CVE-2026-31511

A flaw was found in the Bluetooth Management (MGMT) component of the Linux kernel. An issue with how memory is managed during certain operations can lead to a 'dangling pointer' vulnerability. This means that the system might attempt to access memory that has already been released, potentially causing system instability or a denial of service.

The MGMT pending command list is now validated before kfree() so canceled commands cannot leave dangling list entries traversed on power-off. Red Hat recommends kernel updates for Bluetooth management users. Unload bluetooth if RF management is not needed.

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.

To mitigate this issue, prevent the bluetooth module from being loaded. See https://access.redhat.com/solutions/41278 for instructions.