GSD-2022-1004562 KVM: x86: Fully initialize 'struct kvm_lapic_irq' in kvm_pv_kick_cpu_op()
A guest user can potentially read uninitialized kernel memory via the KVM PV kick CPU operation, requiring a local guest context.
- 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-2022-1004562?
GSD-2022-1004562 is a vulnerability in Kernel, published on 31 Jul 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
KVM: x86: Fully initialize 'struct kvm_lapic_irq' in kvm_pv_kick_cpu_op()
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 v5.10.132 by commit eb58fd350a851b5cda9f4c9a2cefb15c7ccf33f3, it was introduced in version v3.18 by commit a183b638b61c104920a42b1eb7668953f8ada5cb. For more details please see the references link.
Which versions are affected by GSD-2022-1004562?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1004562?
No fix has been published for GSD-2022-1004562 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1004562 being exploited?
There is no known exploitation of GSD-2022-1004562 in the wild and no public exploit code.