A vulnerability described as critical has been identified in Linux Kernel up to 6.1.174/6.6.139/6.12.85/6.18.26/7.0.3 . Affected is the function io_poll_get_ownership of the component io_uring . Such manipulation leads to insufficient verification of data authenticity. This vulnerability is documented as CVE-2026-52933 . The attack requires being on the local network. There is not any exploit available. Upgrading the affected component is recommended.