CVE-2026-53378

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

drm/colorop: Fix blob property reference tracking in state lifecycle

The colorop state blob property handling had memory leaks during state

duplication, destruction, and reset operations. The implementation

failed to follow the established pattern from drm_crtc's handling of

DEGAMMA/GAMMA blob properties.

Issues fixed:

- drm_colorop_atomic_destroy_state() was freeing state memory without

releasing the blob reference, causing a leak

- drm_colorop_reset() was directly freeing old state with kfree()

instead of properly destroying it, leaking blob references

- drm_colorop_cleanup() had duplicate blob cleanup code

Changes:

- Add __drm_atomic_helper_colorop_destroy_state() helper to properly

release blob references before freeing state memory

- Update drm_colorop_atomic_destroy_state() to call the helper

- Fix drm_colorop_reset() to use drm_colorop_atomic_destroy_state()

for proper cleanup of old state

- Simplify

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References