karchive:ktar_lz_fuzzer: Use-of-uninitialized-value in KTar::KTarPrivate::readRawHeader

Detailed Report: https://oss-fuzz.com/testcase?key=5368230320603136 Project: karchive Fuzzing Engine: libFuzzer Fuzz Target: ktarlzfuzzer Job Type: libfuzzermsankarchive Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Address: Crash State: KTar::KTarPrivate::readRawHeader...