CVE-2026-99169

A flaw was found in the Linux kernel's futex (fast userspace mutex) subsystem. A local user can cause a Denial of Service (DoS) by exploiting improper handling of shared waiters when memory is reused. By requeuing synchronization waiters across different memory contexts, a waiter tied to freed memory can intercept wakeups intended for newly allocated memory at the same address, causing threads to deadlock or hang indefinitely.

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.