GSD-2021-1002729 bpf: Fix kernel address leakage in atomic fetch
A local attacker can leak kernel addresses via BPF atomic fetch operations, potentially aiding further exploits.
- 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-2021-1002729?
GSD-2021-1002729 is a vulnerability in Kernel, published on 27 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
bpf: Fix kernel address leakage in atomic fetch
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 v5.15.11 by commit 423628125a484538111c2c6d9bb1588eb086053b, it was introduced in version v5.12 by commit 37086bfdc737ea6f66bf68dcf16757004d68e1e1. For more details please see the references link.
Which versions are affected by GSD-2021-1002729?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002729?
No fix has been published for GSD-2021-1002729 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1002729 being exploited?
There is no known exploitation of GSD-2021-1002729 in the wild and no public exploit code.