GSD-2022-1000629 powerpc/perf: Fix power_pmu_disable to call clear_pmi_irq_pending only if PMI is pending
A race condition in the Linux kernel's powerpc performance monitoring subsystem can lead to a denial of service.
- 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-2022-1000629?
GSD-2022-1000629 is a vulnerability in Kernel, published on 27 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
powerpc/perf: Fix power_pmu_disable to call clear_pmi_irq_pending only if PMI is pending
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 v5.16.5 by commit fa4ad064a6bd49208221df5e62adf27b426d1720, it was introduced in version v5.16.3 by commit 215a90ce3754fe509efbce6b73a4bb643c7e7528. For more details please see the references link.
Which versions are affected by GSD-2022-1000629?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000629?
No fix has been published for GSD-2022-1000629 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1000629 being exploited?
There is no known exploitation of GSD-2022-1000629 in the wild and no public exploit code.