libxml2:api: Heap-use-after-free in xmlGetNsListSafe

Project: https://gitlab.gnome.org/GNOME/libxml2.git Detailed Report: https://oss-fuzz.com/testcase?key=4764587222433792 Project: libxml2 Fuzzing Engine: libFuzzer Fuzz Target: api Job Type: libfuzzerasanlibxml2 Platform Id: linux Crash Type: Heap-use-after-free READ 4 Crash Address: 0x50b00000046...