OSV-2021-1703 UNKNOWN in pdfi_fapi_get_gsubr

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=42485 Crash type: UNKNOWN Crash state: pdfifapigetgsubr gsfapiserializetype2font gsfapiftgetscaledfont...

ghostscript:gstoraster_fuzzer: Crash in pdfi_fapi_get_gsubr

Detailed Report: https://oss-fuzz.com/testcase?key=4628019363315712 Project: ghostscript Fuzzing Engine: libFuzzer Fuzz Target: gstorasterfuzzer Job Type: libfuzzerasanghostscript Platform Id: linux Crash Type: UNKNOWN Crash Address: 0xf92981fb0edefb0e Crash State: pdfifapigetgsubr...