GSD-2021-1000218 f2fs: fix to avoid touching checkpointed data in get_victim()
A bug in the f2fs filesystem could cause corruption or instability when accessing checkpointed data, requiring a kernel patch.
- 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-2021-1000218?
GSD-2021-1000218 is a 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 to avoid touching checkpointed data in get_victim()
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 v5.12.5 by commit 211372b2571520e394b56b431a0705586013b3ff, it was introduced in version v4.20 by commit 4354994f097d068a894aa1a0860da54571df3582. For more details please see the references link.
Which versions are affected by GSD-2021-1000218?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000218?
No fix has been published for GSD-2021-1000218 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000218 being exploited?
There is no known exploitation of GSD-2021-1000218 in the wild and no public exploit code.