Bug #77298 [NEW]: segfault occurs when add property to unserialized ArrayObject

From: conorycom at gmail dot com Operating system: centos7 PHP version: 7.3.0 Package: Class/Object related Bug Type: Bug Bug description:segfault occurs when add property to unserialized ArrayObject Description: ------------ segfault occurs when add property to unserialized ArrayObject Test script: --------------- <?php // 1 $a = unserialize('C:11:"ArrayObject":21:{x:i:2;a:0:{};m:a:0:{}}C:11:"ArrayObject":21:{x:i:2;a:0:{};m:a:0:{}}C:11:"ArrayObject":21:{x:i:2;a:0:{};m:a:0:{}}'); $a->c = 'test'; // 2 $b = new \ArrayObject; $b->unserialize('x:i:2;a:0:{};m:a:0:{}x:i:2;a:0:{};m:a:0:{}x:i:2;a:0:{};m:a:0:{}'); $b->c = 'test'; Actual result: -------------- segfault! -- Edit bug report at https://bugs.php.net/bug.php?id=77298&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77298&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77298&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77298&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77298&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77298&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77298&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77298&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77298&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77298&r=support Expected behavior: https://bugs.php.net/fix.php?id=77298&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77298&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77298&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77298&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77298&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77298&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77298&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77298&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77298&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77298&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77298&r=mysqlcfg