CVE-2026-53279 drm/gma500/oaktrail_lvds: fix hang on init failure
A flaw in the Linux kernel's gma500 LVDS driver causes an indefinite hang during initialization failure, leading to a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-53279?
CVE-2026-53279 is a medium-severity denial of service vulnerability in Linux kernel, published on 26 Jun 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/gma500/oaktrail_lvds: fix hang on init failure
The LVDS init code looks up an I2C adapter using i2c_get_adapter() and tries to read the EDID before falling back to allocating and registering its own adapter.
The error handling does not separate these cases so on a late init failure it will try to deregister and free also an adapter that had previously been registered. Since i2c_get_adapter() takes another reference to the adapter, deregistration hangs indefinitely while waiting for the reference to be released.
Fix this by only destroying adapters allocated during LVDS init on errors.
Which versions are affected by CVE-2026-53279?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-53279?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-53279 being exploited?
There is no known exploitation of CVE-2026-53279 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-53279, DEBIAN-CVE-2026-53279, GHSA-jqmf-8mg5-g38p, ROOT-OS-UBUNTU-2404-CVE-2026-53279, UBUNTU-CVE-2026-53279.