[php-src] Issue #12392: Segmentation fault on SoapClient::__getTypes

Issue: https://github.com/php/php-src/issues/12392 Author: gdahlke-adv ### Description We run into a segmentation fault when calling SoapClient::__getTypes() using the WSDL listed below on PHP versions 8.2 and 8.3 (versions 7.4, 8.0 and 8.1 behave as expected, see below). Similar to the following bug (although different PHP versions are affected): https://bugs.php.net/bug.php?id=81154 The following code: ```php <?php echo 'Loading this WSDL will take some time...' . "\n"; $client = new SoapClient('https://xzufi-v2-2-0-ni.zfinder.de/?wsdl'); echo 'Client created!' . "\n"; $types = $client->__getTypes(); echo 'Got types!' . "\n"; ``` Resulted in this output: ``` Loading this WSDL will take some time... Client created! Segmentation fault ``` But we expected this output instead: ``` Loading this WSDL will take some time... Client created! Got types! ``` Tested with different PHP versions via docker: ``` # Install Soap extension: apk add libxml2-dev && docker-php-ext-install soap php:7.4-alpine - OK php:8.0-alpine - OK php:8.1-alpine - OK php:8.2-alpine - Segmentation fault php:8.3.0RC3-alpine - Segmentation fault ``` GDB Backtrace on Debian 12 (bookworm) with PHP 8.2.10 (./configure --enable-debug --enable-soap): ``` (gdb) run test.php Starting program: /php-8.2.10/sapi/cli/php test.php [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Program received signal SIGSEGV, Segmentation fault. __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:76 76 ../sysdeps/x86_64/multiarch/strlen-avx2.S: No such file or directory. (gdb) bt #0 __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:76 #1 0x0000555555849987 in smart_str_appends (dest=0x7fffffffc0d0, src=0x0) at /php-8.2.10/Zend/zend_smart_str.h:176 #2 0x000055555585e151 in type_to_string (type=0x7ffff5585f00, buf=0x7fffffffc0d0, level=0) at /php-8.2.10/ext/soap/soap.c:4321 #3 0x0000555555856b17 in zim_SoapClient___getTypes (execute_data=0x7ffff5415110, return_value=0x7ffff5415090) at /php-8.2.10/ext/soap/soap.c:2528 #4 0x0000555555abe3c7 in ZEND_DO_FCALL_SPEC_RETVAL_USED_HANDLER () at /php-8.2.10/Zend/zend_vm_execute.h:1951 #5 0x0000555555b3181f in execute_ex (ex=0x7ffff5415020) at /php-8.2.10/Zend/zend_vm_execute.h:56080 #6 0x0000555555b35f7c in zend_execute (op_array=0x7ffff5483000, return_value=0x0) at /php-8.2.10/Zend/zend_vm_execute.h:60408 #7 0x0000555555a7d956 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /php-8.2.10/Zend/zend.c:1833 #8 0x00005555559e0c92 in php_execute_script (primary_file=0x7fffffffe970) at /php-8.2.10/main/main.c:2542 #9 0x0000555555bedac1 in do_cli (argc=2, argv=0x5555568380e0) at /php-8.2.10/sapi/cli/php_cli.c:964 #10 0x0000555555bee65c in main (argc=2, argv=0x5555568380e0) at /php-8.2.10/sapi/cli/php_cli.c:1333 ``` Any help will be greatly appreciated! ### PHP Version PHP 8.2.11 ### Operating System _No response_