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 drmmode_duplicate(). Add a check to avoid npd.
The failure status of drmcvtmode() on the other path is checked too.