CVE-2026-63855 | Linux Kernel up to 6.6.140/6.12.90/6.18.32/7.0.9 Vcn Encoder Decoder drm/amdgpu/vcn privilege escalation

A vulnerability, which was classified as very critical, has been found in Linux Kernel up to 6.6.140/6.12.90/6.18.32/7.0.9. Affected by this vulnerability is an unknown functionality of the file drm/amdgpu/vcn of the component Vcn Encoder Decoder. The manipulation leads to privilege escalation.

This vulnerability is documented as CVE-2026-63855. The attack can be initiated remotely. There is not any exploit available.