Bug #79778 [NEW]: Assertion fail in __zval_get_string_func, which causes segfault in release buil

From: changochen1 at gmail dot com Operating system: PHP version: 8.0Git-2020-07-03 (Git) Package: Scripting Engine problem Bug Type: Bug Bug description:Assertion fail in __zval_get_string_func, which causes segfault in release buil Description: ------------ Log: /home/yongheng/php-src/Zend/zend_operators.c:915: zend_string *__zval_get_string_func(zval *, zend_bool): Assertion `0' failed. Cmdline: php -f poc Test script: --------------- <? print_r ( function () {static $a = b;}) ; -- Edit bug report at https://bugs.php.net/bug.php?id=79778&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=79778&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=79778&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=79778&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=79778&r=needscript Try newer version: https://bugs.php.net/fix.php?id=79778&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=79778&r=support Expected behavior: https://bugs.php.net/fix.php?id=79778&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=79778&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=79778&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=79778&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=79778&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=79778&r=dst IIS Stability: https://bugs.php.net/fix.php?id=79778&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=79778&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=79778&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=79778&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=79778&r=mysqlcfg