CVE-2024-45007: char: xillybus: Don't destroy workqueue from work item running on it

First published: Wed Sep 04 2024(Updated: )

In the Linux kernel, the following vulnerability has been resolved: char: xillybus: Don't destroy workqueue from work item running on it Triggered by a kref decrement, destroy_workqueue() may be called from within a work item for destroying its own workqueue. This illegal situation is averted by adding a module-global workqueue for exclusive use of the offending work item. Other work items continue to be queued on per-device workqueues to ensure performance.

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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