unicorn/fuzz_emu_x86_64: Use-of-uninitialized-value in disas_insn

Project: https://github.com/unicorn-engine/unicorn.git Detailed report: https://oss-fuzz.com/testcase?key=5706737298964480 Project: unicorn Fuzzer: libFuzzerunicornfuzzemux8664 Fuzz target binary: fuzzemux8664 Job Type: libfuzzermsanunicorn Platform Id: linux Crash Type: Use-of-uninitialized-valu...