIC FED & E
    • 

  • Fixed component ID
    5697I8200
    • 



Applicable component levels


    

  • RB30  PSY  UI99602
       UP25/01/10  P  F501
    • 



Fix is available


    

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              [{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSDP9S","label":"InfoSphere Classic Federation Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"B30","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            03 February 2025
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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