GSD-2023-1000066 iommu/vt-d: Fix PCI device refcount leak in has_external_pci()
A PCI device refcount leak in the Linux kernel IOMMU driver can lead to resource exhaustion and denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2023-1000066?
GSD-2023-1000066 is a denial of service vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
iommu/vt-d: Fix PCI device refcount leak in has_external_pci()
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.0.12 by commit 17f67414718e6aba123335a33b7d15aa594fff34, it was introduced in version v5.0 by commit 89a6079df791aeace2044ea93be1b397195824ec. For more details please see the references link.
Which versions are affected by GSD-2023-1000066?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000066?
No fix has been published for GSD-2023-1000066 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2023-1000066 being exploited?
There is no known exploitation of GSD-2023-1000066 in the wild and no public exploit code.