In the Linux kernel, the following vulnerability has been resolved:

drm/mediatek: Fix pdev reference leak in mtk drm bind()

When the device is not the mmsys master, mtk drm bind() returns early after taking a reference on the disp-mutex device via of find device by node(), without ever dropping it: mtk drm unbind() only puts mutex dev for the master. Drop the reference before returning from the non-master path.