GSD-2023-1000161 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-2023-1000161?
GSD-2023-1000161 is a memory corruption 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 v5.15.82 by commit b6eea8b2e858a20ad58ac62dc2de90fea2413f94, it was introduced in version v5.0 by commit 89a6079df791aeace2044ea93be1b397195824ec. For more details please see the references link.
Which versions are affected by GSD-2023-1000161?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000161?
No fix has been published for GSD-2023-1000161 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2023-1000161 being exploited?
There is no known exploitation of GSD-2023-1000161 in the wild and no public exploit code.