CVE-2025-22082 iio: backend: make sure to NULL terminate stack buffer
A missing NULL termination in the Linux kernel IIO backend can cause a crash when processing debugfs writes, leading to 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-2025-22082?
CVE-2025-22082 is a medium-severity vulnerability in Linux kernel, published on 16 Apr 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:
iio: backend: make sure to NULL terminate stack buffer
Make sure to NULL terminate the buffer in iio_backend_debugfs_write_reg() before passing it to sscanf(). It is a stack variable so we should not assume it will 0 initialized.
Which versions are affected by CVE-2025-22082?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-22082?
Apply the vendor's patch.
Is CVE-2025-22082 being exploited?
There is no known exploitation of CVE-2025-22082 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2025-22082, DEBIAN-CVE-2025-22082, GHSA-m587-7hw6-635x, UBUNTU-CVE-2025-22082.