Wang Wang

**Name of the Vulnerable Software and Affected Versions** Linux kernel versions prior to 5.6.5 **Description** The issue is related to a use-after-free in the block/bfq-iosched.c file, specifically with the `bfq idle slice timer body` function. This could allow an attacker to impact the confidentiality, integrity, and availability of protected information. **Recommendations** For Linux kernel versions prior to 5.6.5, update to version 5.6.5 or later to resolve the issue. As a temporary workaround, consider restricting access to the `bfq idle slice timer body` function until a patch is available.