CVE-2026-52996 | Linux Kernel up to 6.6.140/6.12.90/6.18.32/7.0.9 ksmbd ksmbd_lookup_fd_cguid fp memory leak

A vulnerability was found in Linux Kernel up to 6.6.140/6.12.90/6.18.32/7.0.9. It has been classified as critical. The affected element is the function ksmbd_lookup_fd_cguid of the component ksmbd. This manipulation of the argument fp causes memory leak.

This vulnerability is tracked as CVE-2026-52996. The attack is only possible within the local network. No exploit exists.

Upgrading the affected component is recommended.