CVE-2024-27054 s390/dasd: fix double module refcount decrement
A double module refcount decrement in the s390/dasd driver can lead to resource management errors and potential 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-2024-27054?
CVE-2024-27054 is a medium-severity vulnerability in Linux kernel, published on 1 May 2024. 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:
s390/dasd: fix double module refcount decrement
Once the discipline is associated with the device, deleting the device takes care of decrementing the module's refcount. Doing it manually on this error path causes refcount to artificially decrease on each error while it should just stay the same.
Which versions are affected by CVE-2024-27054?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-27054?
Apply the vendor's patch.
Is CVE-2024-27054 being exploited?
There is no known exploitation of CVE-2024-27054 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-27054, DEBIAN-CVE-2024-27054, GHSA-hm79-2xvr-6jv4, ROOT-OS-DEBIAN-11-CVE-2024-27054, UBUNTU-CVE-2024-27054.