GSD-2022-1002321 iommu/arm-smmu-v3: fix event handling soft lockup
A soft lockup in the ARM SMMUv3 event handling can cause a denial of service in the Linux kernel.
- 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-2022-1002321?
GSD-2022-1002321 is a denial of service vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
iommu/arm-smmu-v3: fix event handling soft lockup
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 v4.19.238 by commit b58e90be71733a11e0c3d0237d48934a8c7f3ad2. For more details please see the references link.
Which versions are affected by GSD-2022-1002321?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002321?
No fix has been published for GSD-2022-1002321 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-2022-1002321 being exploited?
There is no known exploitation of GSD-2022-1002321 in the wild and no public exploit code.