PI88884: DFHISIS INITIALIZE_RECEIVER CHECK_RESOURCE_ACCESS/EXCEPTION NOTAUTH

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• An ECI request arrived into CICS from CTG. ISSB /AS1
  ('2901F940'x) is
  allocated. Mirror task  75835 is attached. DFHISIS
  INITIALIZE_RECEIVER
  is called to analyze the inbound message and returns OK. Then
  *EXC*
  
  
  
  CHECK_RESOURCE_ACCESS/EXCEPTION NOTAUTH happened because the
  user ID
  has no authority to use the mirror transaction. Message
  DFHXS1111 is
  issued.  DFHACP is driven which then calls DFHISIS SEND_ERROR.
  Message
  DFHIS1028 is issued, ISSB /AS1 is freed in DFHISJU
  PERFORM_COMMIT.
  Mirror task  75835 terminated.
  Another ECI request is arrived in CICS.  ISSB /AS1 is used for
  this
  task, with ISSB_IS_BLE = 2. Mirror task  75900 is attached. When
  receiving the ECI request data, ISSB_IS_BLE and ISSB_WB_BLE will
  be
  checked.  Because of the residual data in ISSB_IS_BLE, *EXC*
  INVALID_STATE happened which result in a DFHIS0002 and system
  dump.
  *
  need to be investigate
  

Local fix

• need to investigate
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Exception NOTAUTH with message          *
  *                      DFHIS0002 is issued when handling a     *
  *                      DPL request from CICS TG Client.        *
  ****************************************************************
  IPIC connection with USERAUTH(IDENTIFY) is setup between CICS
  and CICS TG. A DPL request with data size larger than 60K is
  received in CICS from CICS TG client. Task CISR is notified and
  an ISSB is obtained for this request. CISR then attaches a
  mirror task to handle this request. After initialization of the
  mirror task, a security violation is detected as the assigned
  user id has no authority to execute the mirror task. CICS then
  frees the ISSB and terminates the mirror task. However the rest
  of the data for this request is received and handled in CISR
  task which causes some fields in the freed ISSB being
  incorrectly updated. Then a new request is received, the
  updated ISSB (contains incorrect residual value) is allocated
  for this request. Therefore, this request can not be handled by
  CICS successfully which causes an exception and DFHIS0002
  message being issued.
  

Problem conclusion

• DFHISXM has been changed to receive all the data before the
  ISSB gets freed if a security violation happened.
  

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:

  UI52894 UI52895 UI52896

Modules/Macros

• DFHISXM
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R000 PSY UI52896

     UP17/12/23 P F712

• R100 PSY UI52895

     UP17/12/23 P F712

• R900 PSY UI52894

     UP17/12/27 P F712

Fix is available

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