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Cisco Bug: CSCvu43355 - FTD Lina traceback in datapath due to double free

Last Modified

Oct 07, 2020

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases

9.12(2.151)

Description (partial)

Symptom:
FTD Lina traceback in datapath due to double free

Additionally, the system reports the Syslog ID 419002 on ASA

Conditions:
Double free can occur when individual NIC transmit buffer is overloaded.

In this case, a routing loop caused many instances of the syslog "%FTD-4-419002: Duplicate TCP SYN from outside"  to be sent to the syslog server, which resulted in the transmit buffer overload.
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