Issues

• Data races in the PFCP stack: its maps are used by the N4 receive threads and the N4 task without a lock

  openairinterface/oai-cn5g-upf#44 · Filter by author jihoon-seo opened on Oct 28, 2026

• UPF keeps the PFCP sessions of an association when the same CP function sets it up again

  bug
  openairinterface/oai-cn5g-upf#41 · Filter by author jihoon-seo opened on Oct 28, 2026

• Pre-Association Heap Overflow in the PFCP User ID IE Parser: a Wire-Supplied uint8_t Length Drives istream::read() Into an 8-Byte Array

  openairinterface/oai-cn5g-upf#36 · Filter by author hackeryounow opened on Oct 7, 2026
  2

  

• Is IPv6 notation not supported by the SDF filter?

  openairinterface/oai-cn5g-upf#26 · Filter by author s5uishida opened on Sep 22, 2026
  3

  

• [AI-SEC-VUL-OAI-CN5G-UPF]: a single unauthenticated 16-byte PFCP (N4) datagram terminates the UPF and the SMF (std::length_error escapes a pfcp_exception-only catch)

  openairinterface/oai-cn5g-upf#20 · Filter by author longx24 opened on Sep 8, 2026
  1

  

• [AI-SEC-VUL-OAI-CN5G-UPF]: a single unauthenticated 16-byte GTP-U (N3) datagram terminates the UPF process

  openairinterface/oai-cn5g-upf#19 · Filter by author longx24 opened on Sep 8, 2026
  2

  

• Repeated Session Modification exhausts XDP attachment

  bugclosed-loop-qos
  openairinterface/oai-cn5g-upf#14 · Filter by author tariromukute opened on Aug 25, 2026

• Removing a QER from a live session leaves its HTB class in place

  bugclosed-loop-qos
  openairinterface/oai-cn5g-upf#10 · Filter by author tariromukute opened on Aug 25, 2026

• An Update QER does not change the enforced rate, and fails silently

  bugclosed-loop-qos
  openairinterface/oai-cn5g-upf#9 · Filter by author tariromukute opened on Aug 25, 2026

• QoS and PFCP Session Modification defects reproduced by PR #5

  bugclosed-loop-qos
  openairinterface/oai-cn5g-upf#6 · Filter by author tariromukute opened on Aug 20, 2026
  

• Downlink PDR selection ranks by SDF specificity instead of the Precedence IE

  openairinterface/oai-cn5g-upf#4 · Filter by author tariromukute opened on Aug 5, 2026