GSD-2023-1000486 dm thin: Fix ABBA deadlock between shrink_slab and dm_pool_abort_metadata
An ABBA deadlock in the Linux kernel dm thin driver 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-2023-1000486?
GSD-2023-1000486 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 v6.0.18 by commit 2d891cc5a1706b6908bceb56af7176a463ee6d62, it was introduced in version v3.6 by commit e49e582965b3694f07a106adc83ddb44aa4f0890. For more details please see the references link.
Which versions are affected by GSD-2023-1000486?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000486?
No fix has been published for GSD-2023-1000486 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-2023-1000486 being exploited?
There is no known exploitation of GSD-2023-1000486 in the wild and no public exploit code.