CVE-2026-97410

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

netconsole: take target_cleanup_list_lock in drop_netconsole_target()

drop_netconsole_target() unlinks the target while only holding

target_list_lock. However, when the underlying interface has been

unregistered, netconsole_netdev_event() moves the target from

target_list to target_cleanup_list, and netconsole_process_cleanups_core()

walks that list under target_cleanup_list_lock only.

If a user removes the configfs target at the same time the cleanup

worker is iterating target_cleanup_list, list_del() can corrupt the list

because the two paths take disjoint locks while operating on the same

list node.

Acquire target_cleanup_list_lock around the list_del() so the unlink is

serialised against netconsole_process_cleanups_core() regardless of

which list the target currently belongs to. The state transition that

downgrades STATE_DEACTIVATED to STATE_DISABLED is left intact and is

performed under the same combined locki

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References