GSD-2021-1000788 x86/kvm: Disable all PV features on crash
A flaw in the Linux Kernel KVM module could lead to a denial of service during a crash, requiring a kernel patch to disable paravirtualization features.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Not stated
- Victim action needed
- Not stated
- Fix
- None listed
What is GSD-2021-1000788?
GSD-2021-1000788 is a denial of service vulnerability in Kernel, published on 25 Jun 2021.
Official description
x86/kvm: Disable all PV features on crash
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 v5.10.43 by commit 334c59d58de5faf449d9c9feaa8c50dd8b4046a7, it was introduced in version by commit . For more details please see the references link.
Which versions are affected by GSD-2021-1000788?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000788?
No fix has been published for GSD-2021-1000788 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-2021-1000788 being exploited?
There is no known exploitation of GSD-2021-1000788 in the wild and no public exploit code.