CVE-2022-50176 drm/mcde: Fix refcount leak in mcde_dsi_bind

Medium 5.5 Published Updated

A reference count leak in the Linux kernel MCDE DSI driver 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-2022-50176?

CVE-2022-50176 is a medium-severity 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:

drm/mcde: Fix refcount leak in mcde_dsi_bind

Every iteration of for_each_available_child_of_node() decrements the reference counter of the previous node. There is no decrement when break out from the loop and results in refcount leak. Add missing of_node_put() to fix this.

Which versions are affected by CVE-2022-50176?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-50176?

Apply the vendor's patch.

Is CVE-2022-50176 being exploited?

There is no known exploitation of CVE-2022-50176 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-50176, GHSA-jrgx-v33c-5f8g, UBUNTU-CVE-2022-50176.

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