Zephyr RTOS Kernel Work Queue Timeout Handling Logic Fix

Vulnerability Overview This vulnerability involves the timeout handling mechanism for kernel work queues. Specifically, when the timeout handler of a work item is canceled, the work item may be incorrectly rescheduled, potentially leading to security issues. Impact Scope Kernel Versions: The affected kernel versions are not explicitly listed, but typically include those utilizing the and functions. Work Queues: All kernel modules employing the work queue mechanism may be affected. Remediation 1. Migration to : - Migrate from the and functions to to improve the timeout handling mechanism. - Within , ensure the correct cancellation of the timeout handler by checking and . 2. Improvement of Timeout Handling Logic: - In , use to replace the original timeout handling logic. - In , utilize to ensure the correct cancellation and rescheduling of work items. 3. Code Changes: - Modify the file, with specific changes including: - In the function, use to replace the original timeout handling logic. - In the function, use to ensure the correct cancellation and rescheduling of work items. POC / Exploit Code No specific POC or exploit code is provided on the page. Summary This vulnerability is addressed by improving the timeout handling mechanism for kernel work queues, ensuring the correct cancellation and rescheduling of timeout handlers to avoid potential security issues. The remediation involves migrating to and enhancing the related timeout handling logic.

Goal Reached Thanks to every supporter — we hit 100%!

Zephyr RTOS Kernel Work Queue Timeout Handling Logic Fix

More from this source