{"action":"Upgrade linux to 6.12.16-1 or later.","affected":[{"fixed":"6.12.16-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["6.12.16-1"],"id":"tcs_01M5NN1H92C63GDF20F6W4H066","modified_at":"2026-10-15T09:47:41.805940Z","published_at":"2025-02-27T03:15:16.450Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-21758","https://security-tracker.debian.org/tracker/CVE-2025-21758"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-21758#Debian:14/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-21758"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: add RCU protection to mld_newpack() mld_newpack() can be called without RTNL or RCU being held. Note that we no longer"}