c-blosc2:decompress_frame_fuzzer: Use-of-uninitialized-value in get_coffset

Project: https://github.com/Blosc/c-blosc2.git Detailed Report: https://oss-fuzz.com/testcase?key=4712370797871104 Project: c-blosc2 Fuzzing Engine: libFuzzer Fuzz Target: decompressframefuzzer Job Type: libfuzzermsanc-blosc2 Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Address...