GSD-2021-1002178 powerpc/idle: Don't corrupt back chain when going idle
A memory corruption flaw in the Linux kernel's powerpc idle path can lead to system crashes or potential code execution.
- 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-2021-1002178?
GSD-2021-1002178 is a memory corruption vulnerability in Kernel, published on 14 Nov 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
powerpc/idle: Don't corrupt back chain when going idle
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 by commit 496c5fe25c377ddb7815c4ce8ecfb676f051e9b6, it was introduced in version v5.15 by commit 9b4416c5095c20e110c82ae602c254099b83b72f. For more details please see the references link.
Which versions are affected by GSD-2021-1002178?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002178?
No fix has been published for GSD-2021-1002178 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2021-1002178 being exploited?
There is no known exploitation of GSD-2021-1002178 in the wild and no public exploit code.