CVE-2025-68805 fuse: fix io-uring list corruption for terminated non-committed requests
A use-after-free vulnerability in the Linux kernel's FUSE io-uring implementation allows attackers to cause list corruption, potentially leading to code execution or privilege escalation.
- 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-2025-68805?
CVE-2025-68805 is a high-severity use after free vulnerability in Linux, published on 13 Jan 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:
fuse: fix io-uring list corruption for terminated non-committed requests
When a request is terminated before it has been committed, the request is not removed from the queue's list. This leaves a dangling list entry that leads to list corruption and use-after-free issues.
Remove the request from the queue's list for terminated non-committed requests.
Which versions are affected by CVE-2025-68805?
How do I fix CVE-2025-68805?
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-2025-68805 being exploited?
There is no known exploitation of CVE-2025-68805 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2025-68805, DEBIAN-CVE-2025-68805, GHSA-264m-hxmc-hwjf, UBUNTU-CVE-2025-68805.