{"action":"Upgrade linux to 6.12.16-1 or later.","affected":[{"fixed":"6.12.16-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["6.12.16-1"],"id":"tcs_01M5NN1QYFVTBSH7W2RT1ZTYN7","modified_at":"2026-09-01T20:05:42.382782983Z","published_at":"2025-02-27T03:15:18.377Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-21777","https://security-tracker.debian.org/tracker/CVE-2025-21777"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-21777#Debian:14/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-21777"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Validate the persistent meta data subbuf array The meta data for a mapped ring buffer contains an array of indexes of a"}