CVE-2026-68229 media: cedrus: skip invalid H.264 reference list entries

In the Linux kernel, the following vulnerability has been resolved: media: cedrus: skip invalid H.264 reference list entries Cedrus consumes H.264 refpiclist0/refpiclist1 entries from the stateless slice control and later uses their indices to look up decode-dpb in cedruswritereflist. Rejecting...