GSD-2022-1001044 powerpc/secvar: fix refcount leak in format_show()
A refcount leak in the Linux kernel powerpc secvar format_show function can lead to resource exhaustion and denial of service.
- 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-2022-1001044?
GSD-2022-1001044 is a denial of service vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
powerpc/secvar: fix refcount leak in format_show()
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 v5.17.3 by commit d05e4265d33af60b39606c20c731e3e719bfe3d6. For more details please see the references link.
Which versions are affected by GSD-2022-1001044?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001044?
No fix has been published for GSD-2022-1001044 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-2022-1001044 being exploited?
There is no known exploitation of GSD-2022-1001044 in the wild and no public exploit code.