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Cisco Bug: CSCuw26463 - Assertion Failure at Fnctn: sess/sgsn/sgsn-app/gtp_c/gtapp_enc_ie.c:2177

Last Modified

Mar 21, 2017

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

17.3.1 17.3.2 19.2.d0 19.3.5 19.3.5.64106 20.0.0 20.0.v0

Description (partial)

Symptom:
A session manager crash is observed with the following signature:

Assertion failure at sess/sgsn/sgsn-app/gtp_c/gtapp_enc_ie.c:2177
  Note: Exhausted buffer while encoding Utran Transparent Container.                                  
  Function: sn_gt_encode_utran_transparent_container_ie()

Conditions:
During the outbound srns fwd relocation request, while encoding GTPV1 PDU the received UTRAN transparent container length exceeds the allocated buffer. This results in an assertion and the crash is observed as it cannot process due to lack of sufficient buffer space.
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