OSV-2022-1277 Heap-use-after-free in mk_event_timeout_destroy

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=60089 Crash type: Heap-use-after-free WRITE 8 Crash state: mkeventtimeoutdestroy flbscheddestroy flbconfigexit...