{"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_01M5NVVK8T8J52B8KZ2RMZB2JG","modified_at":"2026-10-23T17:47:29.260950785Z","published_at":"2026-09-11T20:19:07.710Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-81000","https://security-tracker.debian.org/tracker/CVE-2026-81000"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-81000#Debian:12/linux-6.12","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-81000"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: net: tun: bound receive headroom tun_get_user() uses tun->align both as skb headroom and when choosing how much packet data to keep"}