Lijun Pan

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** The issue is related to the unnecessary destruction of `file ida` in the Linux kernel, specifically in the `dmaengine` subsystem. This can lead to accessing an id in `file ida` after it has been destroyed, resulting in a kernel panic. The problem occurs because `ida free()` in `cdev` release may happen after the destruction of `file ida` per WQ `cdev`. **Recommendations** To address this issue, remove the `ida destroy(&file ida)` call to prevent unnecessary destruction of `file ida`. Update to a version of the Linux kernel that includes this fix, such as version 6.6.37 or later.