{"action":"Upgrade linux to 6.1.158-1 or later.","affected":[{"fixed":"6.1.158-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.1.158-1"],"id":"tcs_01M5NNT0RDEWCMYFMF375VHXC2","modified_at":"2026-10-23T18:04:36.385414028Z","published_at":"2025-11-12T22:15:47.647Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-40204","https://security-tracker.debian.org/tracker/CVE-2025-40204"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-40204","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-40204"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: sctp: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropria"}