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Exception::$previous is a private property, so we can add a type:
private ?Throwable $previous = null;
14 lines
710 B
PHP
14 lines
710 B
PHP
--TEST--
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Bug #70121 (unserialize() could lead to unexpected methods execution / NULL pointer deref)
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--FILE--
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<?php
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unserialize('O:12:"DateInterval":1:{s:4:"days";O:9:"Exception":7:{s:10:"'."\0".'*'."\0".'message";s:1:"x";s:17:"'."\0".'Exception'."\0".'string";s:1:"A";s:7:"'."\0".'*'."\0".'code";i:0;s:7:"'."\0".'*'."\0".'file";s:1:"a";s:7:"'."\0".'*'."\0".'line";i:1337;s:16:"'."\0".'Exception'."\0".'trace";a:0:{}s:19:"'."\0".'Exception'."\0".'previous";O:8:"stdClass":0:{}}}');
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?>
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OK
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--EXPECTF--
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Fatal error: Uncaught TypeError: Cannot assign stdClass to property Exception::$previous of type ?Throwable in %s:%d
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Stack trace:
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#0 %s(%d): unserialize('O:12:"DateInter...')
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#1 {main}
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thrown in %s on line %d
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