GSD-2021-1000337 f2fs: fix panic during f2fs_resize_fs()
A local attacker can trigger a kernel panic in the f2fs filesystem during resize operations, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000337?
GSD-2021-1000337 is a denial of service vulnerability in Kernel, published on 31 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
f2fs: fix panic during f2fs_resize_fs()
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 v5.10.38 by commit 1c20a4896409f5ca1c770e1880c33d0a28a8b10f, it was introduced in version v5.8 by commit b4b10061ef98c583bcf82a4200703fbaa98c18dc. For more details please see the references link.
Which versions are affected by GSD-2021-1000337?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000337?
No fix has been published for GSD-2021-1000337 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-2021-1000337 being exploited?
There is no known exploitation of GSD-2021-1000337 in the wild and no public exploit code.