GSD-2022-1001122 KVM: x86/mmu: do compare-and-exchange of gPTE via the user address
A memory corruption vulnerability in the Linux Kernel KVM module allows local attackers to potentially escalate privileges or execute code.
- 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-2022-1001122?
GSD-2022-1001122 is a memory corruption 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
KVM: x86/mmu: do compare-and-exchange of gPTE via the user address
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 v5.17.2 by commit 5051c04d70c6e035c2c923c04fbe015a4468b08d, it was introduced in version v5.2 by commit bd53cb35a3e9adb73a834a36586e9ad80e877767. For more details please see the references link.
Which versions are affected by GSD-2022-1001122?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001122?
No fix has been published for GSD-2022-1001122 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2022-1001122 being exploited?
There is no known exploitation of GSD-2022-1001122 in the wild and no public exploit code.