{"action":"Upgrade linux to 6.12.105-1 or later.","affected":[{"fixed":"6.12.105-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.12.105-1"],"id":"tcs_01M5NVA20657YHM409S8WPWEEC","modified_at":"2026-10-23T18:05:44.319751345Z","published_at":"2026-08-22T16:16:39.177Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-74656","https://security-tracker.debian.org/tracker/CVE-2026-74656"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-74656#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-74656"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: ipv4: fix use-after-free in fib_nhc_update_mtu() fib_nhc_update_mtu() walks the nexthop exception table under RTNL, but RTNL does no"}