CVE-2025-38484 iio: backend: fix out-of-bound write
An out-of-bounds write in the Linux kernel IIO backend allows attackers to corrupt memory, potentially leading to code execution or privilege escalation.
- 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-2025-38484?
CVE-2025-38484 is a high-severity memory corruption vulnerability in Linux kernel, published on 28 Jul 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: fix out-of-bound write
The buffer is set to 80 character. If a caller write more characters, count is truncated to the max available space in "simple_write_to_buffer". But afterwards a string terminator is written to the buffer at offset count without boundary check. The zero termination is written OUT-OF-BOUND.
Add a check that the given buffer is smaller then the buffer to prevent.
Weakness: CWE-787
Which versions are affected by CVE-2025-38484?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-38484?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-38484 being exploited?
There is no known exploitation of CVE-2025-38484 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2025-38484, DEBIAN-CVE-2025-38484, GHSA-p577-8xfh-jm39, UBUNTU-CVE-2025-38484.