Backported fix for bug #62852

NEWS

@@ -14,6 +14,9 @@ PHP                                                                        NEWS
   . Fixed bug #63530 (mysqlnd_stmt::bind_one_parameter crashes, uses wrong alloc
     for stmt->param_bind). (Andrey)
 
+- DateTime
+  . Fixed bug #62852 (Unserialize Invalid Date causes crash). (Anatol)
+
 
 14 Mar 2013, PHP 5.3.23
 

ext/date/php_date.c

@@ -2554,13 +2554,15 @@ static int php_date_initialize_from_hash(zval **return_value, php_date_obj **dat
 					case TIMELIB_ZONETYPE_OFFSET:
 					case TIMELIB_ZONETYPE_ABBR: {
 						char *tmp = emalloc(Z_STRLEN_PP(z_date) + Z_STRLEN_PP(z_timezone) + 2);
+						int ret;
 						snprintf(tmp, Z_STRLEN_PP(z_date) + Z_STRLEN_PP(z_timezone) + 2, "%s %s", Z_STRVAL_PP(z_date), Z_STRVAL_PP(z_timezone));
-						php_date_initialize(*dateobj, tmp, Z_STRLEN_PP(z_date) + Z_STRLEN_PP(z_timezone) + 1, NULL, NULL, 0 TSRMLS_CC);
+						ret = php_date_initialize(*dateobj, tmp, Z_STRLEN_PP(z_date) + Z_STRLEN_PP(z_timezone) + 1, NULL, NULL, 0 TSRMLS_CC);
 						efree(tmp);
-						return 1;
+						return 1 == ret;
 					}
 
-					case TIMELIB_ZONETYPE_ID:
+					case TIMELIB_ZONETYPE_ID: {
+						int ret;
 						convert_to_string(*z_timezone);
 
 						tzi = php_date_parse_tzfile(Z_STRVAL_PP(z_timezone), DATE_TIMEZONEDB TSRMLS_CC);
@@ -2571,9 +2573,10 @@ static int php_date_initialize_from_hash(zval **return_value, php_date_obj **dat
 						tzobj->tzi.tz = tzi;
 						tzobj->initialized = 1;
 
-						php_date_initialize(*dateobj, Z_STRVAL_PP(z_date), Z_STRLEN_PP(z_date), NULL, tmp_obj, 0 TSRMLS_CC);
+						ret = php_date_initialize(*dateobj, Z_STRVAL_PP(z_date), Z_STRLEN_PP(z_date), NULL, tmp_obj, 0 TSRMLS_CC);
 						zval_ptr_dtor(&tmp_obj);
-						return 1;
+						return 1 == ret;
+					}
 				}
 			}
 		}
@@ -2597,7 +2600,9 @@ PHP_METHOD(DateTime, __set_state)
 
 	php_date_instantiate(date_ce_date, return_value TSRMLS_CC);
 	dateobj = (php_date_obj *) zend_object_store_get_object(return_value TSRMLS_CC);
-	php_date_initialize_from_hash(&return_value, &dateobj, myht TSRMLS_CC);
+	if (!php_date_initialize_from_hash(&return_value, &dateobj, myht TSRMLS_CC)) {
+		php_error(E_ERROR, "Invalid serialization data for DateTime object");
+	}
 }
 /* }}} */
 
@@ -2613,7 +2618,9 @@ PHP_METHOD(DateTime, __wakeup)
 
 	myht = Z_OBJPROP_P(object);
 
-	php_date_initialize_from_hash(&return_value, &dateobj, myht TSRMLS_CC);
+	if (!php_date_initialize_from_hash(&return_value, &dateobj, myht TSRMLS_CC)) {
+		php_error(E_ERROR, "Invalid serialization data for DateTime object");
+	}
 }
 /* }}} */
 

ext/date/tests/bug62852.phpt

@@ -1,36 +1,14 @@
 --TEST--
-Bug #62852 (Unserialize invalid DateTime causes crash)
+Bug #62852 (Unserialize invalid DateTime causes crash), variation 1
 --INI--
 date.timezone=GMT
---XFAIL--
-bug is not fixed yet
 --FILE--
 <?php
 $s1 = 'O:8:"DateTime":3:{s:4:"date";s:20:"10007-06-07 03:51:49";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}';
-$s2 = 'O:3:"Foo":3:{s:4:"date";s:20:"10007-06-07 03:51:49";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}';
 
-global $foo;
-
-class Foo extends DateTime {
-    function __wakeup() {
-        global $foo;
-        $foo = $this;
-        parent::__wakeup();
-    }
-}
-
-// Old test case
 try {
     unserialize( $s1 );
 } catch ( Exception $e ) {}
 
-// My test case
-try {
-    unserialize( $s2 );
-} catch ( Exception $e ) {}
-var_dump( $foo );
-
-echo "okey";
-?>
 --EXPECTF--
-okey
+Fatal error: Invalid serialization data for DateTime object in %sbug62852.php on line %d

ext/date/tests/bug62852_var2.phpt

@@ -0,0 +1,25 @@
+--TEST--
+Bug #62852 (Unserialize invalid DateTime causes crash), variation 2
+--INI--
+date.timezone=GMT
+--FILE--
+<?php
+$s2 = 'O:3:"Foo":3:{s:4:"date";s:20:"10007-06-07 03:51:49";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}';
+
+global $foo;
+
+class Foo extends DateTime {
+    function __wakeup() {
+        global $foo;
+        $foo = $this;
+        parent::__wakeup();
+    }
+}
+
+try {
+    unserialize( $s2 );
+} catch ( Exception $e ) {}
+var_dump( $foo );
+
+--EXPECTF--
+Fatal error: Invalid serialization data for DateTime object in %sbug62852_var2.php on line %d

ext/date/tests/bug62852_var3.phpt

@@ -0,0 +1,25 @@
+--TEST--
+Bug #62852 (Unserialize invalid DateTime causes crash), variation 3
+--INI--
+date.timezone=GMT
+--FILE--
+<?php
+$s2 = 'O:3:"Foo":3:{s:4:"date";s:19:"0000-00-00 00:00:00";s:13:"timezone_type";i:0;s:8:"timezone";s:3:"UTC";}';
+
+global $foo;
+
+class Foo extends DateTime {
+    function __wakeup() {
+        global $foo;
+        $foo = $this;
+        parent::__wakeup();
+    }
+}
+
+try {
+    unserialize( $s2 );
+} catch ( Exception $e ) {}
+var_dump( $foo );
+
+--EXPECTF--
+Fatal error: Invalid serialization data for DateTime object in %sbug62852_var3.php on line %d