GSD-2023-1000293 iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init()
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-2023-1000293?
GSD-2023-1000293 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 dmar_dev_scope_init()
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 v5.4.226 by commit cbdd83bd2fd67142b03ce9dbdd1eab322ff7321f, it was introduced in version v3.15 by commit 2e45528930388658603ea24d49cf52867b928d3e. For more details please see the references link.
Which versions are affected by GSD-2023-1000293?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000293?
No fix has been published for GSD-2023-1000293 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-2023-1000293 being exploited?
There is no known exploitation of GSD-2023-1000293 in the wild and no public exploit code.