OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17968
Crash type: UNKNOWN READ Crash state: yyparse mrb_parser_parse mrb_parse_nstring
{ "severity": "MEDIUM" }
"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/mruby/OSV-2020-447.yaml"