{"action":"Upgrade linux to 6.1.20-1 or later.","affected":[{"fixed":"6.1.20-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.1.20-1"],"id":"tcs_01M5NJTMVV8BDG99RB02CS58VN","modified_at":"2026-10-23T17:47:42.716403723Z","published_at":"2025-12-09T01:16:52.940Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-53809","https://security-tracker.debian.org/tracker/CVE-2023-53809"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-53809","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-53809"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tp_tunnel_register() When a file descriptor of pppol2tp socket is passed as file descri"}