PM25115: ABEND0C4 RC00000010 OR ABEND04E RC00E20005 DUE TO STORAGE OVERLAY IN CCB WHEN AUTOBIND. SMCOVERLAY 10/10/22 PTF PECHANGE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Various abends due to storage overlay in CCB when AUTOBIND
  and when access control authorization exit is used
  ABEND0C4 RC00000010 at DSN3AMGP.DSN3AUCM+0B06
  ABEND0C4 RC00000010 at DSNSLD1 .DSNSVBK +0928
  ABEND0C4 RC00000010 at DSNWVAPR.DSNWVAPR+0F18
  ABEND0C4 RC00000010 at DSNSLD1 .DSNSCON2+0A7A
  ABEND04E RC00E20005 at DSN3AUCM.DSNSVBK +0994
  ABEND04E RC00E2000E at DSN3AUCM.DSNSFBK +118A and
  other abends such as RC00E2000D at other csects are possible.
  DB2 may terminate with RC00F30408.
  The common symptom is: the thread experiencing the abend is
  the AUTBND06 service task and the storage being overlaid is in
  CCB block CCBUSER_STR for x'100' bytes.
  The access control exit can be the DB2 "Access control
  authorization exit(DSNX@XAC)" or a vendor product
  
  keywords: smcoverlay DB2STGLK/K
  

Local fix

• Rebind the invalidated or old plans before autobind or disable
  AUTOBIND, if possible
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Access control authorization exit (DSNX@XAC) *
  *                 users that have applied PK92315 and have     *
  *                 enabled package authorization caching        *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Auto bind of a plan service task        *
  *                      (AUTBND06) experienced various abends   *
  *                      such as                                 *
  *                      V8:                                     *
  *                      - ABEND0C4 RC00000011 at DSNSFBK+06B4   *
  *                      - ABEND0C4 RC00000010 at DSNSCON2+0A7A  *
  *                      V9:                                     *
  *                      - ABEND0C4 RC00000038 at DSNWVAPR+0F18  *
  *                      - ABEND0C4 RC00000010 at DSN3AUCM+0B06  *
  *                      - ABEND04E RC00E20005 at DSNSVBK+0994   *
  *                      when access control authorization exit  *
  *                      is used for authorization due to        *
  *                      storage overlay (SMCOVERLAY).           *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  With PK92315 (UK53070 V8, UK53071 V9) applied and package
  authorization cache enabled, during auto bind of a plan
  with PKLIST option specified, storage overlay occurred which
  resulted in abends with dump titles like the following:
  V8:
   SSNM,ABND=0C4-00000011,U=        ,M=(N),C=810.SMC -DSNSFBLK,
    M=DSN3AUFR,LOC=DSNSLD1 .DSNSFBK +06B4
  
   SSNM,ABND=0C4-00000010,U=SYSOPR  ,M=(N),C=810.SMC -SNSCPOL,
    M=DSNSCON2,LOC=DSNSLD1 .DSNSCON2+0A7A
  
  V9:
   SSNM,ABND=0C4-00000010,U=SYSOPR  ,M=(N),C=910.SSSC-DSN3AUTH,
    M=DSN3AUFR,LOC=DSN3AMGP.DSN3AUCM+0B06
  
   SSNM,ABND=0C4-00000038,U=SYSOPR  ,M=(N),C=910.IFC -DSNWTRC,
    M=DSNTFRCV,LOC=DSNWVAPR.DSNWVAPR+0F18
  
   SSNM,ABND=04E-00E20005,U=SYSOPR  ,M=(N),C=910.SSSC-DSN3AUTH,
    M=DSN3AUFR,LOC=DSN3AUCM.DSNSVBK +0994
  
  The use of an invalid length to copy the authorization ID
  field caused the overlay.
  

Problem conclusion

• Code has been changed to check for a valid length before copying
  the authorization ID field.
  

Temporary fix

Comments

APAR Information

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

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

  UK62793 UK62794 UK62795

Modules/Macros

• DSNXA02
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RA10 PSY UK62793

     UP10/12/21 P F012

• R810 PSY UK62794

     UP10/12/21 P F012

• R910 PSY UK62795

     UP10/12/21 P F012

Fix is available

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