{"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_01M5NNRV6DPPFGHFAETGHQ3T2Z","modified_at":"2026-10-23T18:04:36.126092997Z","published_at":"2025-10-29T14:15:54.900Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-40083","https://security-tracker.debian.org/tracker/CVE-2025-40083"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-40083#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-40083"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_qfq: Fix null-deref in agg_dequeue To prevent a potential crash in agg_dequeue (net/sched/sch_qfq.c) when cl->qdisc->"}