Linux · Linux Kernel · CVE-2021-47271
**Name of the Vulnerable Software and Affected Versions**
Linux kernel (affected versions not specified)
**Description**
The issue is related to a deadlock in the Linux kernel, specifically in the `cdnsp thread irq handler` function. The root cause is the use of `spin lock` and `spin unlock` instructions instead of `spin lock irqsave` and `spin lock irqrestore`. This can lead to a non-responsive CSD lock, causing the system to become unresponsive. The vulnerability can be exploited to cause a denial of service.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.