CVE-2023-54084 ALSA: firewire-digi00x: prevent potential use after free
A use-after-free vulnerability in the Linux kernel's firewire-digi00x driver allows local attackers to potentially execute code or escalate privileges.
- 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-2023-54084?
CVE-2023-54084 is an use after free 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:
ALSA: firewire-digi00x: prevent potential use after free
This code was supposed to return an error code if init_stream() failed, but it instead freed dg00x->rx_stream and returned success. This potentially leads to a use after free.
Which versions are affected by CVE-2023-54084?
How do I fix CVE-2023-54084?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2023-54084 being exploited?
There is no known exploitation of CVE-2023-54084 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2023-54084, DEBIAN-CVE-2023-54084, GHSA-h3h4-ggmf-jjqx, UBUNTU-CVE-2023-54084.