GSD-2022-1002239 bpf, sockmap: Fix double uncharge the mem of sk_msg
A double uncharge of memory in the Linux kernel sockmap can lead to memory corruption and potential denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1002239?
GSD-2022-1002239 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
bpf, sockmap: Fix double uncharge the mem of sk_msg
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 v5.4.189 by commit 94c6ac22abcdede72bfaa0f4c22fb370891f4002, it was introduced in version v4.20 by commit 604326b41a6fb9b4a78b6179335decee0365cd8c. For more details please see the references link.
Which versions are affected by GSD-2022-1002239?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002239?
No fix has been published for GSD-2022-1002239 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-2022-1002239 being exploited?
There is no known exploitation of GSD-2022-1002239 in the wild and no public exploit code.