dmitry Tue, 02 Aug 2011 07:38:23 +0000 Revision: http://svn.php.net/viewvc?view=revision&revision=314086
Log: Fixed bug #55339 (Segfault with allow_call_time_pass_reference = Off) Bug: https://bugs.php.net/55339 (Feedback) Segfault with allow_call_time_pass_reference = Off Changed paths: U php/php-src/branches/PHP_5_3/NEWS A php/php-src/branches/PHP_5_3/Zend/tests/bug55339.phpt U php/php-src/branches/PHP_5_3/Zend/zend.c U php/php-src/branches/PHP_5_4/Zend/zend.c U php/php-src/trunk/Zend/zend.c Modified: php/php-src/branches/PHP_5_3/NEWS =================================================================== --- php/php-src/branches/PHP_5_3/NEWS 2011-08-02 06:21:40 UTC (rev 314085) +++ php/php-src/branches/PHP_5_3/NEWS 2011-08-02 07:38:23 UTC (rev 314086) @@ -13,6 +13,8 @@ (Scott) - Core + . Fixed bug #55339 (Segfault with allow_call_time_pass_reference = Off). + (Dmitry) . Fix bug #55295 [NEW]: popen_ex on windows, fixed possible heap overflow (Pierre) . Fixed bug #50816 (Using class constants in array definition fails). Added: php/php-src/branches/PHP_5_3/Zend/tests/bug55339.phpt =================================================================== --- php/php-src/branches/PHP_5_3/Zend/tests/bug55339.phpt (rev 0) +++ php/php-src/branches/PHP_5_3/Zend/tests/bug55339.phpt 2011-08-02 07:38:23 UTC (rev 314086) @@ -0,0 +1,31 @@ +--TEST-- +Bug #55339 (Segfault with allow_call_time_pass_reference = Off) +--INI-- +allow_call_time_pass_reference=off +--FILE-- +<?php +function error_handler($errno, $errstr, $errfile, $errline) { + eval(';'); +} + +set_error_handler('error_handler'); + +eval(<<<'EOF' +function foo() +{ + $array = array(); + foreach ($array as $key => $value) { + bar($key, &$value); + } +} + +function bar() +{ + +} +EOF +); + +echo "OK\n"; +--EXPECT-- +OK Modified: php/php-src/branches/PHP_5_3/Zend/zend.c =================================================================== --- php/php-src/branches/PHP_5_3/Zend/zend.c 2011-08-02 06:21:40 UTC (rev 314085) +++ php/php-src/branches/PHP_5_3/Zend/zend.c 2011-08-02 07:38:23 UTC (rev 314086) @@ -958,6 +958,23 @@ } /* }}} */ +#define SAVE_STACK(stack) do { \ + if (CG(stack).top) { \ + memcpy(&stack, &CG(stack), sizeof(zend_stack)); \ + CG(stack).top = CG(stack).max = 0; \ + CG(stack).elements = NULL; \ + } else { \ + stack.top = 0; \ + } \ + } while (0) + +#define RESTORE_STACK(stack) do { \ + if (stack.top) { \ + zend_stack_destroy(&CG(stack)); \ + memcpy(&CG(stack), &stack, sizeof(zend_stack)); \ + } \ + } while (0) + ZEND_API void zend_error(int type, const char *format, ...) /* {{{ */ { va_list args; @@ -970,6 +987,14 @@ zval *orig_user_error_handler; zend_bool in_compilation; zend_class_entry *saved_class_entry; + zend_stack bp_stack; + zend_stack function_call_stack; + zend_stack switch_cond_stack; + zend_stack foreach_copy_stack; + zend_stack object_stack; + zend_stack declare_stack; + zend_stack list_stack; + zend_stack labels_stack; TSRMLS_FETCH(); /* Obtain relevant filename and lineno */ @@ -1097,6 +1122,14 @@ if (in_compilation) { saved_class_entry = CG(active_class_entry); CG(active_class_entry) = NULL; + SAVE_STACK(bp_stack); + SAVE_STACK(function_call_stack); + SAVE_STACK(switch_cond_stack); + SAVE_STACK(foreach_copy_stack); + SAVE_STACK(object_stack); + SAVE_STACK(declare_stack); + SAVE_STACK(list_stack); + SAVE_STACK(labels_stack); } if (call_user_function_ex(CG(function_table), NULL, orig_user_error_handler, &retval, 5, params, 1, NULL TSRMLS_CC) == SUCCESS) { @@ -1113,6 +1146,14 @@ if (in_compilation) { CG(active_class_entry) = saved_class_entry; + RESTORE_STACK(bp_stack); + RESTORE_STACK(function_call_stack); + RESTORE_STACK(switch_cond_stack); + RESTORE_STACK(foreach_copy_stack); + RESTORE_STACK(object_stack); + RESTORE_STACK(declare_stack); + RESTORE_STACK(list_stack); + RESTORE_STACK(labels_stack); } if (!EG(user_error_handler)) { Modified: php/php-src/branches/PHP_5_4/Zend/zend.c =================================================================== --- php/php-src/branches/PHP_5_4/Zend/zend.c 2011-08-02 06:21:40 UTC (rev 314085) +++ php/php-src/branches/PHP_5_4/Zend/zend.c 2011-08-02 07:38:23 UTC (rev 314086) @@ -975,6 +975,23 @@ } /* }}} */ +#define SAVE_STACK(stack) do { \ + if (CG(stack).top) { \ + memcpy(&stack, &CG(stack), sizeof(zend_stack)); \ + CG(stack).top = CG(stack).max = 0; \ + CG(stack).elements = NULL; \ + } else { \ + stack.top = 0; \ + } \ + } while (0) + +#define RESTORE_STACK(stack) do { \ + if (stack.top) { \ + zend_stack_destroy(&CG(stack)); \ + memcpy(&CG(stack), &stack, sizeof(zend_stack)); \ + } \ + } while (0) + ZEND_API void zend_error(int type, const char *format, ...) /* {{{ */ { va_list args; @@ -987,6 +1004,14 @@ zval *orig_user_error_handler; zend_bool in_compilation; zend_class_entry *saved_class_entry; + zend_stack bp_stack; + zend_stack function_call_stack; + zend_stack switch_cond_stack; + zend_stack foreach_copy_stack; + zend_stack object_stack; + zend_stack declare_stack; + zend_stack list_stack; + zend_stack context_stack; TSRMLS_FETCH(); /* Obtain relevant filename and lineno */ @@ -1123,6 +1148,14 @@ if (in_compilation) { saved_class_entry = CG(active_class_entry); CG(active_class_entry) = NULL; + SAVE_STACK(bp_stack); + SAVE_STACK(function_call_stack); + SAVE_STACK(switch_cond_stack); + SAVE_STACK(foreach_copy_stack); + SAVE_STACK(object_stack); + SAVE_STACK(declare_stack); + SAVE_STACK(list_stack); + SAVE_STACK(context_stack); } if (call_user_function_ex(CG(function_table), NULL, orig_user_error_handler, &retval, 5, params, 1, NULL TSRMLS_CC) == SUCCESS) { @@ -1139,6 +1172,14 @@ if (in_compilation) { CG(active_class_entry) = saved_class_entry; + RESTORE_STACK(bp_stack); + RESTORE_STACK(function_call_stack); + RESTORE_STACK(switch_cond_stack); + RESTORE_STACK(foreach_copy_stack); + RESTORE_STACK(object_stack); + RESTORE_STACK(declare_stack); + RESTORE_STACK(list_stack); + RESTORE_STACK(context_stack); } if (!EG(user_error_handler)) { Modified: php/php-src/trunk/Zend/zend.c =================================================================== --- php/php-src/trunk/Zend/zend.c 2011-08-02 06:21:40 UTC (rev 314085) +++ php/php-src/trunk/Zend/zend.c 2011-08-02 07:38:23 UTC (rev 314086) @@ -975,6 +975,23 @@ } /* }}} */ +#define SAVE_STACK(stack) do { \ + if (CG(stack).top) { \ + memcpy(&stack, &CG(stack), sizeof(zend_stack)); \ + CG(stack).top = CG(stack).max = 0; \ + CG(stack).elements = NULL; \ + } else { \ + stack.top = 0; \ + } \ + } while (0) + +#define RESTORE_STACK(stack) do { \ + if (stack.top) { \ + zend_stack_destroy(&CG(stack)); \ + memcpy(&CG(stack), &stack, sizeof(zend_stack)); \ + } \ + } while (0) + ZEND_API void zend_error(int type, const char *format, ...) /* {{{ */ { va_list args; @@ -987,6 +1004,14 @@ zval *orig_user_error_handler; zend_bool in_compilation; zend_class_entry *saved_class_entry; + zend_stack bp_stack; + zend_stack function_call_stack; + zend_stack switch_cond_stack; + zend_stack foreach_copy_stack; + zend_stack object_stack; + zend_stack declare_stack; + zend_stack list_stack; + zend_stack context_stack; TSRMLS_FETCH(); /* Obtain relevant filename and lineno */ @@ -1123,6 +1148,14 @@ if (in_compilation) { saved_class_entry = CG(active_class_entry); CG(active_class_entry) = NULL; + SAVE_STACK(bp_stack); + SAVE_STACK(function_call_stack); + SAVE_STACK(switch_cond_stack); + SAVE_STACK(foreach_copy_stack); + SAVE_STACK(object_stack); + SAVE_STACK(declare_stack); + SAVE_STACK(list_stack); + SAVE_STACK(context_stack); } if (call_user_function_ex(CG(function_table), NULL, orig_user_error_handler, &retval, 5, params, 1, NULL TSRMLS_CC) == SUCCESS) { @@ -1139,6 +1172,14 @@ if (in_compilation) { CG(active_class_entry) = saved_class_entry; + RESTORE_STACK(bp_stack); + RESTORE_STACK(function_call_stack); + RESTORE_STACK(switch_cond_stack); + RESTORE_STACK(foreach_copy_stack); + RESTORE_STACK(object_stack); + RESTORE_STACK(declare_stack); + RESTORE_STACK(list_stack); + RESTORE_STACK(context_stack); } if (!EG(user_error_handler)) {
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