{"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_01M5NNRRNGW8AB1JZ88PW8EPS6","modified_at":"2026-10-31T10:00:42.251729208Z","published_at":"2025-10-28T12:15:42.053Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-40075","https://security-tracker.debian.org/tracker/CVE-2025-40075"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-40075#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-40075"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: tcp_metrics: use dst_dev_net_rcu() Replace three dst_dev() with a lockdep enabled helper."}