{"action":"Upgrade linux to 6.19.12-1 or later.","affected":[{"fixed":"6.19.12-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["6.19.12-1"],"id":"tcs_01M5NRJJA57JKP5HZHC3DV7F0W","modified_at":"2026-10-15T09:47:44.570946245Z","published_at":"2026-04-13T14:16:11.740Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-31421","https://security-tracker.debian.org/tracker/CVE-2026-31421"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-31421#Debian:14/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-31421"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_fw: fix NULL pointer dereference on shared blocks The old-method path in fw_classify() calls tcf_block_q() and derefe"}