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Cisco Bug: CSCvu45092 - tcp crash @ fib_mpls_ldi_hash

Last Modified

Sep 02, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

7.1.2.FWDG

Description (partial)

Release-note

Symptom:
tcp process crashed. See backtrace in 'Problem_9.txt'.

Conditions:
1 - tcp process calling FIB API, fib_lookup_external
2 - the nexthop is SR-TE (segment routing traffic engineering)
3 - an argument to fib_mpls_ldi_hash points a mapped-memory region smaller than 656 bytes.
     if the mapped-memory is greater than 656 types, then tcp process will not crash. But the data returned are not accurate.
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