CVE-2026-46263 drm/amd/display: Fix out-of-bounds stream encoder index v3

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix out-of-bounds stream encoder index v3 engid can be negative and that streamencregs can be indexed out of bounds. engid is used directly as an index into streamencregs, which has only 5 entries. When engid is ...