GSD-2021-1002835 KVM: VMX: Always clear vmx->fail on emulation_required
A logic error in KVM VMX emulation handling could lead to a denial of service, requiring local access with high privileges to exploit.
- 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-2021-1002835?
GSD-2021-1002835 is a vulnerability in Kernel, published on 30 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
KVM: VMX: Always clear vmx->fail on emulation_required
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 v5.15.12 by commit e4e4e7cb229821cd215031abc47efdab5486a67c, it was introduced in version v5.15 by commit c8607e4a086fae05efe5bffb47c5199c65e7216e. For more details please see the references link.
Which versions are affected by GSD-2021-1002835?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002835?
No fix has been published for GSD-2021-1002835 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1002835 being exploited?
There is no known exploitation of GSD-2021-1002835 in the wild and no public exploit code.