CVE-2026-98835 iio: accel: kionix-kx022a: Fix array boundary check
A missing boundary check in the Kionix accelerometer driver allows out-of-bounds access, potentially leading to system crashes or code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-98835?
CVE-2026-98835 is a vulnerability in Linux, published on 18 Oct 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:
iio: accel: kionix-kx022a: Fix array boundary check
The driver performs a sanity check for an array size, when converting a register value to an array index. The check incorrectly accepts the sizeof(array) as a last index, when last valid index should be sizeof(array) - 1.
Fix the check by bailing out when index >= sizeof(array).
Which versions are affected by CVE-2026-98835?
How do I fix CVE-2026-98835?
Apply the vendor's patch.
Is CVE-2026-98835 being exploited?
There is no known exploitation of CVE-2026-98835 in the wild and no public exploit code.
Sources
Also known as AZL-108989, BELL-CVE-2026-98835, DEBIAN-CVE-2026-98835, GHSA-rhqh-r6x3-52xx, UBUNTU-CVE-2026-98835.