GSD-2022-1001539 cxl/port: Hold port reference until decoder release
A use-after-free vulnerability in the Linux Kernel CXL port driver allows local attackers to potentially escalate privileges or cause a system crash.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1001539?
GSD-2022-1001539 is an use after free 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
cxl/port: Hold port reference until decoder release
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 v5.16.19 by commit b0022ca445d5fc4d0c89d15dcd0f855977b22c1d, it was introduced in version v5.14 by commit 40ba17afdfabb01688c61565dbe02a916241bc05. For more details please see the references link.
Which versions are affected by GSD-2022-1001539?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001539?
No fix has been published for GSD-2022-1001539 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is GSD-2022-1001539 being exploited?
There is no known exploitation of GSD-2022-1001539 in the wild and no public exploit code.