{"action":"Upgrade linux to 5.4.8-1 or later.","affected":[{"fixed":"5.4.8-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["5.4.8-1"],"id":"tcs_01M5NE54D9S47X5MWPH5G3SH79","modified_at":"2026-09-21T07:02:32.656248601Z","published_at":"2020-06-03T03:15:10.597Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2019-20812","https://security-tracker.debian.org/tracker/CVE-2019-20812"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2019-20812","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2019-20812"}],"summary":"An issue was discovered in the Linux kernel before 5.4.7. The prb_calc_retire_blk_tmo() function in net/packet/af_packet.c can result in a denial of service (CPU consumption and soft lockup) in a cert"}