{"action":"Upgrade linux to 6.1.129-1 or later.","affected":[{"fixed":"6.1.129-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.1.129-1"],"id":"tcs_01M5NN1M09NXPCB8K0A2M9KX9D","modified_at":"2026-10-15T09:47:44.135368382Z","published_at":"2025-02-27T03:15:17.173Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-21765","https://security-tracker.debian.org/tracker/CVE-2025-21765"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-21765","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-21765"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU protection in ip6_default_advmss() ip6_default_advmss() needs rcu protection to make sure the net structure it reads d"}