GSD-2021-1001872 kunit: fix reference count leak in kfree_at_end
A reference count leak in the Linux kernel's kunit framework can lead to memory exhaustion and denial of service.
- 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-2021-1001872?
GSD-2021-1001872 is a memory corruption vulnerability in Kernel, published on 28 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
kunit: fix reference count leak in kfree_at_end
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 v5.14.15 by commit bbdd158b40b66a9403391a517f24ef6613573446. For more details please see the references link.
Which versions are affected by GSD-2021-1001872?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001872?
No fix has been published for GSD-2021-1001872 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2021-1001872 being exploited?
There is no known exploitation of GSD-2021-1001872 in the wild and no public exploit code.