GSD-2022-1000261 powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06
A flaw in the Linux kernel's BPF implementation on PowerPC64 can cause a denial of service on non-compliant processors.
- 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-2022-1000261?
GSD-2022-1000261 is a denial of service vulnerability in Kernel, published on 18 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06
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 v5.15.19 by commit 3bfbc00587dc883eaed383558ae512a351c2cd09, it was introduced in version v4.8 by commit 156d0e290e969caba25f1851c52417c14d141b24. For more details please see the references link.
Which versions are affected by GSD-2022-1000261?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000261?
No fix has been published for GSD-2022-1000261 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-2022-1000261 being exploited?
There is no known exploitation of GSD-2022-1000261 in the wild and no public exploit code.