GSD-2022-1002236 ax25: Fix refcount leaks caused by ax25_cb_del()
A refcount leak in the Linux kernel AX.25 protocol implementation can lead to resource 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-2022-1002236?
GSD-2022-1002236 is a memory corruption 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
ax25: Fix refcount leaks caused by ax25_cb_del()
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 v5.4.190 by commit 9e1e088a57c23251f1cfe9601bbd90ade2ea73b9, it was introduced in version v5.4.190 by commit 418993bbaafb0cd48f904ba68eeda052d624c821. For more details please see the references link.
Which versions are affected by GSD-2022-1002236?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002236?
No fix has been published for GSD-2022-1002236 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-2022-1002236 being exploited?
There is no known exploitation of GSD-2022-1002236 in the wild and no public exploit code.