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IV48575: BAD POLLSET ID CAN CRASH KERNEL APPLIES TO AIX 6100-07

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APAR status

  • Closed as program error.

Error description

  • Kernel crash when using a pollset API with bad ID.

Example stack trace (the pollset function could differ):

006D0960pollcache_hold+000000 (7DF243A67DF042A6 ￭??)
￭006CDE00pollset_destroy+000100 (??)
￭00003850ovlya_addr_sc_flih_main+000130 ()
￭kdb_get_virtual_memory no real storage @ FFFFFFFFFFFFA70
￭10000058C000000010000058C ()
￭kdb_read_mem no real storage @ FFFFFFFFFFF6460

Local fix

  • 



Problem summary


    

  • Kernel crash when using a pollset API with bad ID.

Example stack trace (the pollset function could differ):

006D0960 pollcache_hold+000000 (7DF243A67DF042A6  ?? )
 006CDE00 pollset_destroy+000100 (??)
 00003850 ovlya_addr_sc_flih_main+000130 ()
 kdb_get_virtual_memory  no real storage @ FFFFFFFFFFFFA70
 10000058C 000000010000058C ()
 kdb_read_mem  no real storage @ FFFFFFFFFFF6460

    



Problem conclusion


    

  • Adopt new macro to validate indirection table reference derived
from user provided pollset ID.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV48575
    • 

  • Reported component name
    AIX 610 STD EDI
    • 

  • Reported component ID
    5765G6200
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2013-09-12
    • 

  • Closed date
    2013-09-12
    • 

  • Last modified date
    2014-02-17
    • 





    

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

    
IV45260
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    AIX 610 STD EDI
    • 

  • Fixed component ID
    5765G6200
    • 



Applicable component levels


    

  • R610  PSY  U860612
       UP14/02/17  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            17 February 2014
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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