GSD-2022-1002423 ext4: don't BUG if someone dirty pages without asking ext4 first
A local attacker with high privileges can trigger a kernel BUG by dirtying pages without ext4 consent, causing a system crash.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1002423?
GSD-2022-1002423 is a denial of service vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ext4: don't BUG if someone dirty pages without asking ext4 first
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 v4.14.276 by commit d666dfaa571465a19f014534a214c255ea33f301. For more details please see the references link.
Which versions are affected by GSD-2022-1002423?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002423?
No fix has been published for GSD-2022-1002423 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-2022-1002423 being exploited?
There is no known exploitation of GSD-2022-1002423 in the wild and no public exploit code.