CVE-2021-47374

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to the dma-debug feature in the Linux kernel, which can cause runtime problems for some drivers using the DMA API. The error message can be reached several million times per second, leading to spam in the kernel's printk buffer and high CPU usage. To address this, the error message is now handled using err printk() instead of rate limiting, making it easier to identify drivers that suffer from this issue.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.