kernel: dmaengine: idxd: Fix oops during rmmod on single-CPU platforms

This is a vulnerability in the Linux kernel's Data Movement Accelerator DMA engine, specifically affecting the Intel Data Streaming Accelerator IDXD driver. The issue arises during the removal rmmod of the idxd driver on systems with only one active CPU. In such scenarios, the driver's cleanup...

UBUNTU-CVE-2024-35989

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix oops during rmmod on single-CPU platforms During the removal of the idxd driver, registered offline callback is invoked as part of the clean up process. However, on systems with only one CPU online, no valid...