PM27331: Memory Leak Of Characters CCVT In SetupCardInoformation Method of IBMJCECCA provider

APAR status

• Closed as program error.

Error description

• The ebcdic string "CCVT" is leaked each time the method
  
  Java_com_ibm_crypto_hdwrCCA_provider_HIKM_SetupCardInformation
  
  is called inside the z/OS Java hardware cryptography provider (
  IBMJCECCA ).
  
  
  On systems where the IBMJCECCA provider is installed
  the leak may result in native memory problems. When combined
  with the Language Environment malloc header, this leak is 12
  bytes in size. In a HeapPool environment, the leak may manifest
  as large numbers of HeapPool extents for the size containing
  these entries.
  
  KEYWORDS:
  
  ibmjcecca.jar hdwrCCA SetupCardInformation java memory leak
  
  
  
  FIXED IN JAVA 6 UNDER APAR IZ95421
  

Local fix

• If the 4 byte native memory leak is affecting your system, you
  can revert to the Java software Cryptography Extension provider
  (IBMJCE).
  
  NOTE: This leak does NOT affect Java Heap storage. This is a
  leak within Language Environment heap memory.
  

Problem summary

• A 4 byte memory leak occurs in the method
  Java_com_ibm_crypto_hdwrCCA_provider_HIKM_SetupCardInformation()
  of the IBMJCECCA provider on z/OS.
  

Problem conclusion

• This defect will be fixed in:
  5.0.0 SR12 FP4
  .
  The 4 bytes of memory are no longer dynamically allocated. The
  memory leak will no longer occur.
  .
  To obtain the fix:
  Install build 20101204 or later
  

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:

  PM27347

Fix information

• Fixed component name

  JAVA 5 Z/OS 31

• Fixed component ID

  620500105

Applicable component levels

• R500 PSN

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