OSV-2021-1199 Heap-use-after-free in i_zval_ptr_dtor

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=38001 Crash type: Heap-use-after-free READ 1 Crash state: izvalptrdtor concatfunction zendbinaryop...

php:php-fuzz-execute: Heap-use-after-free in i_zval_ptr_dtor

Detailed Report: https://oss-fuzz.com/testcase?key=6231211115151360 Project: php Fuzzing Engine: honggfuzz Fuzz Target: php-fuzz-execute Job Type: honggfuzzasanphp Platform Id: linux Crash Type: Heap-use-after-free READ 1 Crash Address: 0xf4c0c851 Crash State: izvalptrdtor concatfunction...