A vulnerability has been found in Linux Kernel up to 6.6.142/6.12.93/6.18.35/7.0.12 and classified as critical . The impacted element is the function smb2_oplock_break_noti of the component ksmbd . This manipulation of the argument conn causes improper locking. This vulnerability is handled as CVE-2026-53271 . The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.