CVE-2025-37851 fbdev: omapfb: Add 'plane' value check
A missing check in the Linux kernel's omapfb driver could lead to a buffer overflow and potential 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-2025-37851?
CVE-2025-37851 is a medium-severity vulnerability in Debian Debian Linux, published on 9 May 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: omapfb: Add 'plane' value check
Function dispc_ovl_setup is not intended to work with the value OMAP_DSS_WB of the enum parameter plane.
The value of this parameter is initialized in dss_init_overlays and in the current state of the code it cannot take this value so it's not a real problem.
For the purposes of defensive coding it wouldn't be superfluous to check the parameter value, because some functions down the call stack process this value correctly and some not.
For example, in dispc_ovl_setup_global_alpha it may lead to buffer overflow.
Add check for this value.
Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool.
Weakness: CWE-674
Which versions are affected by CVE-2025-37851?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2025-37851?
Apply the vendor's patch.
Is CVE-2025-37851 being exploited?
There is no known exploitation of CVE-2025-37851 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BELL-CVE-2025-37851, DEBIAN-CVE-2025-37851, GHSA-775j-mphj-44x5, ROOT-OS-DEBIAN-12-CVE-2025-37851, ROOT-OS-UBUNTU-2204-CVE-2025-37851, ROOT-OS-UBUNTU-2404-CVE-2025-37851 and 1 more.