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IJ53148: POTENTIAL CRASH IN BERKLEY PACKET FILTER (BPF) DRIVER APPLIES TO AIX 7200-05

 

APAR status

  • Closed as program error.

Error description

  • Data Storage Interrupt (invalid page fault) with
    following
    stack (partial):
    
    pvthread+093200 STACK:
    [0000F45C]___memmove64+00005C
    [005B85E4]_m_copym_base+000804
    [F10009D5B0486B38]bpf:process_ipv4_options+000058
    [F10009D5B0486FB8]bpf:inp_match+000178
    [F10009D5B0485644]bpf:bpf_aix_mtap+0002A4
    [00014D70].hkey_legacy_gate+00004C ()
    [F10009D5A053BC34]vioentdd:IPRA.$vioent_output_old+003034
    ...  ...  ...
    

Local fix

Problem summary

  • Random crash occured in bpf kernel extension
    

Problem conclusion

  • Adjusted the mbuf len in bpf when m_data pointer is adjusted
    

Temporary fix

Comments

APAR Information

  • APAR number

    IJ53148

  • Reported component name

    AIX V7.2

  • Reported component ID

    5765CD200

  • Reported release

    720

  • Status

    CLOSED PER

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2024-12-06

  • Closed date

    2024-12-06

  • Last modified date

    2025-12-10

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

    IJ52570

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

Fix information

  • Fixed component name

    AIX V7.2

  • Fixed component ID

    5765CD200

Applicable component levels

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SG11S","label":"AIX 7.2 HIPERS- APARs and Fixes"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]

Document Information

Modified date:
10 December 2025