harfbuzz/hb-subset-fuzzer: Use-of-uninitialized-value in CFF::InterpEnv<CFF::Number>::fetch_op

Detailed report: https://oss-fuzz.com/testcase?key=5756332481708032 Project: harfbuzz Fuzzer: libFuzzerharfbuzzhb-subset-fuzzer Fuzz target binary: hb-subset-fuzzer Job Type: libfuzzermsanharfbuzz Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Address: Crash State:...