{"action":"Upgrade linux to 5.4.6-1 or later.","affected":[{"fixed":"5.4.6-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["5.4.6-1"],"id":"tcs_01M5NFBN72HD2X5JMFPNJ2DVW3","modified_at":"2026-10-23T18:03:24.743270143Z","published_at":"2021-09-27T11:15:07.357Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-20317","https://security-tracker.debian.org/tracker/CVE-2021-20317"],"severity":{"label":"medium","score":4.4},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-20317#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-20317"}],"summary":"A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special use"}