GSD-2022-1000747 bpf: Add schedule points in batch ops
A missing schedule point in BPF batch operations can cause system hangs, requiring a kernel patch to prevent local 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-2022-1000747?
GSD-2022-1000747 is a denial of service vulnerability in Kernel, published on 18 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
bpf: Add schedule points in batch ops
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 v5.16.12 by commit 7e8099967d0e3ff9d1ae043e80b27fbe46c08417, it was introduced in version v5.6 by commit aa2e93b8e58e18442edfb2427446732415bc215e. For more details please see the references link.
Which versions are affected by GSD-2022-1000747?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000747?
No fix has been published for GSD-2022-1000747 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-2022-1000747 being exploited?
There is no known exploitation of GSD-2022-1000747 in the wild and no public exploit code.