Bug #67959 [Ana->Csd]: Segfault when calling phpversion('spl');

Edit report at https://bugs.php.net/bug.php?id=67959&edit=1 ID: 67959 Updated by: aharvey@php.net Reported by: arjen at react dot com Summary: Segfault when calling phpversion('spl'); -Status: Analyzed +Status: Closed Type: Bug Package: Scripting Engine problem PHP Version: master-Git-2014-09-04 (Git) -Assigned To: +Assigned To: datibbaw Block user comment: N Private report: N New Comment: Or, alternatively, it was as simple as https://github.com/php/php-src/commit/6951f8adb014f8889cd1eee387c9e8836b5e441b. Urgh, more coffee. Good work, Florian Margaine. Previous Comments: ------------------------------------------------------------------------ [2014-09-04 17:30:44] aharvey@php.net This appears to be a zpp issue: ext_name gets set to a junk pointer after zpp is called, hence the segfault. Switching phpversion to use zend_string fixes the issue, but presumably there's an underlying parameter parsing issue that needs to be dealt with. ------------------------------------------------------------------------ [2014-09-04 07:48:13] arjen at react dot com Description: ------------ Crash when calling phpversion('spl') or any other module. Test script: --------------- --TEST-- phpversion() module version test --CREDITS-- Arjen Schol arjen@react.com --FILE-- <?php var_dump(phpversion('spl')); ?> --DONE-- --EXPECT-- string(3) "0.2" Actual result: -------------- #0 0x00007ffff36e3d0a in strlen () from /usr/lib/libc.so.6 #1 0x00000000007c70dc in zend_get_module_version (module_name=0x7fff00000000 <error: Cannot access memory at address 0x7fff00000000>) at /home/arjen/phpng/php-src/Zend/zend_API.c:3611 #2 0x00000000006f706a in zif_phpversion (param_count=<optimized out>, return_value=0x7ffff0c18860) at /home/arjen/phpng/php-src/ext/standard/info.c:1200 #3 0x0000000000862cf2 in ZEND_DO_FCALL_SPEC_HANDLER (execute_data=0x7ffff0c185f0) at /home/arjen/phpng/php-src/Zend/zend_vm_execute.h:593 #4 0x00000000007ee8e0 in execute_ex (execute_data=0x7ffff0c185f0) at /home/arjen/phpng/php-src/Zend/zend_vm_execute.h:352 #5 0x00000000007ab28d in zend_call_function (fci=fci@entry=0x7fffffffa940, fci_cache=fci_cache@entry=0x7fffffffa910) at /home/arjen/phpng/php-src/Zend/zend_execute_API.c:850 #6 0x00000000007d7af7 in zend_call_method (object=object@entry=0x0, obj_ce=<optimized out>, obj_ce@entry=0x7ffff0c040e8, fn_proxy=fn_proxy@entry=0x7ffff0c04210, function_name=function_name@entry=0xcf4bf5 "__callstatic", function_name_len=function_name_len@entry=12, retval_ptr=retval_ptr@entry=0x7fffffffaa10, param_count=2, arg1=0x7fffffffa9f0, arg2=0x7fffffffaa00) at /home/arjen/phpng/php-src/Zend/zend_interfaces.c:101 #7 0x00000000007e9a13 in zend_std_callstatic_user_call (param_count=<optimized out>, return_value=0x7ffff0c14570) at /home/arjen/phpng/php-src/Zend/zend_object_handlers.c:1159 #8 0x0000000000862cf2 in ZEND_DO_FCALL_SPEC_HANDLER (execute_data=0x7ffff0c140e0) at /home/arjen/phpng/php-src/Zend/zend_vm_execute.h:593 #9 0x00000000007ee8e0 in execute_ex (execute_data=0x7ffff0c140e0) at /home/arjen/phpng/php-src/Zend/zend_vm_execute.h:352 #10 0x00000000007bd1a2 in zend_execute_scripts (type=0, type@entry=8, retval=0x18, retval@entry=0x0, file_count=-5457978, file_count@entry=3) at /home/arjen/phpng/php-src/Zend/zend.c:1317 #11 0x000000000075b071 in php_execute_script (primary_file=0x7fffffffcf60) at /home/arjen/phpng/php-src/main/main.c:2560 #12 0x0000000000866482 in do_cli (argc=0, argv=0x18) at /home/arjen/phpng/php-src/sapi/cli/php_cli.c:978 #13 0x00000000004393f7 in main (argc=0, argv=0x18) at /home/arjen/phpng/php-src/sapi/cli/php_cli.c:1356 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=67959&edit=1