{"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_01M5NV7WV2S5ZEQH7K9Y10F0V0","modified_at":"2026-10-01T03:03:34.039304027Z","published_at":"2026-08-15T13:17:52.600Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-74478","https://security-tracker.debian.org/tracker/CVE-2026-74478"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-74478#Debian:12/linux-6.12","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-74478"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: um: vector: fix use-after-free in vector_mmsg_rx() When vector_mmsg_rx() discards a packet whose overlay header fails verify_header("}