CVE-2026-80696 hwmon: (ltc4282) Fix reading the minimum alarm voltage
A missing return statement in the ltc4282 hardware monitoring driver causes an out-of-bounds memory read, potentially leaking kernel memory or crashing the system.
- 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-2026-80696?
CVE-2026-80696 is a high-severity memory corruption vulnerability in Linux, published on 28 Aug 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:
hwmon: (ltc4282) Fix reading the minimum alarm voltage
Coverity reports an out-of-bounds access when reading the minimum alarm voltage for the VGPIO channel. Add the missing return statement to fix the problem.
Which versions are affected by CVE-2026-80696?
How do I fix CVE-2026-80696?
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-2026-80696 being exploited?
There is no known exploitation of CVE-2026-80696 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-80696, DEBIAN-CVE-2026-80696, GHSA-f4wh-v8mr-vmx9, UBUNTU-CVE-2026-80696.