GSD-2022-1000896 xen/xenbus: don't let xenbus_grant_ring() remove grants in error case
A flaw in the Linux Kernel Xen bus driver could allow a privileged local attacker to cause a denial of service by triggering an error case in grant ring removal.
- 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-2022-1000896?
GSD-2022-1000896 is a vulnerability in Kernel, published on 18 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
xen/xenbus: don't let xenbus_grant_ring() remove grants in error case
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 v4.19.234 by commit 8d521d960aef22781ff499e16899c30af899de8d. For more details please see the references link.
Which versions are affected by GSD-2022-1000896?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000896?
No fix has been published for GSD-2022-1000896 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1000896 being exploited?
There is no known exploitation of GSD-2022-1000896 in the wild and no public exploit code.