GSD-2022-1001893 arm64: prevent instrumentation of bp hardening callbacks
A flaw in the Linux kernel arm64 branch allowed instrumentation of branch prediction hardening callbacks, potentially bypassing security mitigations.
- 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-2022-1001893?
GSD-2022-1001893 is a 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
arm64: prevent instrumentation of bp hardening callbacks
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 v5.15.33 by commit d362998e8df9ada2e9e1b5f5f154959df287402d, it was introduced in version v4.16 by commit ec82b567a74fbdffdf418d4bb381d55f6a9096af. For more details please see the references link.
Which versions are affected by GSD-2022-1001893?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001893?
No fix has been published for GSD-2022-1001893 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1001893 being exploited?
There is no known exploitation of GSD-2022-1001893 in the wild and no public exploit code.