xz:fuzz_encode_stream: Use-of-uninitialized-value in crc64_arch_optimized

Project: https://github.com/tukaani-project/xz.git Detailed Report: https://oss-fuzz.com/testcase?key=6606873663963136 Project: xz Fuzzing Engine: libFuzzer Fuzz Target: fuzzencodestream Job Type: libfuzzermsanxz Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Address: Crash State...