{"action":"Upgrade linux to 6.12.85-1 or later.","affected":[{"fixed":"6.12.85-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.12.85-1"],"id":"tcs_01M5NNSCENT03M97A8KSJ7NSKY","modified_at":"2026-10-31T09:47:32.211389840Z","published_at":"2025-11-12T11:15:43.220Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-40135","https://security-tracker.debian.org/tracker/CVE-2025-40135"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-40135#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-40135"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6_xmit() Use RCU in ip6_xmit() in order to use dst_dev_rcu() to prevent possible UAF."}