CVE-2025-68364 ocfs2: relax BUG() to ocfs2_error() in __ocfs2_move_extent()
A local attacker can crash the Linux kernel by triggering a filesystem corruption in the OCFS2 module, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-68364?
CVE-2025-68364 is a denial of service vulnerability in Linux, published on 24 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:
ocfs2: relax BUG() to ocfs2_error() in __ocfs2_move_extent()
In '__ocfs2_move_extent()', relax 'BUG()' to 'ocfs2_error()' just to avoid crashing the whole kernel due to a filesystem corruption.
Which versions are affected by CVE-2025-68364?
How do I fix CVE-2025-68364?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-68364 being exploited?
There is no known exploitation of CVE-2025-68364 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2025-68364, DEBIAN-CVE-2025-68364, GHSA-xfqp-957r-4xp3, ROOT-OS-DEBIAN-12-CVE-2025-68364, ROOT-OS-DEBIAN-13-CVE-2025-68364, ROOT-OS-UBUNTU-2204-CVE-2025-68364 and 2 more.