UBSan: member access within null pointer in zend_builtin_functions.c via recursive static initialization (JIT enabled) #20918
Description
Description
The following code:
<?php
function foo($i) {
static $a = $i <= PHP_FLOAT_MAX ? foo($i + 1) : "Done $i";
}
foo(0);Resulted in this output:
/home/phpfuzz/WorkSpace/flowfusion/php-src/Zend/zend_builtin_functions.c:1963:9: runtime error: member access within null pointer of type 'const zend_op' (aka 'const struct _zend_op')
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/phpfuzz/WorkSpace/flowfusion/php-src/Zend/zend_builtin_functions.c:1963:9 in
To reproduce:
./php-src/sapi/cli/php -d "opcache.enable_cli=1" -d "opcache.jit=1254" ./test.php
Commit:
c518a6ba8bf7a3eb6551424c7ca90dfa06b01b15
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 report is automatically generated by FlowFusion
PHP Version
nightly
Operating System
No response