IV88430: MALFORMED NETWORK PACKETS CAN CAUSE SYSTEM CRASH APPLIES TO AIX 7100-03

APAR status

• Closed as program error.

Error description

• **************************************************************
  * USERS AFFECTED:
    * Systems running the AIX 7100-03 Technology Level
    * with devices.ethernet.lnc2.rte below the 7.1.3.49 level.
    **************************************************************
    * PROBLEM DESCRIPTION:
    * Malformed network packets sent through certain adapter
    * device drivers can cause system crash.
    *
    * The crash is due to mishandling of a lock in the
    * error path dealing with the bad packet and will
    * show a stack with abend_trap() called from clock().
    **************************************************************
    * RECOMMENDATION:
    * Install APAR IV88430.
    * Prior to fix availability, an interim fix is available from
    * either
    * ftp://aix.software.ibm.com/aix/ifixes/iv88430/
    * https://aix.software.ibm.com/aix/ifixes/iv88430/
    * Installation of the ifix requires a reboot.
    **************************************************************
  

Local fix

Problem summary

•   **************************************************************
    * USERS AFFECTED:
    * Systems running the AIX 7100-03 Technology Level
    * with devices.ethernet.lnc2.rte below the 7.1.3.49 level.
    **************************************************************
    * PROBLEM DESCRIPTION:
    * Malformed network packets sent through certain adapter
    * device drivers can cause system crash.
    *
    * The crash is due to mishandling of a lock in the
    * error path dealing with the bad packet and will
    * show a stack with abend_trap() called from clock().
    **************************************************************
    * RECOMMENDATION:
    * Install APAR IV88430.
    * Prior to fix availability, an interim fix is available from
    * either
    * ftp://aix.software.ibm.com/aix/ifixes/iv88430/
    * https://aix.software.ibm.com/aix/ifixes/iv88430/
    * Installation of the ifix requires a reboot.
    **************************************************************
  

Problem conclusion

• Move the unlock part into the same block which takes the lock.
  

Temporary fix

•   *********
    * HIPER *
    *********
  

Comments

APAR Information

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

  IV85460

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

  U876079

Fix information

• Fixed component name

  AIX V7.1

• Fixed component ID

  5765H4000

Applicable component levels

• R710 PSY U876079

     UP17/02/08 I 1000 Ž