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Cisco Bug: CSCvs56180 - [CUPS] egtpc_handle_user_sap_event()

Last Modified

Jun 01, 2020

Products (2)

  • Cisco ASR 5000 Series
  • Cisco ASR 5500

Known Affected Releases

21.15.23 21.16.3 21.16.c5 21.16.c5.74017 21.16.d0 21.18.0

Description (partial)

Symptom:
Crash was observed when DSREQ(SI = 1) was received and while sending the DSRSP egtpc ingress side was already cleaned up.

Conditions:
Scenario:
1. Create multipdn call first pdn is collapsed and second pdn is pure s.
2. Configure bearer inactivity in apn profile.
3. Let pure s pdn get cleared due to Bearer inactivity.
4. Hold the DSRsp from PGW(Deletion in progress due to bearer inactivity), and perform SGW HO.
5. DSRsp for DSReq(SI=1) will tried to be sent, but the egtpc s11 side(for both the pdn's) is already cleaned up as a result of this, we will see crash.
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