OSV-2021-926 Heap-use-after-free in zend_gc_addref

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35876 Crash type: Heap-use-after-free READ 4 Crash state: zendgcaddref ZENDASSIGNOPSPECVARTMPVARHANDLER fuzzerexecuteex...

OSV-2020-1779 Heap-use-after-free in zend_gc_addref

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25697 Crash type: Heap-use-after-free READ 4 Crash state: zendgcaddref zendgeneratorupdatecurrent zendgeneratordtorstorage...