php/php-fuzz-exif: Heap-buffer-overflow in _estrndup

Detailed report: https://oss-fuzz.com/testcase?key=5740255098961920 Project: php Fuzzer: libFuzzerphpphp-fuzz-exif Fuzz target binary: php-fuzz-exif Job Type: libfuzzerasanphp Platform Id: linux Crash Type: Heap-buffer-overflow READ Crash Address: 0x6120000032e0 Crash State: estrndup...