GSD-2022-1007707 blk-cgroup: properly pin the parent in blkcg_css_online
A use-after-free vulnerability in the Linux kernel's blk-cgroup subsystem allows local attackers to potentially escalate privileges or cause a system crash.
- 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-2022-1007707?
GSD-2022-1007707 is an use after free vulnerability in Kernel, published on 8 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
blk-cgroup: properly pin the parent in blkcg_css_online
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 v6.0.10 by commit d118247e404d6338f7b90636a3c6b95a387ed163, it was introduced in version v5.19 by commit 397c9f46ee4d99024c64954b007c1b5762d01cb4. For more details please see the references link.
Which versions are affected by GSD-2022-1007707?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1007707?
No fix has been published for GSD-2022-1007707 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-2022-1007707 being exploited?
There is no known exploitation of GSD-2022-1007707 in the wild and no public exploit code.