GSD-2023-1000637 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-2023-1000637?
GSD-2023-1000637 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 v6.0.16 by commit 902cc2507091a81643502d8ceb0e2f105e902518, it was introduced in version v4.14 by commit daae2d25a4779b272a66ddd01f5810bcee822b9e. For more details please see the references link.
Which versions are affected by GSD-2023-1000637?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000637?
No fix has been published for GSD-2023-1000637 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-2023-1000637 being exploited?
There is no known exploitation of GSD-2023-1000637 in the wild and no public exploit code.