[php-src] Issue #9853: Segfault in opcache during autoloading of class in destructor

Issue: https://github.com/php/php-src/issues/9853 Author: danog ### Description The following code: https://github.com/danog/dns-over-https, examples/ptr-record.php Resulted in this output: ``` [daniil@daniil-arch dns-over-https]$ php examples/ptr-record.php ---------- 8.8.8.8 ------------------------------------------------ TTL -- PTR dns.google 81881 Segmentation fault (core dumped) ``` But I expected this output instead: No segmentation fault GDB backtrace: ``` (gdb) back #0 0x0000555555846ca5 in zend_string_alloc (persistent=false, len=80) at /usr/src/debug/php-8.1.12/Zend/zend_string.h:154 #1 zend_string_init (persistent=false, len=80, str=0x7fffffff9ed0 "/home/daniil/repos/dns-over-https/vendor/amphp/http-client/src/HttpException.php") at /usr/src/debug/php-8.1.12/Zend/zend_string.h:172 #2 _php_stream_fopen (filename=<optimized out>, mode=<optimized out>, opened_path=0x7fffffffafb0, options=82048) at /usr/src/debug/php-8.1.12/main/streams/plain_wrapper.c:1145 #3 0x00005555558420f4 in _php_stream_open_wrapper_ex (path=0x7ffff4ec95c8 "/home/daniil/repos/dns-over-https/vendor/amphp/http-client/src/HttpException.php", mode=0x555556236923 "rb", options=<optimized out>, opened_path=0x7fffffffafb0, context=0x0) at /usr/src/debug/php-8.1.12/main/streams/streams.c:2081 #4 0x0000555555827304 in php_stream_open_for_zend_ex (handle=0x7fffffffb100, mode=<optimized out>) at /usr/src/debug/php-8.1.12/main/main.c:1537 #5 0x00007ffff531d4f2 in persistent_compile_file (file_handle=0x7fffffffb100, type=2) at /usr/src/debug/php-8.1.12/ext/opcache/ZendAccelerator.c:2026 #6 0x000055555585639d in compile_filename (type=<optimized out>, filename=0x7ffff4f1bc00) at /usr/src/debug/php-8.1.12/Zend/zend_language_scanner.c:707 #7 0x00005555558baf12 in zend_include_or_eval (inc_filename_zv=<optimized out>, type=2) at /usr/src/debug/php-8.1.12/Zend/zend_execute.c:4623 #8 0x00005555558f49b5 in ZEND_INCLUDE_OR_EVAL_SPEC_CV_HANDLER (execute_data=0x7ffff4e142a0) at /usr/src/debug/php-8.1.12/Zend/zend_vm_execute.h:38731 #9 0x00000000480054be in ?? () #10 0x00007ffff4e762a0 in ?? () #11 0x0000000000000001 in ?? () #12 0x0000000056603eb0 in ?? () #13 0x0000555556603b20 in __bss_start () #14 0x00007fffffffb3b0 in ?? () #15 0x0000555555904898 in execute_ex (ex=<optimized out>) at /usr/src/debug/php-8.1.12/Zend/zend_vm_execute.h:55580 #16 0x00005555558865ec in zend_call_function (fci=<optimized out>, fci_cache=<optimized out>) at /usr/src/debug/php-8.1.12/Zend/zend_execute_API.c:908 #17 0x0000555555886916 in zend_call_known_function (fn=0x43823850, object=<optimized out>, called_scope=<optimized out>, retval_ptr=<optimized out>, param_count=<optimized out>, params=<optimized out>, named_params=0x0) at /usr/src/debug/php-8.1.12/Zend/zend_execute_API.c:997 #18 0x0000555555759da9 in spl_perform_autoload (class_name=0x402cbc30, lc_name=0x402cbc70) at /usr/src/debug/php-8.1.12/ext/spl/php_spl.c:436 #19 0x00005555558870e3 in zend_lookup_class_ex (name=<optimized out>, key=0x402cbc70, flags=<optimized out>) at /usr/src/debug/php-8.1.12/Zend/zend_execute_API.c:1141 #20 0x0000555555931c3c in zend_fetch_class_by_name (fetch_type=2560, key=<optimized out>, class_name=0x402cbc30) at /usr/src/debug/php-8.1.12/Zend/zend_execute_API.c:1601 #21 zend_do_link_class (ce=0x43c12960, lc_parent_name=<optimized out>, key=0x402c9110) at /usr/src/debug/php-8.1.12/Zend/zend_inheritance.c:2715 #22 0x000055555586e820 in zend_bind_class_in_slot (class_table_slot=<optimized out>, lcname=0x43c12bd0, lc_parent_name=0x402cbc70) at /usr/src/debug/php-8.1.12/Zend/zend_compile.c:1131 #23 0x00005555558c68c9 in ZEND_DECLARE_CLASS_DELAYED_SPEC_CONST_CONST_HANDLER (execute_data=0x7ffff4e141d0) at /usr/src/debug/php-8.1.12/Zend/zend_vm_execute.h:7396 #24 0x0000555555904898 in execute_ex (ex=<optimized out>) at /usr/src/debug/php-8.1.12/Zend/zend_vm_execute.h:55580 #25 0x00005555558865ec in zend_call_function (fci=<optimized out>, fci_cache=<optimized out>) at /usr/src/debug/php-8.1.12/Zend/zend_execute_API.c:908 #26 0x0000555555886916 in zend_call_known_function (fn=0x43823850, object=<optimized out>, called_scope=<optimized out>, retval_ptr=<optimized out>, param_count=<optimized out>, params=<optimized out>, named_params=0x0) at /usr/src/debug/php-8.1.12/Zend/zend_execute_API.c:997 #27 0x0000555555759da9 in spl_perform_autoload (class_name=0x402c90d0, lc_name=0x402c9110) at /usr/src/debug/php-8.1.12/ext/spl/php_spl.c:436 #28 0x00005555558870e3 in zend_lookup_class_ex (name=<optimized out>, key=0x402c9110, flags=<optimized out>) at /usr/src/debug/php-8.1.12/Zend/zend_execute_API.c:1141 #29 0x00005555558ca59c in zend_fetch_class_by_name (fetch_type=512, key=<optimized out>, class_name=0x402c90d0) at /usr/src/debug/php-8.1.12/Zend/zend_execute_API.c:1601 #30 ZEND_NEW_SPEC_CONST_UNUSED_HANDLER (execute_data=0x7ffff4e14070) at /usr/src/debug/php-8.1.12/Zend/zend_vm_execute.h:10162 #31 0x0000555555904898 in execute_ex (ex=<optimized out>) at /usr/src/debug/php-8.1.12/Zend/zend_vm_execute.h:55580 #32 0x00005555558865ec in zend_call_function (fci=<optimized out>, fci_cache=<optimized out>) at /usr/src/debug/php-8.1.12/Zend/zend_execute_API.c:908 #33 0x0000555555886916 in zend_call_known_function (fn=0x43ba55d8, object=<optimized out>, called_scope=<optimized out>, retval_ptr=<optimized out>, param_count=<optimized out>, params=<optimized out>, named_params=0x0) at /usr/src/debug/php-8.1.12/Zend/zend_execute_API.c:997 #34 0x0000555555925d42 in zend_call_known_instance_method (params=0x0, param_count=0, retval_ptr=0x0, object=0x7ffff4f48980, fn=<optimized out>) at /usr/src/debug/php-8.1.12/Zend/zend_API.h:664 #35 zend_call_known_instance_method_with_0_params (retval_ptr=0x0, object=0x7ffff4f48980, fn=<optimized out>) at /usr/src/debug/php-8.1.12/Zend/zend_API.h:670 #36 zend_objects_destroy_object (object=0x7ffff4f48980) at /usr/src/debug/php-8.1.12/Zend/zend_objects.c:170 #37 0x00005555559292da in zend_objects_store_call_destructors (objects=0x555556603e68 <executor_globals+840>) at /usr/src/debug/php-8.1.12/Zend/zend_objects_API.c:59 #38 zend_objects_store_call_destructors (objects=0x555556603e68 <executor_globals+840>) at /usr/src/debug/php-8.1.12/Zend/zend_objects_API.c:43 #39 0x0000555555883a75 in shutdown_destructors () at /usr/src/debug/php-8.1.12/Zend/zend_execute_API.c:254 #40 0x0000555555893a85 in zend_call_destructors () at /usr/src/debug/php-8.1.12/Zend/zend.c:1256 #41 0x0000555555827a8c in php_request_shutdown (dummy=<optimized out>) at /usr/src/debug/php-8.1.12/main/main.c:1809 #42 0x000055555597d97c in do_cli (argc=2, argv=0x555556637740) at /usr/src/debug/php-8.1.12/sapi/cli/php_cli.c:1135 #43 0x0000555555641ee2 in main (argc=2, argv=0x555556637740) at /usr/src/debug/php-8.1.12/sapi/cli/php_cli.c:1367 ``` ### PHP Version PHP 8.1.12 ### Operating System Arch linux