GSD-2023-1000957 pstore/zone: Use GFP_ATOMIC to allocate zone buffer
A kernel bug in pstore zone buffer allocation could cause a denial of service due to improper memory allocation flags.
- 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-2023-1000957?
GSD-2023-1000957 is a denial of service vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
pstore/zone: Use GFP_ATOMIC to allocate zone buffer
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 v5.15.87 by commit 76d52b54127c65ef7211eb2e638e0ad5cb6c6630, it was introduced in version v5.8 by commit 335426c6dcdd338d6b7c939c2da15fc9c5dd4959. For more details please see the references link.
Which versions are affected by GSD-2023-1000957?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000957?
No fix has been published for GSD-2023-1000957 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-2023-1000957 being exploited?
There is no known exploitation of GSD-2023-1000957 in the wild and no public exploit code.