GSD-2022-1001760 ubifs: Fix to add refcount once page is set private
A refcounting error in the UBIFS filesystem can lead to use-after-free conditions, potentially causing system crashes or privilege escalation.
- 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-2022-1001760?
GSD-2022-1001760 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
ubifs: Fix to add refcount once page is set private
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 v5.15.33 by commit 4f75bab98565afd4f905059c56ec4caba88a7eec, it was introduced in version v2.6.27 by commit 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d. For more details please see the references link.
Which versions are affected by GSD-2022-1001760?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001760?
No fix has been published for GSD-2022-1001760 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-2022-1001760 being exploited?
There is no known exploitation of GSD-2022-1001760 in the wild and no public exploit code.