GSD-2021-1000158 vhost-vdpa: fix vm_flags for virtqueue doorbell mapping
A flaw in Linux kernel vhost-vdpa doorbell mapping allows local attackers to potentially escalate privileges or execute code via memory corruption.
- 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-2021-1000158?
GSD-2021-1000158 is a memory corruption vulnerability in Kernel, published on 31 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
vhost-vdpa: fix vm_flags for virtqueue doorbell mapping
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 v5.10.36 by commit 3b8b6399666a29daa30b0bb3f5c9e3fc81c5a6a6, it was introduced in version v5.8 by commit ddd89d0a059d8e9740c75a97e0efe9bf07ee51f9. For more details please see the references link.
Which versions are affected by GSD-2021-1000158?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000158?
No fix has been published for GSD-2021-1000158 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-2021-1000158 being exploited?
There is no known exploitation of GSD-2021-1000158 in the wild and no public exploit code.