[php-src] Issue #14712: Segmentation fault (jump to 0x0) in Zend/zend_vm_execute.h

Issue: https://github.com/php/php-src/issues/14712 Author: YuanchengJiang ### Description The following code: ```php <?php $db = new PDO('sqlite::memory:'); $x = $db->query('select 1 as queryStringxx'); $y = $x->fetch(PDO::FETCH_LAZY); $script1_dataflow = $y; $script1_dataflow->documentElement->firstChild->nextElementSibling->textContent = "é"; ``` Resulted in this output: ``` Segmentation fault (core dumped) ``` Valgrind: ``` ==3394453== Jump to the invalid address stated on the next line ==3394453== at 0x0: ??? ==3394453== by 0x9198EF: ZEND_FETCH_OBJ_W_SPEC_CV_CONST_HANDLER (zend_vm_execute.h:42165) ==3394453== by 0x939D9D: execute_ex (zend_vm_execute.h:61971) ==3394453== by 0x93AD56: zend_execute (zend_vm_execute.h:62962) ==3394453== by 0x9D180A: zend_execute_script (zend.c:1906) ==3394453== by 0x78AF30: php_execute_script_ex (main.c:2529) ==3394453== by 0x78B0B6: php_execute_script (main.c:2569) ==3394453== by 0x9D3C01: do_cli (php_cli.c:956) ==3394453== by 0x9D494F: main (php_cli.c:1330) ==3394453== Address 0x0 is not stack'd, malloc'd or (recently) free'd ``` ASan: ``` AddressSanitizer:DEADLYSIGNAL ================================================================= ==3387603==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x000000000000 bp 0x7ffe515cdc20 sp 0x7ffe515cd6b8 T0) ==3387603==Hint: pc points to the zero page. ==3387603==The signal is caused by a READ memory access. ==3387603==Hint: address points to the zero page. #0 0x0 (<unknown module>) #1 0x563474998418 in ZEND_FETCH_OBJ_W_SPEC_CV_CONST_HANDLER /php-src/Zend/zend_vm_execute.h:42165:2 #2 0x56347464d2a7 in execute_ex /php-src/Zend/zend_vm_execute.h:57310:7 #3 0x56347464e672 in zend_execute /php-src/Zend/zend_vm_execute.h:62962:2 #4 0x5634750fe018 in zend_execute_script /php-src/Zend/zend.c:1906:3 #5 0x563473d23956 in php_execute_script_ex /php-src/main/main.c:2529:13 #6 0x563473d241f8 in php_execute_script /php-src/main/main.c:2569:9 #7 0x56347510be91 in do_cli /php-src/sapi/cli/php_cli.c:956:5 #8 0x563475107872 in main /php-src/sapi/cli/php_cli.c:1330:18 #9 0x7f233fdbed8f in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16 AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV (<unknown module>) ==3387603==ABORTING ``` ### PHP Version PHP 8.4.0-dev ### Operating System ubuntu 22.04