CVE-2026-90298 drm/sun4i: tcon: Drop TCON TOP device reference
A missing device reference drop in the Linux kernel sun4i TCON driver can lead to memory corruption and denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-90298?
CVE-2026-90298 is a memory corruption vulnerability in Linux, published on 17 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
drm/sun4i: tcon: Drop TCON TOP device reference
of_find_device_by_node() takes a device reference. Drop it after mux configuration succeeds.
Which versions are affected by CVE-2026-90298?
How do I fix CVE-2026-90298?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-90298 being exploited?
There is no known exploitation of CVE-2026-90298 in the wild and no public exploit code.
Sources
Also known as AZL-102758, BELL-CVE-2026-90298, DEBIAN-CVE-2026-90298, GHSA-fvf8-78jv-2933, UBUNTU-CVE-2026-90298.