CVE-2023-54109 media: rcar_fdp1: Fix refcount leak in probe and remove function

Not scored Published 24 Dec 2025 Updated 11 May 2026

A refcount leak in the rcar_fdp1 media driver can lead to resource exhaustion and 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-2023-54109?

CVE-2023-54109 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:

media: rcar_fdp1: Fix refcount leak in probe and remove function

rcar_fcp_get() take reference, which should be balanced with rcar_fcp_put(). Add missing rcar_fcp_put() in fdp1_remove and the error paths of fdp1_probe() to fix this.

[hverkuil: resolve merge conflict, remove() is now void]

Which versions are affected by CVE-2023-54109?

How do I fix CVE-2023-54109?

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-2023-54109 being exploited?

There is no known exploitation of CVE-2023-54109 in the wild and no public exploit code.

Sources

Also known as BELL-CVE-2023-54109, DEBIAN-CVE-2023-54109, GHSA-mgj8-vp8h-hv58, UBUNTU-CVE-2023-54109.