[php-src] Issue #15582: Segmentation fault (access null pointer) in ext/date/lib/parse_tz.c
| From: | YuanchengJiang | Date: | Sun, 25 Aug 2024 11:59:44 +0000 |
| Subject: | [php-src] Issue #15582: Segmentation fault (access null pointer) in ext/date/lib/parse_tz.c | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-247589@lists.php.net to get a copy of this message | ||
Issue: https://github.com/php/php-src/issues/15582
Author: YuanchengJiang
### Description
The following code:
```php
<?php
class MyDateTimeZone extends DateTimeZone
{
function __construct()
{
}
}
$mdtz = new MyDateTimeZone();
$fusion = $mdtz;
$d[] = date_create("2005-07-14 22:30:41", $fusion);
foreach($d as $date) {
echo $date->format(DateTime::ISO8601), "\n";
}
```
Resulted in this output:
```
/php-src/ext/date/lib/parse_tz.c:800:11: runtime error: member access within null pointer of type
'timelib_tzinfo' (aka 'struct _timelib_tzinfo')
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /php-src/ext/date/lib/parse_tz.c:800:11
```
### PHP Version
PHP 8.4.0-dev
### Operating System
ubuntu 22.04