PM43420: ClearCase mntrpc_server does not correctly handle user elevation and demotion when checking VOB storage prior to mount

Rational ClearCase Fix Pack (7.1.2.5) for version 7.1.2
Rational ClearCase Fix Pack (8.0.0.1) for version 8.0
Rational ClearCase Fix Pack 14 (7.1.2.14) for 7.1.2
Rational ClearCase Fix Pack 11 (8.0.0.11) for 8.0
Rational ClearCase Fix Pack 12 (8.0.0.12) for 8.0
Rational ClearCase Fix Pack 15 (7.1.2.15) for 7.1.2
Rational ClearCase Fix Pack 13 (8.0.0.13) for 8.0
Rational ClearCase Fix Pack 16 (7.1.2.16) for 7.1.2
Rational ClearCase Fix Pack 17 (7.1.2.17) for 7.1.2
Rational ClearCase Fix Pack 14 (8.0.0.14) for 8.0
Rational ClearCase Fix Pack 18 (7.1.2.18) for 7.1.2
Rational ClearCase Fix Pack 15 (8.0.0.15) for 8.0
Rational ClearCase Fix Pack 19 (7.1.2.19) for 7.1.2
Rational ClearCase Fix Pack 16 (8.0.0.16) for 8.0
Rational ClearCase Fix Pack 17 (8.0.0.17) for 8.0
Rational ClearCase Fix Pack 18 (8.0.0.18) for 8.0
Rational ClearCase Fix Pack 19 (8.0.0.19) for 8.0
Rational ClearCase Fix Pack 20 (8.0.0.20) for 8.0
Rational ClearCase Fix Pack 21 (8.0.0.21) for 8.0

APAR status

• Closed as program error.

Error description

• IBM Rational ClearCase mntrpc_server does not correctly handle
  user elevation and demotion when checking VOB storage prior to
  mount.
  
  
  ClearCase 7.x
  
  
  ALL UNIX
  
  
  Problem Statement:
      root_squash and tightened security on VOB storage (770)
  force a last-ditch effort validation process to verify that the
  VOB storage exists prior to mounting the VOB. The mntrpc_server
  attempts to use the VOB Owner to verify the storage and causes
  the following:
  
  bash? cleartool mount /vob/test
  Mounting MVFS filesystem /vob/test.
  mkdir: '/vob/test': Permission denied
  mount: Mount point /vob/test does not exist.
  
  
  Workaround:  Creating the mount over point will temporarily
  work-around the issue, especially if the VOB is public
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
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  * PROBLEM DESCRIPTION:                                         *
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  * RECOMMENDATION:                                              *
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  IBM Rational ClearCase mntrpc_server does not correctly
  handle user elevation and demotion when checking VOB storage
  prior to mount.
  
  
  ClearCase 7.x
  
  
  ALL UNIX
  
  
  Problem Statement:
      root_squash and tightened security on VOB storage (770)
  force a last-ditch effort validation process to verify that
  the VOB storage exists prior to mounting the VOB. The
  mntrpc_server attempts to use the VOB Owner to verify the
  storage and causes the following:
  
  bash? cleartool mount /vob/test
  Mounting MVFS filesystem /vob/test.
  mkdir: "/vob/test": Permission denied
  mount: Mount point /vob/test does not exist.
  
  
  Workaround:  Creating the mount over point will temporarily
  work-around the issue, especially if the VOB is public
  

Problem conclusion

• A fix is available in ClearCase versions 7.1.1.8, 7.1.2.5
  and 8.0.0.1
  

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

  CLEARCASE UNIX

• Fixed component ID

  5724G2901

Applicable component levels

• R712 PSN

     UP