GSD-2022-1002875 KVM: x86: avoid calling x86 emulator without a decoded instruction
A local attacker can cause a denial of service in the Linux Kernel KVM module by triggering a null pointer dereference in the x86 emulator.
- 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-2022-1002875?
GSD-2022-1002875 is a vulnerability in Kernel, published on 28 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
KVM: x86: avoid calling x86 emulator without a decoded instruction
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 v5.18.2 by commit 02ea15c02befea2539d5f0d6b60ce8df88de418b, it was introduced in version v5.12 by commit 4aa2691dcbd38ce1c461188799d863398dd2865d. For more details please see the references link.
Which versions are affected by GSD-2022-1002875?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002875?
No fix has been published for GSD-2022-1002875 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1002875 being exploited?
There is no known exploitation of GSD-2022-1002875 in the wild and no public exploit code.