{"action":"Upgrade linux to 6.1.128-1 or later.","affected":[{"fixed":"6.1.128-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.1.128-1"],"id":"tcs_01M5NN069NHSWJ3X6VM6SWJXQV","modified_at":"2026-09-01T20:05:41.825962292Z","published_at":"2025-01-19T11:15:07.667Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-21631","https://security-tracker.debian.org/tracker/CVE-2025-21631"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-21631","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-21631"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix waker_bfqq UAF after bfq_split_bfqq() Our syzkaller report a following UAF for v6.6: BUG: KASAN: slab-use-after-free"}