CVE-2026-23415

A flaw was found in the Linux kernel. A timing issue, known as a race condition, exists within the futex subsystem. This vulnerability could allow a local attacker to access memory after it has been freed, leading to a system crash (denial of service) or potentially the disclosure of sensitive information.

Unprivileged processes routinely use futexes; mbind() on their own mappings is also available without special capability on typical configurations, so the race is not limited to root-only workloads. Minimum impact is abnormal termination or crash; information disclosure from the UAF read is plausible and should be reviewed manually.

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.