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Cisco Bug: CSCvs03936 - CUPS: Segmentation fault at vpn_deregister_user_plane

Last Modified

Sep 17, 2020

Products (2)

  • Cisco ASR 5000 Series
  • Cisco ASR 5500

Known Affected Releases 21.17.8 21.18.0 21.20.0

Description (partial)

Segmentation fault while de-registering user plane in CUPS

A pool is marked for deletion but holds a few used addresses, then the UP is de-registering. 
If the pool is ok to delete, then it gets deleted. When trying to release further chunks upon return to this function, it crashes while accessing this released memory.
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