GSD-2022-1005221 powerpc/perf: Optimize clearing the pending PMI and remove WARN_ON for PMI check in power_pmu_disable
A flaw in the Linux kernel's powerpc performance monitoring unit could lead to a denial of service via kernel warnings or crashes.
- 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-2022-1005221?
GSD-2022-1005221 is a denial of service vulnerability in Kernel, published on 16 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
powerpc/perf: Optimize clearing the pending PMI and remove WARN_ON for PMI check in power_pmu_disable
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 v5.19.2 by commit 7e83af3dd4a3afca8f83ffde518cafd52f45b830, it was introduced in version v5.17 by commit 2c9ac51b850d84ee496b0a5d832ce66d411ae552. For more details please see the references link.
Which versions are affected by GSD-2022-1005221?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1005221?
No fix has been published for GSD-2022-1005221 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2022-1005221 being exploited?
There is no known exploitation of GSD-2022-1005221 in the wild and no public exploit code.