COMPersistHelper::LoadFromStream() can segfault

[cmb69]

Description

COMPersistHelper::LoadFromStream() segfaults if the COM object implements IPersistStream but not IPersistStreamInit:

php-src/ext/com_dotnet/com_persist.c

Lines 558 to 561 in 16c9652

	res = get_persist_stream(helper);
	if (helper->ips) {
	res = IPersistStreamInit_Load(helper->ipsi, stm);
	}

PHP Version

PHP 5.0

Operating System

Windows