CVE-2026-43498 accel/ivpu: Disallow re-exporting imported GEM objects

In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Disallow re-exporting imported GEM objects Prevent re-exporting of imported GEM buffers by adding a custom primehandletofd callback that checks if the object is imported and returns -EOPNOTSUPP if so. Re-exporting...