harfbuzz:hb-subset-fuzzer: Use-of-uninitialized-value in iup_delta_optimize

Project: https://github.com/harfbuzz/harfbuzz.git Detailed Report: https://oss-fuzz.com/testcase?key=4688270404157440 Project: harfbuzz Fuzzing Engine: libFuzzer Fuzz Target: hb-subset-fuzzer Job Type: libfuzzermsanharfbuzz Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Address:...