CVE-2026-53066: drm/sun4i: backend: fix error pointer dereference
drm/sun4i: backend: fix error pointer dereference
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.6.143.1-1 - Upgrade
Upgrade
Linux kernel (drivers/gpu/drm/sun4i/sun4i_backend.c)to a version that resolves this vulnerability.Patch drm/sun4i: backend: fix error pointer dereference - Compensating control
Apply the fix for error pointer dereference in drm_atomic_get_plane_state() by adding an ERR_PTR() / IS_ERR() check before dereferencing the returned plane_state in sun4i_backend_atomic_check() (drivers/gpu/drm/sun4i/sun4i_backend.c around the referenced line 496).
Event History
Frequently Asked Questions
What is the severity of CVE-2026-53066?
CVE-2026-53066 has a risk score of 27.
How do I fix CVE-2026-53066?
To fix CVE-2026-53066, ensure that the error pointer in the drm_atomic_get_plane_state() function is properly checked.
Which software is affected by CVE-2026-53066?
CVE-2026-53066 affects the Linux kernel.
What type of vulnerability is CVE-2026-53066?
CVE-2026-53066 is an error pointer dereference vulnerability in the Linux kernel.
When was CVE-2026-53066 published?
CVE-2026-53066 was published on June 24, 2026.