drm: Prevent drm_copy_field() to attempt copying a NULL pointer
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.14.296 by commit ee9885cd936aad88f84d0cf90bf9a70e83e42a97. For more details please see the references link.