OSV-2021-417 Heap-use-after-free in __cil_verify_classperms

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31065 Crash type: Heap-use-after-free READ 8 Crash state: cilverifyclassperms cilverifyclasspermission cilpreverifyhelper...