GSD-2022-1007872 gfs2: Check sb_bsize_shift after reading superblock
Missing validation of block size shift in GFS2 superblock can lead to kernel crash or denial of service.
- 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-2022-1007872?
GSD-2022-1007872 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 v5.15.80 by commit 28275a7c84d21c55ab3282d897f284d8d527173c. For more details please see the references link.
Which versions are affected by GSD-2022-1007872?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1007872?
No fix has been published for GSD-2022-1007872 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-2022-1007872 being exploited?
There is no known exploitation of GSD-2022-1007872 in the wild and no public exploit code.