{"action":"Upgrade linux to 6.1.159-1 or later.","affected":[{"fixed":"6.1.159-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.1.159-1"],"id":"tcs_01M5NNTE1TZP2AZFAFBCTFV9XH","modified_at":"2026-10-23T18:04:36.417918756Z","published_at":"2025-12-04T16:16:18.937Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-40253","https://security-tracker.debian.org/tracker/CVE-2025-40253"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-40253","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-40253"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: s390/ctcm: Fix double-kfree The function 'mpc_rcvd_sweep_req(mpcginfo)' is called conditionally from function 'ctcmpc_unpack_skb'. I"}