CVE-2026-74422

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

Description A use-after-free issue exists in the drm/rockchip: inno-hdmi driver. The driver uses drmm encoder init() to initialize the encoder and drmm add action() to register drm encoder cleanup() for automatic cleanup. However, the internal structure containing the encoder is allocated using devm kzalloc() during the component bind all() call. The component framework deallocates this structure during component unbind all(). When the DRM device reference is later dropped via drm dev put() in rockchip drm unbind(), the function drmm encoder alloc release() attempts to access the already released encoder structure. Use-after-free occurs when a program continues to use a pointer after it has been freed.

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