Fix crash on PropertyReflection::{get,set}RawValue() on dynamic prop

Author: iluuu1994

ext/reflection/php_reflection.c

@@ -5851,7 +5851,7 @@ ZEND_METHOD(ReflectionProperty, getRawValue)
 		RETURN_THROWS();
 	}
 
-	if (!ref->prop->hooks || !ref->prop->hooks[ZEND_PROPERTY_HOOK_GET]) {
+	if (!ref->prop || !ref->prop->hooks || !ref->prop->hooks[ZEND_PROPERTY_HOOK_GET]) {
 		zval rv;
 		zval *member_p = zend_read_property_ex(intern->ce, Z_OBJ_P(object), ref->unmangled_name, 0, &rv);
 
@@ -5887,7 +5887,7 @@ ZEND_METHOD(ReflectionProperty, setRawValue)
 		RETURN_THROWS();
 	}
 
-	if (!ref->prop->hooks || !ref->prop->hooks[ZEND_PROPERTY_HOOK_SET]) {
+	if (!ref->prop || !ref->prop->hooks || !ref->prop->hooks[ZEND_PROPERTY_HOOK_SET]) {
 		zend_update_property_ex(intern->ce, Z_OBJ_P(object), ref->unmangled_name, value);
 	} else {
 		zend_function *func = zend_get_property_hook_trampoline(ref->prop, ZEND_PROPERTY_HOOK_SET, ref->unmangled_name);

ext/reflection/tests/property_hooks/bug_001.phpt

@@ -0,0 +1,25 @@
+--TEST--
+ReflectionProperty::{get,set}RawValue() crashes on dynamic properties
+--FILE--
+<?php
+
+class A {
+    public $a;
+}
+
+$a = new A();
+$b = new A();
+$b->dyn = 1;
+
+$prop = new ReflectionProperty($b, 'dyn');
+var_dump($prop->getRawValue($a));
+$prop->setRawValue($a, 1);
+
+?>
+--EXPECTF--
+Deprecated: Creation of dynamic property A::$dyn is deprecated in %s on line %d
+
+Warning: Undefined property: A::$dyn in %s on line %d
+NULL
+
+Deprecated: Creation of dynamic property A::$dyn is deprecated in %s on line %d