A vulnerability identified as critical has been detected in Linux Kernel up to 6.18.32/7.0.9 . Affected by this issue is the function netc_xmit_ntmp_cmd of the component net . Performing a manipulation of the argument len results in use after free. This vulnerability is reported as CVE-2026-53300 . The attacker must have access to the local network to execute the attack. No exploit exists. You should upgrade the affected component.