CVE-2022-50147 mm/mempolicy: fix get_nodes out of bound access
A local attacker can trigger an out-of-bounds read in the Linux kernel memory policy subsystem, potentially leaking sensitive memory or causing a system crash.
- 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-2022-50147?
CVE-2022-50147 is a high-severity memory corruption vulnerability in Linux kernel, published on 18 Jun 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:
mm/mempolicy: fix get_nodes out of bound access
When user specified more nodes than supported, get_nodes will access nmask array out of bounds.
Weakness: CWE-125
Which versions are affected by CVE-2022-50147?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-50147?
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-2022-50147 being exploited?
There is no known exploitation of CVE-2022-50147 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-50147, GHSA-j6jw-7xwm-q5f5, UBUNTU-CVE-2022-50147.