GSD-2023-1001373 iommu/amd: Fix pci device refcount leak in ppr_notifier()
A refcount leak in the AMD IOMMU driver can lead to resource exhaustion and denial of service, requiring a kernel patch.
- 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-2023-1001373?
GSD-2023-1001373 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/amd: Fix pci device refcount leak in ppr_notifier()
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 v5.10.163 by commit 03f51c72997559e73b327608f0cccfded715c9a0, it was introduced in version v4.14 by commit daae2d25a4779b272a66ddd01f5810bcee822b9e. For more details please see the references link.
Which versions are affected by GSD-2023-1001373?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1001373?
No fix has been published for GSD-2023-1001373 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-2023-1001373 being exploited?
There is no known exploitation of GSD-2023-1001373 in the wild and no public exploit code.