GSD-2022-1000656 btrfs: fix use-after-free after failure to create a snapshot
A use-after-free vulnerability in the Linux kernel btrfs filesystem allows local attackers to potentially execute code or escalate privileges.
- 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-2022-1000656?
GSD-2022-1000656 is an use after free vulnerability in Kernel, published on 27 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
btrfs: fix use-after-free after failure to create a snapshot
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 v5.16.8 by commit 9372fa1d73da5f1673921e365d0cd2c27ec7adc2. For more details please see the references link.
Which versions are affected by GSD-2022-1000656?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000656?
No fix has been published for GSD-2022-1000656 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-2022-1000656 being exploited?
There is no known exploitation of GSD-2022-1000656 in the wild and no public exploit code.