LdrpModuleDatatableLock and other ntdll mechanisms can cause a deadlock after thread freezing

[praydog]

Shortly before this, I freeze the threads with SafetyhookFactory::acquire(). In one of the functions I call while threads are frozen, I am calling this function:

    std::optional<HMODULE> get_module_within(Address address) {
        HMODULE module = nullptr;
        if (GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, address.as<LPCSTR>(), &module)) {
            return module;
        }

        return {};
    }

This is the offending mutex in ntdll:

For now, I've gotten around this by acquiring in multiple places instead of in one giant code block, to limit the potential that I will run into this issue.

[cursey]

Should be fixed with latest changes. Reopen if you continue to experience this issue.