CVE-2026-63823

A flaw was found in the Linux kernel. A use-after-free vulnerability exists in the handling of request_key_auth payloads. This flaw occurs when the system attempts to use a key authorization payload after it has been released, which can lead to system instability or crashes. A local attacker could potentially exploit this to cause a denial of service or escalate their 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.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.