GSD-2022-1008127 gfs2: Check sb_bsize_shift after reading superblock
A missing validation in the GFS2 filesystem superblock reading can lead to a kernel crash, requiring a local attacker to mount a crafted filesystem.
- 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-2022-1008127?
GSD-2022-1008127 is a 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 v5.4.225 by commit 8b6534c9ae9dba5489703a19d8ba6c8f2cfa33c2. For more details please see the references link.
Which versions are affected by GSD-2022-1008127?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1008127?
No fix has been published for GSD-2022-1008127 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1008127 being exploited?
There is no known exploitation of GSD-2022-1008127 in the wild and no public exploit code.