OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32604
Crash type: Segv on unknown address Crash state: dwg_free_MTEXTATTRIBUTEOBJECTCONTEXTDATA_private dwg_free_MTEXTATTRIBUTEOBJECTCONTEXTDATA dwg_free_variable_no_class
"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libredwg/OSV-2021-577.yaml"