GSD-2022-1008275 gfs2: Check sb_bsize_shift after reading superblock
A missing validation in the GFS2 filesystem allows a local attacker to cause a denial of service by mounting a crafted filesystem image.
- 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-2022-1008275?
GSD-2022-1008275 is a denial of service 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
gfs2: Check sb_bsize_shift after reading superblock
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 v4.14.300 by commit 1ad197097343568066a8ffaa27ee7d0ae6d9f476. For more details please see the references link.
Which versions are affected by GSD-2022-1008275?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1008275?
No fix has been published for GSD-2022-1008275 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2022-1008275 being exploited?
There is no known exploitation of GSD-2022-1008275 in the wild and no public exploit code.