CVE-2026-99231

A flaw was found in the Linux kernel's io_uring subsystem. A race condition in the waitid operation allows a request to be completed and freed while a wake-up handler is still accessing it, leading to a use-after-free vulnerability. A local user could exploit this flaw to cause a system crash, resulting in a Denial of Service (DoS), or potentially execute arbitrary code to escalate privileges.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.