CVE-2023-54252 platform/x86: think-lmi: Fix memory leaks when parsing ThinkStation WMI strings
A memory leak in the Linux kernel ThinkStation WMI driver allows local attackers to cause denial of service by exhausting system memory.
- 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-2023-54252?
CVE-2023-54252 is a memory corruption vulnerability in Linux, published on 30 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:
platform/x86: think-lmi: Fix memory leaks when parsing ThinkStation WMI strings
My previous commit introduced a memory leak where the item allocated from tlmi_setting was not freed. This commit also renames it to avoid confusion with the similarly name variable in the same function.
Which versions are affected by CVE-2023-54252?
How do I fix CVE-2023-54252?
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-2023-54252 being exploited?
There is no known exploitation of CVE-2023-54252 in the wild and no public exploit code.
Sources
Also known as GHSA-ff8m-hq8v-j76h, UBUNTU-CVE-2023-54252.