GSD-2022-1002221 bfq: fix use-after-free in bfq_dispatch_request
A use-after-free vulnerability in the Linux Kernel BFQ scheduler could allow local attackers to execute arbitrary code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Local or same network only
- Victim action needed
- Not stated
- Fix
- None listed
What is GSD-2022-1002221?
GSD-2022-1002221 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.
Official description
bfq: fix use-after-free in bfq_dispatch_request
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 5117c9ff4c2ebae0f5c2c262d42a25a8fbc086e6. For more details please see the references link.
Which versions are affected by GSD-2022-1002221?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002221?
No fix has been published for GSD-2022-1002221 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-2022-1002221 being exploited?
There is no known exploitation of GSD-2022-1002221 in the wild and no public exploit code.