OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12595
Crash type: Bad-free Crash state: spss_varinfo_free sav_read_variable_record sav_parse_records_pass2
"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/readstat/OSV-2020-474.yaml"