Bug #77510 [NEW]: zend_hash_str_find_ptr causes segfault

From: whdcksz at gmail dot com Operating system: Ubuntu 18.04 PHP version: 7.2.14 Package: Unknown/Other Function Bug Type: Bug Bug description:zend_hash_str_find_ptr causes segfault Description: ------------ Hi everyone, I'm a noob developer and developing a extension and I am experiencing very strange problem that I don't understand. Everytime I call zend_hash_str_find_ptr to a HashTable which is initialized in PHP_GINIT_FUNCTION, it crashes with segfault. If I move initialization of HashTable into PHP_RINIT_FUNCTION, it worked. Also, if I use malloc instead of ALLOC_HASHTABLE, it worked, too. And also, if I set USE_ZEND_ALLOC=0, it worked, too. It looks like a bug related GC but I can't pretty sure. -- Edit bug report at https://bugs.php.net/bug.php?id=77510&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77510&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77510&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77510&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77510&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77510&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77510&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77510&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77510&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77510&r=support Expected behavior: https://bugs.php.net/fix.php?id=77510&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77510&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77510&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77510&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77510&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77510&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77510&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77510&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77510&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77510&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77510&r=mysqlcfg