Detailed report: https://clusterfuzz.com/testcase?key=5673396312211456

Fuzzer: libFuzzer_sfntly_fuzzer
Fuzz target binary: sfntly_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  sfntly::BitmapGlyphInfo::offset
  sfntly::EbdtTable::Builder::Initialize
  sfntly::EbdtTable::Builder::GetGlyphBuilders
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=417039:417261

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5673396312211456

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for instructions to reproduce this bug locally.