CVE-2022-50395 integrity: Fix memory leakage in keyring allocation error path
A memory leak in the Linux kernel keyring allocation error path can lead to resource exhaustion and denial of service.
- 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-2022-50395?
CVE-2022-50395 is a medium-severity denial of service vulnerability in Linux kernel, published on 18 Sep 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:
integrity: Fix memory leakage in keyring allocation error path
Key restriction is allocated in integrity_init_keyring(). However, if keyring allocation failed, it is not freed, causing memory leaks.
Weakness: CWE-401
Which versions are affected by CVE-2022-50395?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-50395?
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-2022-50395 being exploited?
There is no known exploitation of CVE-2022-50395 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-50395, GHSA-prqj-m7rp-hg5q, UBUNTU-CVE-2022-50395.