{"action":"Upgrade linux-6.12 to 6.12.111-1~deb12u1 or later.","affected":[{"fixed":"6.12.111-1~deb12u1","introduced":"0"}],"component":"linux-6.12","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.12.111-1~deb12u1"],"id":"tcs_01M5NW93PDTAVEZFAKYK9E6JJ2","modified_at":"2026-10-31T10:02:12.333969764Z","published_at":"2026-09-11T20:19:50.223Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-89644","https://security-tracker.debian.org/tracker/CVE-2026-89644"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-89644#Debian:12/linux-6.12","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-89644"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: btrfs: fix extent map leak in NOCOW direct I/O write btrfs_dio_iomap_begin() calls btrfs_get_extent(), which returns an extent map r"}