In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix memory leak in pvrprobe The error handling code in pvr2hdwcreate forgets to unregister the v4l2 device. When pvr2hdwcreate returns back to pvr2contextcreate, it calls pvr2contextdestroy to destroy context, but mp->hdw is NULL, which leads to that pvr2hdwdestroy directly returns. Fix this by adding v4l2device_unregister to decrease the refcount of usb interface.