CVE-2026-90232

A flaw was found in the Linux kernel's Address Mapping Table (AMT) device handling. When an AMT device is configured across different network namespaces (netns), unregistering the underlying network device can lead to a system hang. This occurs because the amt_device_event() function does not correctly unregister all associated AMT devices in such a configuration. A local attacker could exploit this to cause a denial of service by making the system unresponsive.

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.