libxml2:xml: Heap-use-after-free in xmlXPathNodeSetAdd

Project: https://gitlab.gnome.org/GNOME/libxml2.git Detailed Report: https://oss-fuzz.com/testcase?key=4766294854074368 Project: libxml2 Fuzzing Engine: libFuzzer Fuzz Target: xml Job Type: libfuzzerasanlibxml2 Platform Id: linux Crash Type: Heap-use-after-free READ 4 Crash Address: 0x60c00000124...