In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Fix off by one in hdmi14process_transaction()
The hdcpi2coffsets[] array did not have an entry for HDCPMESSAGEIDWRITECONTENTSTREAMTYPE so it led to an off by one read overflow. I added an entry and copied the 0x0 value for the offset from similar code in drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c.
I also declared several of these arrays as having HDCPMESSAGEID_MAX entries. This doesn't change the code, but it's just a belt and suspenders approach to try future proof the code.