OSV-2020-1726 Heap-use-after-free in xmlXPathNodeSetAdd

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25536 Crash type: Heap-use-after-free READ 4 Crash state: xmlXPathNodeSetAdd xmlXPathGetElementsByIds xmlXPathIdFunction...

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...