GSD-2022-1000976 block: null_blk: end timed out poll request
A bug in the Linux kernel null_blk driver causes timed-out poll requests to hang, potentially leading to a denial of service.
- 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-2022-1000976?
GSD-2022-1000976 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
block: null_blk: end timed out poll request
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 v5.17.4 by commit 407d09a22f3f685fd634aa5d05840c64b23bfebc, it was introduced in version v5.16 by commit 0a593fbbc245a85940ed34caa3aa1e4cb060c54b. For more details please see the references link.
Which versions are affected by GSD-2022-1000976?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000976?
No fix has been published for GSD-2022-1000976 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-2022-1000976 being exploited?
There is no known exploitation of GSD-2022-1000976 in the wild and no public exploit code.