CVE-2025-40262 Input: imx_sc_key - fix memory corruption on unload
A memory corruption vulnerability in the Linux kernel's imx_sc_key driver allows attackers to cause crashes or potentially execute code via improper pointer handling during module unload.
- 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-2025-40262?
CVE-2025-40262 is a high-severity memory corruption vulnerability in Linux, published on 4 Dec 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:
Input: imx_sc_key - fix memory corruption on unload
This is supposed to be "priv" but we accidentally pass "&priv" which is an address in the stack and so it will lead to memory corruption when the imx_sc_key_action() function is called. Remove the &.
Which versions are affected by CVE-2025-40262?
How do I fix CVE-2025-40262?
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-2025-40262 being exploited?
There is no known exploitation of CVE-2025-40262 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2025-40262, DEBIAN-CVE-2025-40262, GHSA-2m33-w232-qf59, ROOT-OS-DEBIAN-12-CVE-2025-40262, ROOT-OS-DEBIAN-13-CVE-2025-40262, ROOT-OS-UBUNTU-2204-CVE-2025-40262 and 2 more.