CVE-2023-54249 bus: mhi: ep: Only send -ENOTCONN status if client driver is available
A null pointer dereference in the Linux kernel MHI endpoint driver can cause a denial of service when handling STOP or RESET commands without an available client driver.
- 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-2023-54249?
CVE-2023-54249 is a vulnerability in Linux, published on 30 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:
bus: mhi: ep: Only send -ENOTCONN status if client driver is available
For the STOP and RESET commands, only send the channel disconnect status -ENOTCONN if client driver is available. Otherwise, it will result in null pointer dereference.
Which versions are affected by CVE-2023-54249?
How do I fix CVE-2023-54249?
Apply the vendor's patch.
Is CVE-2023-54249 being exploited?
There is no known exploitation of CVE-2023-54249 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2023-54249, DEBIAN-CVE-2023-54249, GHSA-6wgg-jc7h-xjpr, UBUNTU-CVE-2023-54249.