GSD-2022-1007433 ext4: avoid crash when inline data creation follows DIO write
A local attacker can cause a system crash in the Linux kernel ext4 filesystem by triggering a specific sequence of direct I/O writes and inline data creation.
- 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-2022-1007433?
GSD-2022-1007433 is a denial of service vulnerability in Kernel, published on 14 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ext4: avoid crash when inline data creation follows DIO write
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 v5.4.220 by commit a22f52d883313bbfaf864669c14003f9456d4f8f. For more details please see the references link.
Which versions are affected by GSD-2022-1007433?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1007433?
No fix has been published for GSD-2022-1007433 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-2022-1007433 being exploited?
There is no known exploitation of GSD-2022-1007433 in the wild and no public exploit code.