{"action":"Upgrade linux to 6.12.15-1 or later.","affected":[{"fixed":"6.12.15-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.12.15-1"],"id":"tcs_01M5NN0XXP7KJMGMEGFPMM9KB0","modified_at":"2026-10-15T09:47:34.050460171Z","published_at":"2025-02-18T15:15:18.633Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-21703","https://security-tracker.debian.org/tracker/CVE-2025-21703"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-21703#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-21703"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: netem: Update sch->q.qlen before qdisc_tree_reduce_backlog() qdisc_tree_reduce_backlog() notifies parent qdisc only if child qdisc b"}