{"action":"Upgrade linux to 6.12.63-1 or later.","affected":[{"fixed":"6.12.63-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.12.63-1"],"id":"tcs_01M5NNT2J9DK633SQZ61JK56Q2","modified_at":"2026-10-23T18:04:59.522526795Z","published_at":"2025-11-21T11:15:47Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-40209","https://security-tracker.debian.org/tracker/CVE-2025-40209"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-40209","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-40209"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: btrfs: fix memory leak of qgroup_list in btrfs_add_qgroup_relation When btrfs_add_qgroup_relation() is called with invalid qgroup le"}