GSD-2021-1001875 powerpc/idle: Don't corrupt back chain when going idle
A memory corruption issue in the Linux kernel's powerpc idle path can lead to system crashes or potential code execution, requiring a kernel patch.
- 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-2021-1001875?
GSD-2021-1001875 is a memory corruption vulnerability in Kernel, published on 28 Oct 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 v5.14.15 by commit 65ede7bd97138435c07de602efc8812c586a1d38, it was introduced in version v5.14.15 by commit 6d077c37c4643394b1bae9682da48164fc147ea8. For more details please see the references link.
Which versions are affected by GSD-2021-1001875?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001875?
No fix has been published for GSD-2021-1001875 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-2021-1001875 being exploited?
There is no known exploitation of GSD-2021-1001875 in the wild and no public exploit code.