GSD-2021-1000646 bpf: No need to simulate speculative domain for immediates
A speculative execution bypass in the Linux kernel BPF subsystem allows attackers to potentially circumvent security mitigations.
- 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-2021-1000646?
GSD-2021-1000646 is a vulnerability in Kernel, published on 4 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
bpf: No need to simulate speculative domain for immediates
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 v5.4.123 by commit 3173c7c807854a580c85f04193a6a25aeff3dd96, it was introduced in version by commit . For more details please see the references link.
Which versions are affected by GSD-2021-1000646?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000646?
No fix has been published for GSD-2021-1000646 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000646 being exploited?
There is no known exploitation of GSD-2021-1000646 in the wild and no public exploit code.