{"action":"Upgrade linux to 6.12.57-1 or later.","affected":[{"fixed":"6.12.57-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.12.57-1"],"id":"tcs_01M5NNS1T4J47PWN1T6MGAWNQR","modified_at":"2026-10-23T18:05:06.199886893Z","published_at":"2025-10-30T10:15:34.423Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-40100","https://security-tracker.debian.org/tracker/CVE-2025-40100"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-40100#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-40100"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: btrfs: do not assert we found block group item when creating free space tree Currently, when building a free space tree at populate_"}