GSD-2022-1006188 KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0
A local attacker with high privileges can cause a kernel crash by injecting an interrupt when the Global Interrupt Flag is disabled.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1006188?
GSD-2022-1006188 is a denial of service vulnerability in Kernel, published on 17 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0
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 v4.19.256 by commit c3396c1c8b87510f2ac2a674948156577559d42d, it was introduced in version v2.6.32 by commit 219b65dcf6c0bad83d51bfa12e25891c02de2414. For more details please see the references link.
Which versions are affected by GSD-2022-1006188?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1006188?
No fix has been published for GSD-2022-1006188 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-2022-1006188 being exploited?
There is no known exploitation of GSD-2022-1006188 in the wild and no public exploit code.