CVE-2026-98783 drm/mediatek: Add missing IS_ERR check for ovl_adaptor platform device
A missing error check in the Mediatek DRM driver can cause a kernel crash when platform device registration fails, leading to 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-2026-98783?
CVE-2026-98783 is a 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: Add missing IS_ERR check for ovl_adaptor platform device
platform_device_register_data() can fail and return an ERR_PTR, but the return value is used without checking, leading to an invalid pointer being stored in ddp_comp[].dev and passed to component_match_add() and mtk_ddp_comp_init(), which could result in a kernel crash.
Add an IS_ERR() check to jump to the error handling path on failure.
Which versions are affected by CVE-2026-98783?
How do I fix CVE-2026-98783?
Apply the vendor's patch.
Is CVE-2026-98783 being exploited?
There is no known exploitation of CVE-2026-98783 in the wild and no public exploit code.
Sources
Also known as AZL-110471, BELL-CVE-2026-98783, DEBIAN-CVE-2026-98783, GHSA-gxv2-4p27-m9pp, UBUNTU-CVE-2026-98783.