CVE-2023-53314 fbdev/ep93xx-fb: Do not assign to struct fb_info.dev
A bug in the ep93xx framebuffer driver causes a reference counter leak, potentially leading to resource exhaustion and 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-2023-53314?
CVE-2023-53314 is a high-severity vulnerability in Linux kernel, published on 16 Sep 2025. 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:
fbdev/ep93xx-fb: Do not assign to struct fb_info.dev
Do not assing the Linux device to struct fb_info.dev. The call to register_framebuffer() initializes the field to the fbdev device. Drivers should not override its value.
Fixes a bug where the driver incorrectly decreases the hardware device's reference counter and leaks the fbdev device.
v2: * add Fixes tag (Dan)
Which versions are affected by CVE-2023-53314?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-53314?
Apply the vendor's patch.
Is CVE-2023-53314 being exploited?
There is no known exploitation of CVE-2023-53314 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-53314, DEBIAN-CVE-2023-53314, GHSA-p9jr-xxvg-3xmg, UBUNTU-CVE-2023-53314.