Bug #77092 [NEW]: array_diff_key() - segmentation fault

From: root4root at gmail dot com Operating system: Linux/Windows PHP version: 7.2.11 Package: opcache Bug Type: Bug Bug description:array_diff_key() - segmentation fault Description: ------------ Since PHP 7.2.0, fpm/mod_php environment. Appears only if Opcache is enabled. When we use function array_diff_key() or array_diff_assoc() inside a class method. Including or direct running file with code below leads segmentation fault. require/include mentioned code inside some user function, we have error described here: https://bugs.php.net/bug.php?id=77070 instead of segfault. Test script: --------------- <?php class AnyClassName { public function anyMethodName() { $anyArrayOne = ['foo' => 'bar', 'bar' => 'baz']; $anyArrayTwo = ['foo' => null]; //Output or variable assignment: print_r(array_diff_key($anyArrayOne, $anyArrayTwo)); //$result = []; //$result[] = array_diff_key($anyArrayOne, $anyArrayTwo); } } //EOF Actual result: -------------- #0 0xb6411bf5 in zend_parse_va_args (num_args=2, type_spec=0xb6c0cc34 "+", va=0xbfc0aee0, flags=0) at /php7.2.11/Zend/zend_API.c:920 #1 0xb6411df2 in zend_parse_parameters (num_args=2, type_spec=0xb6c0cc34 "+") at /php7.2.11/Zend/zend_API.c:990 #2 0xb6229728 in php_array_diff_key (execute_data=0xb547d000, return_value=0xbfc0b0f0, data_compare_type=-1) at /php7.2.11/ext/standard/array.c:5082 #3 0xb622ab0b in zif_array_diff_key (execute_data=0xb547d000, return_value=0xbfc0b0f0) at /php7.2.11/ext/standard/array.c:5409 #4 0xb51a4144 in ct_eval_func_call (result=0xbfc0b0f0, name=0xb546a0e0, num_args=2, args=0xbfc0b100) at /php7.2.11/ext/opcache/Optimizer/sccp.c:848 #5 0xb51a5c68 in sccp_visit_instr (scdf=0xbfc0b1b0, opline=0xb546f1e8, ssa_op=0xb548e320) at /php7.2.11/ext/opcache/Optimizer/sccp.c:1283 #6 0xb51a789a in scdf_solve (scdf=0xbfc0b1b0, name=0xb51bf95f "SCCP") at /php7.2.11/ext/opcache/Optimizer/scdf.c:167 #7 0xb51a6e9a in sccp_optimize_op_array (ctx=0xbfc0b3c8, op_array=0xb540b148, ssa=0xb548e094, call_map=0xb548e158) at /php7.2.11/ext/opcache/Optimizer/sccp.c:1673 #8 0xb517ab57 in zend_dfa_optimize_op_array (op_array=0xb540b148, ctx=0xbfc0b3c8, ssa=0xb548e094, call_map=0xb548e158) at /php7.2.11/ext/opcache/Optimizer/dfa_pass.c:567 #9 0xb5162267 in zend_optimize_script (script=0xb546f000, optimization_level=2147467263, debug_level=0) at /php7.2.11/ext/opcache/Optimizer/zend_optimizer.c:1263 #10 0xb5141b68 in cache_script_in_shared_memory (new_persistent_script=0xb546f000, key=0xb7d9bb70 "/home/pavel/bitbucket/zhostovo2/www/test.php", key_length=44, from_shared_memory=0xbfc0b47c) at /php7.2.11/ext/opcache/ZendAccelerator.c:1333 #11 0xb5143756 in persistent_compile_file (file_handle=0xbfc0d7e8, type=8) at /php7.2.11/ext/opcache/ZendAccelerator.c:1947 #12 0xb640e0b7 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /php7.2.11/Zend/zend.c:1490 #13 0xb6382fd1 in php_execute_script (primary_file=0xbfc0d7e8) at /php7.2.11/main/main.c:2590 #14 0xb64e7f7e in php_handler (r=0xb7d9a7a8) at /php7.2.11/sapi/apache2handler/sapi_apache2.c:701 #15 0xb771d364 in ap_run_handler () #16 0xb771d986 in ap_invoke_handler () #17 0xb7738572 in ap_process_async_request () #18 0xb773875b in ap_process_request () #19 0xb7733ef6 in ?? () #20 0xb7729014 in ap_run_process_connection () #21 0xb773fdb8 in ?? () #22 0xb774005b in ?? () #23 0xb77400bd in ?? () #24 0xb7740969 in ?? () #25 0xb76fb074 in ap_run_mpm () #26 0xb76f2900 in main () -- Edit bug report at https://bugs.php.net/bug.php?id=77092&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77092&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77092&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77092&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77092&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77092&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77092&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77092&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77092&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77092&r=support Expected behavior: https://bugs.php.net/fix.php?id=77092&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77092&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77092&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77092&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77092&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77092&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77092&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77092&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77092&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77092&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77092&r=mysqlcfg