CVE-2024-50184 virtio_pmem: Check device status before requesting flush
A missing status check in the Linux kernel virtio_pmem driver allows a malicious host to cause a system hang, resulting in 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-2024-50184?
CVE-2024-50184 is a medium-severity denial of service vulnerability in Linux kernel, published on 8 Nov 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:
virtio_pmem: Check device status before requesting flush
If a pmem device is in a bad status, the driver side could wait for host ack forever in virtio_pmem_flush(), causing the system to hang.
So add a status check in the beginning of virtio_pmem_flush() to return early if the device is not activated.
Weakness: CWE-754
Which versions are affected by CVE-2024-50184?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-50184?
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-2024-50184 being exploited?
There is no known exploitation of CVE-2024-50184 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-50184, DEBIAN-CVE-2024-50184, GHSA-c9qp-272q-mvf9, UBUNTU-CVE-2024-50184.