CVE-2026-23405
Description
A flaw was found in the AppArmor security module within the Linux kernel. A local user could exploit this vulnerability by creating and nesting policy namespaces without limit. This unbounded nesting can lead to the exhaustion of system resources, resulting in a Denial of Service (DoS) for the affected system.
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
When allocating resources without limits, an attacker could prevent other systems, applications, or processes from accessing the same type of resource. It can be easy for an attacker to consume many resources by rapidly making many requests or causing larger resources to be used than is needed.
Frequently Asked Questions
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