{"action":"Upgrade linux to 5.10.218-1 or later.","affected":[{"fixed":"5.10.218-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:11","exploited":false,"fixed_versions":["5.10.218-1"],"id":"tcs_01M5NG1ZHG7AJ8JPMJC4E585Q7","modified_at":"2026-08-27T23:04:11.262066844Z","published_at":"2024-06-25T15:15:11.137Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-4440","https://security-tracker.debian.org/tracker/CVE-2021-4440"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-4440","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-4440"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: x86/xen: Drop USERGS_SYSRET64 paravirt call commit afd30525a659ac0ae0904f0cb4a2ca75522c3123 upstream. USERGS_SYSRET64 is used to ret"}