CVE-2022-50462 MIPS: vpe-mt: fix possible memory leak while module exiting
A memory leak in the MIPS vpe-mt module during exit 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-2022-50462?
CVE-2022-50462 is a medium-severity memory corruption vulnerability in Linux kernel, published on 1 Oct 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:
MIPS: vpe-mt: fix possible memory leak while module exiting
Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array"), the name of device is allocated dynamically, it need be freed when module exiting, call put_device() to give up reference, so that it can be freed in kobject_cleanup() when the refcount hit to 0. The vpe_device is static, so remove kfree() from vpe_device_release().
Weakness: CWE-401
Which versions are affected by CVE-2022-50462?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-50462?
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-2022-50462 being exploited?
There is no known exploitation of CVE-2022-50462 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-50462, GHSA-72vp-mgcv-889w, UBUNTU-CVE-2022-50462.