SEGV zend_execute_API.c runtime error: member access within misaligned address 0x000000000002 for type 'const zend_op'

Description

The following code:

<?php
try {
function foo() {
foo();}
foo();
} catch (\Throwable $_ffl_e) {}

Resulted in this output:

/home/fuzz/WorkSpace/fusion-fuzz/projects/php/php-src/Zend/zend_execute_API.c:701:22: runtime error: member access within misaligned address 0x000000000002 for type 'const zend_op' (aka 'const struct _zend_op'), which requires 8 byte alignment
0x000000000002: note: pointer points here
<memory cannot be printed>
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/fuzz/WorkSpace/fusion-fuzz/projects/php/php-src/Zend/zend_execute_API.c:701:22 in 

To reproduce:

/home/fuzz/WorkSpace/fusion-fuzz/projects/php/php-src/sapi/cli/php  -d opcache.enable_cli=1 -d opcache.jit=1254 ./test.php

Commit:

fd8eaaf153f958c66068e3bc71b950ee33cb56e8

Configurations:

CC="clang-12" CXX="clang++-12" CFLAGS="-DZEND_VERIFY_TYPE_INFERENCE" CXXFLAGS="-DZEND_VERIFY_TYPE_INFERENCE" ./configure --enable-debug --enable-address-sanitizer --enable-undefined-sanitizer --enable-re2c-cgoto --enable-fpm --enable-litespeed --enable-phpdbg-debug --enable-zts --enable-bcmath --enable-calendar --enable-dba --enable-dl-test --enable-exif --enable-ftp --enable-gd --enable-gd-jis-conv --enable-mbstring --enable-pcntl --enable-shmop --enable-soap --enable-sockets --enable-sysvmsg --enable-zend-test --with-zlib --with-bz2 --with-curl --with-enchant --with-gettext --with-gmp --with-mhash --with-ldap --with-libedit --with-readline --with-snmp --with-sodium --with-xsl --with-zip --with-mysqli --with-pdo-mysql --with-pdo-pgsql --with-pgsql --with-sqlite3 --with-pdo-sqlite --with-webp --with-jpeg --with-freetype --enable-sigchild --with-readline --with-pcre-jit --with-iconv

Operating System:

Ubuntu 20.04 Host, Docker 0599jiangyc/flowfusion:latest

This bug was found by fusion-fuzz

Related: #18899

PHP Version

nightly

Operating System

No response

Start with Zend/zend_execute_API.c at line 701 and reproduce the report using the provided recursive PHP example in test.php and the listed CLI options. Trace the failing zend_op access under the supplied sanitizer configuration, then verify that running the same reproducer no longer reports the misaligned-address error.