OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31479
Crash type: Global-buffer-overflow WRITE 1 Crash state: coap_pdu_parse_opt coap_pdu_parse
"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libcoap/OSV-2021-450.yaml"