CVE-2024-44994 iommu: Restore lost return in iommu_report_device_fault()
A missing return statement in the Linux kernel IOMMU fault handler causes a crash when processing partial faults, leading to 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-2024-44994?
CVE-2024-44994 is a high-severity vulnerability in Linux kernel, published on 4 Sep 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:
iommu: Restore lost return in iommu_report_device_fault()
When iommu_report_device_fault gets called with a partial fault it is supposed to collect the fault into the group and then return.
Instead the return was accidently deleted which results in trying to process the fault and an eventual crash.
Deleting the return was a typo, put it back.
Which versions are affected by CVE-2024-44994?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-44994?
Apply the vendor's patch.
Is CVE-2024-44994 being exploited?
There is no known exploitation of CVE-2024-44994 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-44994, DEBIAN-CVE-2024-44994, GHSA-7hqv-cx6x-h3c9, UBUNTU-CVE-2024-44994.