In the Linux kernel, the following vulnerability has been resolved: drm/radeon: fix a possible null pointer dereference In radeonfpnativemode(), the return value of drmmodeduplicate() is assigned to mode, which will lead to a NULL pointer dereference on failure of drmmodeduplicate(). Add a check to avoid npd. The failure status of drmcvt_mode() on the other path is checked too.