{"action":"Upgrade linux to 6.1.133-1 or later.","affected":[{"fixed":"6.1.133-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.1.133-1"],"id":"tcs_01M5NN2V31T1ABN39VFZTZ4G0R","modified_at":"2026-09-01T20:05:42.905135375Z","published_at":"2025-03-27T15:15:57.027Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-21891","https://security-tracker.debian.org/tracker/CVE-2025-21891"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-21891","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-21891"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: ipvlan: ensure network headers are in skb linear part syzbot found that ipvlan_process_v6_outbound() was assuming the IPv6 network h"}