GSD-2021-1000022 KVM: VMX: Don't use vcpu->run->internal.ndata as an array index
A flaw in KVM VMX handling could allow a local attacker to cause a denial of service by triggering an invalid array index access.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000022?
GSD-2021-1000022 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: VMX: Don't use vcpu->run->internal.ndata as an array index
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 v5.10.32 by commit 7f64753835a78c7d2cc2932a5808ef3b7fd4c050, it was introduced in version v5.9 by commit 1aa561b1a4c0ae2a9a9b9c21a84b5ca66b4775d8. For more details please see the references link.
Which versions are affected by GSD-2021-1000022?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000022?
No fix has been published for GSD-2021-1000022 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000022 being exploited?
There is no known exploitation of GSD-2021-1000022 in the wild and no public exploit code.