IZ68810: CRASH WHILE PROCESSING APPC DATA WITH INCORRECT LENGTH

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APAR status

  • Closed as program error.

Error description

  • Crash in sna V5router64 after receiving APPC data with an
    incorrect length in the GDSID.
    

Local fix

  • contact Level/2 support for efix availability.
    

Problem summary

  • USERS AFFECTED: All.
    
    PROBLEM DESCRIPTION:
    A crash occurred in npb_protocol_error after receiving APPC data
    with an incorrect length in the GDSID variable.
    *
    CRASH INFORMATION:
    
    CPU 0 CSA F000000030017780 at time of crash, error code for
    LEDs:
    70000000
    pvthread+01ED00 STACK:
    [047EE9B0]sna_v5router64:npb_protocol_error+000164
    (F10001003635D018,
    1001000010010000,
       F10001003DA16688)
    [047F2A54]sna_v5router64:npb_check_rcv_ll+0003E8
    (F10001003635D018,
    F10001003E8E2820,
       F10001003DA16688)
    [047F15D4]sna_v5router64:npb_process_data_proc+000194
    (F10001003635D018,
    F10001003E8E2820,
       F10001003DA16688)
    [047F1E2C]sna_v5router64:npb_perform_receive_processing+000090
    (F10001003635D018, F10001003DA16688)
    [047FA280]sna_v5router64:npb_receive_and_wait_proc+0003EC
    (F100020001E92D70, F10001003635D018,
       F10001003DA16688)
    [047EE0B8]sna_v5router64:npb_ps_conv+0001BC (F100020001E92D70,
    F10001003635D018,
       F10001003DA16688)
    [047F7CAC]sna_v5router64:npm_receive_info_proc+000180
    (F100020001E92D70,
    F10001003635D018,
       F10001003DA16688)
    [047F87C0]sna_v5router64:npm_mc_receive_proc+0000CC
    (F100020001E92D70,
    F10001003635D018,
       F10001003DA16688)
    [047FE568]sna_v5router64:npm_ps_mc+000154 (F100020001E92D70,
    F10001003635D018,
       F10001003DA16688)
    [047DEED8]sna_v5router64:nps_dispatch_conv_verb+0000DC
    (F10001003635D038, F10001003635D018,
       F10001003DA16688)
    [047DF040]sna_v5router64:nps_continue_conv_queue+000088
    (F10001003635D018, F10001003635D038,
       0100000000000001, F10001003DA16688)
    [047DF35C]sna_v5router64:nps_continue_conv_verb+000088
    (F10001003635D018, F10001003DA16688)
    [047E00B8]sna_v5router64:nps_conv_verb+000468 (F100020001E92D70,
    0000000100000001,
       F100020001E92D00, F10001003DA16688)
    [047E04F4]sna_v5router64:nps_verb_router+0002D0
    (F100020001E92D00,
    F10001003DA16688)
    [04800CD4]sna_v5router64:nps_router+000070 (F100020001E92D00,
    0008000000000008,
       F10001003DA16688)
    [04775E70]sna_v5router64:nba_dispatch_input+000290
    (F10001003F426478,
    F10001003DA16688)
    [0477655C]sna_v5router64:nba_dispatch_process+0000C8
    (F10001003F426478,
    F10001003DA16688)
    [04776D68]sna_v5router64:nba_scheduler+000210 ()
    [04768628]sna_v5router64:vpr_stream_uw_drive_scheduler+000028 ()
    [04769268]sna_v5router64:vpr_stream_uw_put+00009C
    (F1000200017D9120,
    F100020001EAD600)
    *
    PROBLEM SUMMARY:
    Remote APPC application sent bad data with 0000 for the GDS
    length, the minimum is 4. The remote system also deactivated the
    session (UNBIND type normal). When the local application issued
    a RECEIVE_AND_WAIT the crash occurred when CS/AIX tried to
    handle the two errors together.
    

Problem conclusion

  • Code has been corrected to properly handle the incorrect GDS
    variable length.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ68810

  • Reported component name

    CS AIX V6.X

  • Reported component ID

    5765E5100

  • Reported release

    630

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-01-27

  • Closed date

    2010-02-22

  • Last modified date

    2010-08-06

Fix information

  • Fixed component name

    CS AIX V6.X

  • Fixed component ID

    5765E5100

Applicable component levels

  • R630 PSY

       UP

  • R631 PSY U833873

       UP10/05/19 I 1000

  • R640 PSY

       UP



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Document information


More support for:

Communications Server for AIX

Software version:

630

Reference #:

IZ68810

Modified date:

2010-08-06

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