php:php-fuzz-mbstring: Crash in left_adjust_char_head

Detailed Report: https://oss-fuzz.com/testcase?key=6583366850838528 Project: php Fuzzing Engine: libFuzzer Fuzz Target: php-fuzz-mbstring Job Type: libfuzzerubsanphp Platform Id: linux Crash Type: UNKNOWN READ Crash Address: 0xffffffff0358db2d Crash State: leftadjustcharhead...