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Cisco Bug: CSCvv07161 - Software forced crash while trying to install route for subscriber session.

Last Modified

Oct 06, 2020

Products (1)

  • Cisco IOS

Known Affected Releases

16.9.5

Description (partial)

Symptom:
IOSd Software crashed  while trying to install route for subscriber session.
This is one time crash, RCA is done based on the available core analysis.

Observation from core is that while subscriber initiation we try to install route. while installing route it tries to access SWIDB value with is been NULL / Deleted already. 

As this set of routing function is called from SSS context , as a better coding practice called function should have extra validation to prevent such crash

Conditions:
IOS crash while trying to install route for subscriber session.
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Bug Details Include

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