GSD-2021-1000298 KVM: SVM: Use online_vcpus, not created_vcpus, to iterate over vCPUs
A logic error in KVM SVM vCPU iteration could lead to instability or denial of service, requiring kernel patching.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000298?
GSD-2021-1000298 is a vulnerability in Kernel, published on 31 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
KVM: SVM: Use online_vcpus, not created_vcpus, to iterate over vCPUs
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 v5.12.4 by commit ba7bf5d6336aa9c0d977b161bfa420c56d46ee40, it was introduced in version v5.11 by commit ad73109ae7ec30d5bfb76be108e304f9f0af4829. For more details please see the references link.
Which versions are affected by GSD-2021-1000298?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000298?
No fix has been published for GSD-2021-1000298 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000298 being exploited?
There is no known exploitation of GSD-2021-1000298 in the wild and no public exploit code.