libxml2: Use-of-uninitialized-value in xmlParsePI

Project: https://gitlab.gnome.org/GNOME/libxml2.git Detailed report: https://oss-fuzz.com/testcase?key=4556488108408832 Project: libxml2 Fuzzer: libFuzzerlibxml2xmlreadmemoryfuzzer Fuzz target binary: libxml2xmlreadmemoryfuzzer Job Type: libfuzzermsanlibxml2 Platform Id: linux Crash Type:...