CVE-2025-21985

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue concerns out-of-bound accesses in the Linux kernel, specifically in the drm/amd/display component. The problem arises because hpo stream to link encoder mapping has a size of MAX HPO DP2 ENCODERS (which is 4), but the location can have a size up to 6, necessitating a check against MAX HPO DP2 ENCODERS. Similarly, disp cfg stream location can be used as an array index, which should range from 0 to 5. The conditions in the ASSERT statements should be adjusted to be less than, without equal.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.