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[2011-03-27 15:27 UTC] felipe@php.net
Description: ------------ See below. Test script: --------------- <?php $x = new AppendIterator; $x->append($x); Expected result: ---------------- No crash Actual result: -------------- SIGSEGV PatchesPull RequestsHistoryAllCommentsChangesGit/SVN commits
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Last updated: Sat Apr 19 17:01:26 2025 UTC |
This is still a thing in PHP 5.6.24: Program received signal SIGSEGV, Segmentation fault. 0x0000000000f7a8d4 in zend_parse_parameters (num_args=0, type_spec=0x166342f "") at /home/geeknik/php-5.6.24/Zend/zend_API.c:917 917 { (gdb) bt #0 0x0000000000f7a8d4 in zend_parse_parameters (num_args=0, type_spec=0x166342f "") at /home/geeknik/php-5.6.24/Zend/zend_API.c:917 #1 0x00007fffff7ff348 in ?? () #2 0x00007ffff7fcb910 in ?? () #3 0x0000000000000000 in ?? () (gdb) list 912 return retval; 913 } 914 /* }}} */ 915 916 ZEND_API int zend_parse_parameters(int num_args TSRMLS_DC, const char *type_spec, ...) /* {{{ */ 917 { 918 va_list va; 919 int retval; 920 921 RETURN_IF_ZERO_ARGS(num_args, type_spec, 0); valgrind -q ~/php-5.6.24/sapi/cli/php 10.php ==117124== Conditional jump or move depends on uninitialised value(s) ==117124== at 0x1031834: zend_std_get_method (zend_object_handlers.c:1114) ==117124== by 0xA0B820: spl_dual_it_get_method (spl_iterators.c:1357) ==117124== by 0x10A5598: ZEND_INIT_METHOD_CALL_SPEC_CV_CONST_HANDLER (zend_vm_execute.h:33443) ==117124== by 0x1071B29: execute_ex (zend_vm_execute.h:363) ==117124== by 0xF4DE44: zend_execute_scripts (zend.c:1341) ==117124== by 0xD12DBF: php_execute_script (main.c:2613) ==117124== by 0x12A0B38: do_cli (php_cli.c:994) ==117124== by 0x429380: main (php_cli.c:1378) ==117124== ==117124== Stack overflow in thread 1: can't grow stack to 0xffe801f68 ==117124== ==117124== Process terminating with default action of signal 11 (SIGSEGV) ==117124== Access not within mapped region at address 0xFFE801F68 ==117124== at 0xED568C: zend_call_function (zend_execute_API.c:638) ==117124== If you believe this happened as a result of a stack ==117124== overflow in your program's main thread (unlikely but ==117124== possible), you can try to increase the size of the ==117124== main thread stack using the --main-stacksize= flag. ==117124== The main thread stack size used in this run was 8388608. ==117124== Stack overflow in thread 1: can't grow stack to 0xffe801f60 ==117124== ==117124== Process terminating with default action of signal 11 (SIGSEGV) ==117124== Access not within mapped region at address 0xFFE801F60 ==117124== at 0x4A236C0: _vgnU_freeres (vg_preloaded.c:58) ==117124== If you believe this happened as a result of a stack ==117124== overflow in your program's main thread (unlikely but ==117124== possible), you can try to increase the size of the ==117124== main thread stack using the --main-stacksize= flag. ==117124== The main thread stack size used in this run was 8388608. Segmentation fault