Fix leak on double DatePeriod::__construct() call

Closes GH-22643

Author: iluuu1994

NEWS

@@ -2,6 +2,8 @@ PHP                                                                        NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 ?? ??? ????, PHP 8.2.33
 
+- Date:
+  . Fixed leak on double DatePeriod::__construct() call. (ilutov)
 
 02 Jul 2026, PHP 8.2.32
 

ext/date/php_date.c

@@ -4720,6 +4720,23 @@ static bool date_period_initialize(timelib_time **st, timelib_time **et, timelib
 	return retval;
 } /* }}} */
 
+static void date_period_reset(php_period_obj *period_obj)
+{
+	if (period_obj->start) {
+		timelib_time_dtor(period_obj->start);
+	}
+	if (period_obj->current) {
+		timelib_time_dtor(period_obj->current);
+	}
+	if (period_obj->end) {
+		timelib_time_dtor(period_obj->end);
+	}
+	if (period_obj->interval) {
+		timelib_rel_time_dtor(period_obj->interval);
+	}
+	memset(period_obj, 0, XtOffsetOf(php_period_obj, std));
+}
+
 /* {{{ Creates new DatePeriod object. */
 PHP_METHOD(DatePeriod, __construct)
 {
@@ -4741,7 +4758,7 @@ PHP_METHOD(DatePeriod, __construct)
 	}
 
 	dpobj = Z_PHPPERIOD_P(ZEND_THIS);
-	dpobj->current = NULL;
+	date_period_reset(dpobj);
 
 	if (isostr) {
 		if (!date_period_initialize(&(dpobj->start), &(dpobj->end), &(dpobj->interval), &recurrences, isostr, isostr_len)) {
@@ -4780,6 +4797,7 @@ PHP_METHOD(DatePeriod, __construct)
 		if (end) {
 			DATE_CHECK_INITIALIZED(Z_PHPDATE_P(end)->time, DateTimeInterface);
 		}
+		DATE_CHECK_INITIALIZED(Z_PHPINTERVAL_P(interval)->initialized, Z_OBJCE_P(interval));
 
 		/* init */
 		php_interval_obj *intobj = Z_PHPINTERVAL_P(interval);

ext/date/tests/DatePeriod_double_constructor_call.phpt

@@ -0,0 +1,14 @@
+--TEST--
+Double DatePeriod::__construct() call
+--FILE--
+<?php
+
+$start = new \DateTime();
+$interval = new \DateInterval('P1D');
+$period = new \DatePeriod($start, $interval, 1);
+$period->__construct($start, $interval, 1);
+
+?>
+===DONE===
+--EXPECT--
+===DONE===