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fix (NGAP): guard optional PDUSessionNAS-PDU in PDU Session Setup Request handler

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Avoid NULL dereference when AMF omits the optional pDUSessionNAS-PDU
IE in PDUSessionResourceSetupRequest.

Signed-off-by: Guido Casati <guido.casati@openairinterface.org>
This commit is contained in:
Guido Casati
2026-04-20 10:28:20 +02:00
parent 77aff40af7
commit c97820622a
1 changed files with 4 additions and 1 deletions
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5
openair3/NGAP/ngap_gNB_handlers.c
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@@ -983,7 +983,10 @@ static int ngap_gNB_handle_pdusession_setup_request(sctp_assoc_t assoc_id, uint3
// S-NSSAI
msg->pdusession[i].nssai = decode_ngap_nssai(&item_p->s_NSSAI);
msg->pdusession[i].nas_pdu = create_byte_array(item_p->pDUSessionNAS_PDU->size, item_p->pDUSessionNAS_PDU->buf);
// NAS PDU (optional)
if (item_p->pDUSessionNAS_PDU)
msg->pdusession[i].nas_pdu = create_byte_array(item_p->pDUSessionNAS_PDU->size, item_p->pDUSessionNAS_PDU->buf);
bool ret = decodePDUSessionResourceSetup(&msg->pdusession[i].pdusessionTransfer, item_p->pDUSessionResourceSetupRequestTransfer);
if (!ret) {
NGAP_ERROR("Failed to decode pDUSessionResourceSetupRequestTransfer in NG Setup Request\n");