GSD-2023-1000937 dm thin: Fix ABBA deadlock between shrink_slab and dm_pool_abort_metadata
A deadlock in the Linux kernel's device-mapper thin provisioning can cause a system hang, requiring a kernel patch to resolve.
- 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-2023-1000937?
GSD-2023-1000937 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
dm thin: Fix ABBA deadlock between shrink_slab and dm_pool_abort_metadata
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 f8c26c33fef588ee54852cffa7cbb9f9d9869405, it was introduced in version v3.6 by commit e49e582965b3694f07a106adc83ddb44aa4f0890. For more details please see the references link.
Which versions are affected by GSD-2023-1000937?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000937?
No fix has been published for GSD-2023-1000937 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-2023-1000937 being exploited?
There is no known exploitation of GSD-2023-1000937 in the wild and no public exploit code.