{"action":"Upgrade linux-6.12 to 6.12.107-1~deb12u1 or later.","affected":[{"fixed":"6.12.107-1~deb12u1","introduced":"0"}],"component":"linux-6.12","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.12.107-1~deb12u1"],"id":"tcs_01M5NNRREEVMQ05FR90432G6AW","modified_at":"2026-10-23T17:47:34.219532867Z","published_at":"2025-10-28T12:15:41.943Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-40074","https://security-tracker.debian.org/tracker/CVE-2025-40074"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-40074#Debian:12/linux-6.12","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-40074"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: ipv4: start using dst_dev_rcu() Change icmpv4_xrlim_allow(), ip_defrag() to prevent possible UAF. Change ipmr_prepare_xmit(), ipmr_q"}