GSD-2022-1003697 ext4: fix bug_on in ext4_writepages
A bug in the ext4 filesystem writepages function can cause a kernel crash, leading to denial of service for local attackers.
- 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-2022-1003697?
GSD-2022-1003697 is a denial of service vulnerability in Kernel, published on 28 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ext4: fix bug_on in ext4_writepages
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 v5.4.198 by commit 73fd5b19285197078ee8a2e651d75d5b094a4de9. For more details please see the references link.
Which versions are affected by GSD-2022-1003697?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1003697?
No fix has been published for GSD-2022-1003697 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-2022-1003697 being exploited?
There is no known exploitation of GSD-2022-1003697 in the wild and no public exploit code.