NULL access with preloading and INI option

[YuanchengJiang]

Description

The following code:

Resulted in this output:

/home/phpfuzz/WorkSpace/flowfusion/php-src/Zend/zend_virtual_cwd.c:1446:2: runtime error: null pointer passed as argument 2, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/phpfuzz/WorkSpace/flowfusion/php-src/Zend/zend_virtual_cwd.c:1446:2 in 

To reproduce:

./php-src/sapi/cli/php  -d "log_errors=1" -d "zend_extension=/home/phpfuzz/WorkSpace/flowfusion/php-src/modules/opcache.so" -d "opcache.enable_cli=1" -d "opcache.preload=/home/phpfuzz/WorkSpace/flowfusion/php-src/tests/fused/preload_class_alias_2.inc" -d "error_log=" -d "allow_url_include=1" ./test.php

Commit:

aa9d140a2abb5b2d795d688b6c6afe0a886640d6

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

aa9d140

Operating System

No response

[ndossche]

Needs ZTS, prolly related to the difference in construction/destruction for globals