GSD-2022-1004552 x86/speculation: Fill RSB on vmexit for IBRS
The Linux kernel failed to fill the Return Stack Buffer on VM exit for IBRS, potentially allowing speculative execution attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1004552?
GSD-2022-1004552 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
x86/speculation: Fill RSB on vmexit for IBRS
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 v5.10.133 by commit 4d7f72b6e1bc630bec7e4cd51814bc2b092bf153. For more details please see the references link.
Which versions are affected by GSD-2022-1004552?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1004552?
No fix has been published for GSD-2022-1004552 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1004552 being exploited?
There is no known exploitation of GSD-2022-1004552 in the wild and no public exploit code.