CVE-2026-98782 drm/mediatek: Fix ovl adaptor platform device leak
A resource leak in the Mediatek DRM driver can lead to memory exhaustion and denial of service if probe or removal paths fail.
- 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-2026-98782?
CVE-2026-98782 is a memory corruption vulnerability in Linux, published on 18 Oct 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/mediatek: Fix ovl adaptor platform device leak
mtk_drm_probe() creates an OVL adaptor platform device with platform_device_register_data() when the display pipeline requires the OVL adaptor.
If a later initialization step fails, the probe error path releases the DRM resources without unregistering the already registered OVL adaptor device. The normal remove path likewise leaves the device registered after the DRM driver is unbound.
Keep track of whether the OVL adaptor was successfully registered and unregister it on probe failure. Also recover the platform device from the stored DDP component device and unregister it during normal removal.
The issue was identified by a static analysis tool I developed and confirmed by manual review.
Which versions are affected by CVE-2026-98782?
How do I fix CVE-2026-98782?
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-2026-98782 being exploited?
There is no known exploitation of CVE-2026-98782 in the wild and no public exploit code.
Sources
Also known as AZL-110468, BELL-CVE-2026-98782, DEBIAN-CVE-2026-98782, GHSA-cpv8-j2cq-v3fc, UBUNTU-CVE-2026-98782.