PH54601: CRASH IN DETAILEDLOG FUNCTION OF WEB SERVER PLUGIN

APAR status

• Closed as program error.

Error description

• A crash occurs in the WebSphere web server plugin.
  The crash call stack shows:
  detailedLog-websphereExecute-websphereWriteRequestReadResponse
  -websphereRequestHandler.
  Analysis shows the 3rd parameter of the detailedLog function
  has an invalid memory location.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server web server Plugin users              *
  ****************************************************************
  * PROBLEM DESCRIPTION: The web server indicates a crash        *
  *                      occurred. Crash details indicate the    *
  *                      crash occurred Plugin's detailedLog     *
  *                      function.                               *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The web server crashes in Plugin's detailedLog function due to
  an invalid memory location of the 3rd parameter passed to the
  function. Call stack indicates detailedLog was invoked by
  webSphereExecute. The issue can occur after the plugin fails
  to receive a response to a request forwarded to the WebSphere
  Application server.
  

Problem conclusion

• The plugin module closes the socket to the WebSphere
  Application Server after a request failure. Plugin attempted
  to log error information including some socket details after
  the socket was closed. If the memory is reused before the data
  is logged, a memory access violation can occur.
  
  The fix for this APAR is targeted for inclusion in fix pack
  8.5.5.24 and 9.0.5.17. For more information, see 'Recommended
  Updates for WebSphere Application Server':
  https://www.ibm.com/support/pages/node/715553
  

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:

Fix information

• Fixed component name

  WEBSPHERE APP S

• Fixed component ID

  5724J0800

Applicable component levels