CVE-2026-92484 cxl/region: Fix use-after-free in find_pos_and_ways() error path
A use-after-free in the Linux kernel CXL region driver allows local attackers with high privileges to potentially execute code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-92484?
CVE-2026-92484 is an use after free vulnerability in Linux, published on 17 Sep 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:
cxl/region: Fix use-after-free in find_pos_and_ways() error path
The error path releases its reference to a switch decoder before logging an error that includes the decoder name. If the released reference is the last one, the decoder can be freed before the error message accesses its name.
Drop the reference after the error is reported.
Which versions are affected by CVE-2026-92484?
How do I fix CVE-2026-92484?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-92484 being exploited?
There is no known exploitation of CVE-2026-92484 in the wild and no public exploit code.
Sources
Also known as AZL-102180, BELL-CVE-2026-92484, DEBIAN-CVE-2026-92484, GHSA-wqjr-928r-pqhq, UBUNTU-CVE-2026-92484.