OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16703
Crash type: Negative-size-param Crash state: fuzz_tlv_to_string fuzz_parse_mime_tlv fuzz_add_mime_part
{ "introduced_range": "unknown:0a5d28fa2ec872de55c8d3f3b62675f17ca9cd45", "fixed_range": "0a5d28fa2ec872de55c8d3f3b62675f17ca9cd45:25f962193574e35fe638764c3afb9d25d8a9768b" }